Inheritance-Helix

> *"Bring me your Aspirants as boys, bring me your brothers, bring me your sons, bring me those few who would cross this o' so great Rubicon of pain and suffering. One that once crossed will commit him irrevocably to a life of war amongst the stars, a life bound in courage and honor. So that when he is ready, I will give you a man, molded and sculpted into a battle-brother borne anew, and made whole within his crucible."*
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> -Taken from the Litanies of the *Apothecarion Archoprogenitor Dominus-*

The term **"Inheritance-Helix"** is commonly used by the Imperial Legions to refer to either the genetic material responsible for creating the extraordinary Imperial Marines, or the Entire Biomechanical. This term encompasses the germ cells and viral machines that have been genetically engineered to develop into the various organs implanted into a mortal human adolescent, ultimately transforming them into a transhuman Angelus.

During the mid 90th Millennium, and whilst the 20 Luminarchs were still in embryonic development within the bowels of the Palace—the Emperor and the scientists of his Imperial Biotechnical Division, working in His gene-laboratories deep beneath the Kilaminjanto (Kilimanjaro) Mountains to craft the 20 sub-heritages of the Inheritance-Helix. Each sub-heritage, designed using the genomes of the 20 Luminarchs as a blueprint, would be unleashed through the Legions upon the Primaris, Parousian, and Trichotomic Foundings, wherein the Twenty Legions were born and unleashed to crusade for the Imperium.

The term *"Inheritance-Helix"* is often used to refer to the now defunct Angelus Progenium Clusters, the *original* iteration of the Inheritance-Helix and designed by the Emperor upon Terra.

To create a new generation of Imperial Marines, an Apothecary of the Archoprogenitor Temple must harvest the relevant genetic material from these glands. Originally, there were multiple redundant organ types, each corresponding to one of the specialized organs implanted in a human body to create an Angelus Marine. It is worth noting that some of these implants had neural components, requiring the subject to remain awake during surgery without the use of painkillers to ensure the implants integrated properly.

The organs derived from the Inheritance-Helix in the Era Angelus were at once cultured in-vitro and subsequently implanted. Others would require the injection of immature Progenoid Cell-Clusters into an Aspirant's body, allowing it to grow into a new organ whilst utilizing the individual's own physiological processes. This variation of Inheritance-Helix organs was used by all Imperial Marine Legions to unleash and control the metabolic processes that transformed ordinary mortals into Imperial Marines, starting from the Era Angelus to the Onset of the Era Luminous.

However, as in the present time, many of these organs and augmentations are cultivated internally within an Aspirant using the Third-Generation Inheritance-Helices' Morphogenic Engine. The new organs grow solely using the implantee's physiological processes. All Imperial Marine Legions now employ these far simpler Inheritance-Helix implantations to activate the transformative processes that turn ordinary mortals into Imperial Marines.

These new Inheritance-Helix organs contain complete genetic information required to reshape ordinary human cell clusters into the specialized organs possessed by Imperial Marines. The Inheritance-Helices incorporate genetically engineered viral machines that rebuild the human body according to the biological template contained within them. These templates were originally crafted by the Luminarchs, enabling their offspring to become anatomical replicas of themselves.

However, despite the existence of these new Luminaires, there is no standardized method for activating the transformative functions of the Inheritance-Helix's Morphogenic Engines across the Legions. As a result, each Legion has developed its own unique methods and rituals for creating new Imperial Marines.

For example, the Frostwind Hounds' Era Luminous incarnation utilizes a ritual known as "Blooding," while the Avenging Shields employ a process called the "Dominus Hand." The Astral Marauders and Stormwrath Scions conduct the "Rites of the Crackling Moon," and the Scarlet Lions follow the rituals of "Insanguination." Each Legion's distinct approach reflects their individual traditions and practices surrounding the transformation into a Luminous Marine.

## The Era Angelus Inheritance-Helix

The Era Angelus style of implanting new Inheritance-Helix organs, from the Primaris Founding to the onset of the Era Luminous, had evolved into a highly ritualistic practice over the years. And had taken on a near-religious significance within the Imperial Marine Legions. In this Era Angelus approach, the organs derived from the A-gen Progenium Cluster were meticulously cultured in vitro before being implanted within the Aspirants through either surgery or injection. The process involved carefully nurturing and growing these organs outside the body to ensure their optimal development and functionality.

However, there were cases where the implantation process required a different approach. Some Inheritance-Helix organs necessitated the injection of Immature Progenoid Cell-Clusters directly into the Aspirant's body. This method allowed the clusters to integrate and utilize the individual's own physiological processes, ultimately developing into fully functional organs.

Despite the generally successful implantation procedures, there were instances where further operations became necessary for certain Imperial Marines. These additional surgeries were required to address imbalances caused by poor initial implantation procedures or the Aspirant's body struggling to adapt to the hormonal and physical changes initiated by the implants.

The expedited nature of these implantation surgeries was a result of the massive scale on which the Angelus Legions were being rapidly built. The Legion Apothecarion Temples had to perform these procedures in a highly efficient and almost assembly-line fashion to accommodate the exponential growth of the million-strong Imperial Legions.

During this era, the focus was on speed and mass production, and while the procedures were generally successful, most Angelus Marines required corrective interventions to ensure the optimal functionality of their implants.

## The Era Luminous Inheritance-Helix

Though they now stand leaps and bounds above their Firstborn brethren of the Angelus, all Luminous Imperial Marines are still created using the original genetic matrices found in the 1st Iteration Inheritance-Helix of their Luminarchs, like all other members of the Legions before them.

In the pursuit of their attempt to improve upon the original Imperial Marine template, the Luminarchs Raphael O'sullivan, Tereiti Wetekina Kua, Xann Vakosa, and Te'Razlok Voyu Kalga along with the aid of Anikanov Zakharik and his Storm Raptors, collected samples of the genomes of their Luminarchal brethren in secret. It is known that in addition to the general advancements in their Inheritance-Helix, Luminous Imperial Marines possess additional Inheritance-Helix borne organs compared to their Firstborn Angelus-Era brethren, and that their Inheritance-Helix is far more genetically stable than that of their forerunners.

### Introduction of the Morphogenic Engine

The **Morphogenic Engine** is the first addition upon the Inheritance-Helix, a bio-mechanical marvel designed by the Luminarchs Kahorere Wetekina Tereiti Kua and Raphael O'Sullivan. This revolutionary development came about after the encounter with the Iron Asha'karii's esteemed 17th Iron Regiment, which ignited a spark of inspiration within the two Luminarchs. Their collaboration resulted in the creation of the Gen-4.5 Luminous Inheritance-Helix, empowered by the Morphogenic Engine, capable of unprecedented feats.

One of the most striking features of this innovation is its ability to foster the growth of Luminaire organs internally within an Aspirant, negating the need for external cultivation and subsequent surgical implantation. This remarkable transformation is made possible through the implementation of semi-sentient nano-bioswarms, skillfully manipulating genetic stem-cells and harnessing the forces of bio-generation.

However, it is crucial to note that the Morphogenic Engine underwent an arduous journey of refinement. Initially, a *flawed* version was developed and employed by the Vth Legion. Yet, fueled by their unyielding determination, Raphael and Tereiti Wetekina embarked on a mission to enhance this extraordinary creation. Drawing upon the groundbreaking research of Shaka Zawadi Mzuzi and incorporating the visionary advancements pioneered by the esteemed Luminarch Vakosa in her Noctis Marines, the duo embarked on a relentless pursuit of perfection.

Within the celestial confines of an orbiting laboratory encircling Astraeus' moon, Themous, the Luminarchs embarked on groundbreaking experimentation, utilizing vat-clones to delve into the rudimentary iterations of the Morphogenic Helix. Countless trials and tribulations ensued, with each setback serving as a stepping stone towards achieving the ultimate breakthrough. Eventually, their unwavering perseverance bore fruit, as true-born human trials validated the efficacy of their creation.

Emboldened by these triumphs, the Morphogenic Engine was ready to empower Aspirants hailing from the revered Legion Homeworlds of Inisfáil, A'tūrākau, Riter-0A4, and Astraeus itself. With a single implant, these extraordinary individuals were granted the unprecedented opportunity to embark on the path of becoming Luminous Marines.

#### Usage

Once the Inheritance-Helix is implanted, the Morphogenic Engine springs into action under the watchful gaze of the Legions Apothecarion. Carefully monitored, the Aspirants are guided through a state of prolonged morphogenic and biological evolution. With the completion of the activation process, the Engine takes root within the intricate systems of their bodies, marking the commencement of a remarkable transformation. Unlike the previous methods employed for Angelus and I'cartes, where organs were grown externally and later surgically implanted, the Morphogenic Engine, aided by semi-sentient nano-bioswarm cells (SSnB-Cells), orchestrates the growth of organs internally.

The inner workings of the Morphogenic Engine remain shrouded in mystery, with only Tereiti and Raphael privy to its true secrets. While the exact mechanisms elude understanding, confidential documents safeguarded by the vigilant Apothecarion Sects of the Legions offer glimpses into its operation. What can be discerned is that the Engine, utilizing its SSnB-Cells, seizes control of an Aspirant's viral DNA during the process of cellular differentiation. Through selective alterations to specific segments of the human genome, based on the intricate designs of the Luminarchs, the Engine endeavors to replicate their essence.

As these *"infected"* cells undergo division and transformation in accordance with their modified genetic blueprint, the Aspirant embarks on a years-long journey of bio-mechanic processes. New organs take shape, old ones are rebuilt, and bones and soft tissues undergo a painful metamorphosis into a state of super-human perfection.

Regrettably, the agonizing nature of this protracted process, coupled with the immense strain it places on the Aspirant's body and mind, leads to a significant mortality rate among those chosen to undergo the transformation. Despite precautions taken, the loss of Aspirants during this arduous journey has always been an unfortunate reality in the creation of the Imperium's super-human warriors.

##### Activation

Before the implantation and activation, aspirants undergo intensive hypnotherapy and training sessions, designed to induce extreme mental states. The purpose of this rigorous regimen is to elicit a psychosomatic response within the aspirant's bodily systems, rendering them more receptive to the production and control processes of the nano-bioswarms. However, this therapy exacts a heavy toll on the aspirant's sanity, as articulated by Luminarch Tereiti;

> "Only an Aspirant who has witnes- No, Who has experienced enough of the Universe's infinite horrors is capable of activating the Helix' Morphogenic engine."
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During the coursing presence of the bioswarm within the Aspirant's body, spherical biofluid-filled containers become their temporary abode, with life support tubes penetrating various orifices. It is within this encapsulated environment that the Aspirant's Helix is activated, prompting the Engine to generate precursor bio-streams. These bio-streams are then assembled by the Aspirant's own cells, forming semi-biofactories capable of nurturing the growth of the requisite organs, transforming them into Luminaires.

If an Aspirant proves unresponsive to the bioform-production process, it can lead to the rapid emergence of lesions and tumor-like growths. However, with timely detection, these aberrations can be halted and mended.

Comfort is an alien concept within the Luminous transformation process. Excruciating pain becomes an ever-present companion as Aspirants endure years of intense and pervasive growing pains, sculpted by the Morphogenic Engine into Imperial Luminous Marines. This anguish intertwines with the multitude of changes transpiring within their internal organic framework, painting a vivid portrait of the formidable trials they must withstand.

### Morphogenic Organs

The Era Luminous Imperial Marines stand apart not only due to the Super-Human organs bestowed upon their Firstborn brethren but also thanks to an array of supplementary augmentations that elevate them to even greater heights as formidable warriors.

The growth of these additional organs follows a meticulous progression consisting of six distinct stages. Each stage engenders the development of specific organs, each with its own unique function, further enhancing the already intricate systems within their bodies. However, it is important to note that there exists a significant discrepancy in the time it takes for an organ to initiate growth compared to when it reaches full maturity. Moreover, the period from the Engine's activation to the onset of growth varies even more drastically.

As an Aspirant progresses through the stages of organ growth, they experience a gradual and methodical integration of these new additions. Each organ serves a purpose tailored to complement their existing physiology, amplifying their capabilities as warriors of the Imperium. From enhanced sensory perception to heightened reflexes and improved metabolic efficiency, these supplementary organs confer a vast array of advantages upon the Era Luminous Marines.

The timeline of organ development unfolds in a carefully orchestrated sequence, arranged by the Morphogenic Engine. The Engine, operating with its inherited intelligence, regulates the growth process with unparalleled precision. However, the precise duration of each stage and the overall timeline required for the completion of the organ maturation cycle remain closely guarded secrets, known only to the Luminarchs and their trusted collaborators.

While the exact duration between the initiation of growth and full maturity varies for each organ, the transformative journey experienced by an Aspirant is undeniably protracted. It is a test of endurance, as they endure years of physical and mental trials. During this time, the Aspirants adapt to the influx of newfound organs, assimilating them into their physiological framework.

The Era Luminous Marines, with their advanced array of organs, become formidable warriors capable of super-human feats. As the Morphogenic Engine's intricate web of growth and maturation weaves its way through their bodies, these warriors emerge as paragons of martial prowess, embodying the indomitable spirit of the Imperium.

The first stage undertaken by the implanted Helix' Morphogenic Engine, is the reengineering of the human nervous system.

 **Neurological Reengineering and Super Myelination**
In the subsequent phase, known as Neurological Reengineering, the aspirants' nervous systems undergo a process referred to as "Super myelination." This process involves the amplification of myelin sheaths surrounding the nerve fibers, significantly increasing the speed of electrical signal transmission. Consequently, the response times between cells are further expedited, enhancing the overall efficiency of neural communication.
 Initiated sometime in the Aspirants 2nd year after Engine activation.
One of the remarkable enhancements granted to Luminous Marines is the development of the Somnian Node, also referred to as the 'Somnus False.' This gland-like organ is meticulously grown within the posterior region of the cerebrum, positioned just above the aspirant's brainstem. The Requiem Node plays a crucial role in the regulation of sleep and fatigue management.
In situations where extended periods of sleep deprivation occur, the Somnian Node activates a mechanism colloquially known as "*cutting in*." This mechanism is triggered by the detection of elevated stress and fatigue hormones, characteristic of Luminous Marines in such conditions. By consciously "*switching off*" specific sections of the brain in a sequential manner, Luminous Marines can remain awake and alert while conserving mental resources. However, it is important to note that prolonged usage of this ability may lead to potential risks, including hallucinations or even psychosis. The condition referred to as '*Soporous Mendax Psychosi*' or SMP Insanity, as coined by the Luminarch Raphael O'Sullivan, signifies the onset of these hazardous psychological manifestations. Consequently, while the Somnian Node provides Luminous Marines with exceptional cognitive adaptability, it must be utilized judiciously to mitigate potential adverse effects. It is vital for Luminous Marines to recognize their limitations and ensure adequate periods of rest to maintain optimal functioning.

Secondly the next stage undertaken by the Helix, is the reengineering of the Aspirants skeletal system, an action that often takes 4 to 5.5 years to fully complete.

And as such the skeletal restructuring process is the basis of which the entire systematic bio-evolution is recorded.
Often taking 4-5.5 Years(2-3 in some cases) to fully complete.
 **Bone Development and Remodeling**The activation of hyaline cartilage cells in the epiphyseal plate of major bones, such as those in the arms, legs, hands, and feet, plays a pivotal role in bone development. Neo-osteoclasts, bio-mechanical cartilage cells generated by the Ossificatuary Gland, initiate a process of mass bone resorption by breaking down old bone tissue.
 **Cranial Expansion and Dentition**A notable transformation occurs in the bones and muscles of the face and skull. Approximately three weeks after the growth of the Ossificatuary Gland, the cranium undergoes massive expansion facilitated by growth hormone secretion.
 **Hyper Odontogenesis and Dentition**The Morphogenic Engine's SSnB-Cells initiate a process of hyper odontogenesis, leading to the growth of supplemental supernumerary teeth. Tooth buds develop directly from the dental lamina, with the original human teeth undergoing breakdown and reconstitution in other areas of the Marine's development. The regulated expression of tooth growth ensures that only necessary replacements are constructed as teeth are worn down or lost.
 **Proportionate Physical Development**The Ossificatuary Gland, being geneologically aligned with the Legion's Inheritance-Helix, aims to recreate the physical traits most common within the respective Legion. While an aspirant's own physical potential influences their final properties, such as height, build, and weight.
 **Thoracic Modifications and Rib Cage Enhancement**
Throughout the growth process, the aspirant's rib cage undergoes significant modifications, resulting in a semi-solid mass of interlaced bone plating. This reinforced structure provides exceptional protection for the internal organs, surpassing the capabilities of a normal human skeleton. However, it presents challenges for Medicae attending to surgical procedures within the Marine's body cavity.
The Ossificatuary Gland orchestrates the augmented growth of the rib cage through progressive and inferiorly directed bone growth. The intercostal spaces between the ribs are covered with bio-carbon-reinforced bone, resulting in an overlapping plate armor appearance. This enhanced structure adds an additional layer of security for the internal organs while maintaining flexibility.
Contrary to popular belief, perpetuated by misguided Imperial Remembrancers, a Marine's rib cage is not fused together, as this would hinder respiration. Instead, the ribs remain connected to one another via tough, dense, and elastic connective tissue ligaments. During inspiration, the diaphragm moves inferiorly, while accessory muscles elevate the rib cage, expanding the thoracic cavity. The modified ribs elevate and slightly flare out, allowing for increased air intake. During expiration, the diaphragm rests and moves superiorly, while accessory muscles depress the rib cage. The ribs settle back onto one another in an overlapping fashion.

Thirdly the Helix undertakes the reconstruction of the Aspirants muscular system, an action that often starts after the reenginerring of the Aspirants skeleton has begun.

Often the process takes less time as well between 3 to 4 years to fully complete, as it's done almost congruently. And as such an Aspirant grows in strength, speed and durability just as fast as they grow in height.

While the second is grown some months later.
 After the growth of the Ossificatuary Gland, Muscular Rebuilding is then started almost congruently in most cases.
But can be expected to begin 1 standard week after Ossificatuary Gland activation.
The Amplifiers primarily stimulate muscle growth throughout the Marine's body, resulting in a substantial increase in physical strength. The growth of the duel glands typically occurs concurrently with the Neurological and Skeletal Reconstructions, taking place between the first to third standard years of an aspirant's development into a Luminaire.
 **Maxillofacial Enhancement - Dread Jaw**An integral aspect of the Luminous Marine's transformation involves the targeted enhancement of the chewing muscles of the jaw, namely the masseter, pterygoid, and temporalis muscles. These muscles undergo substantial enlargement and strengthening under the influence of the Morphogenic Engine. Concurrently, the maxilla and mandible undergo reinforcement through the deposition of ustrumic biocarbon, facilitated by the activity of neo-osteoblasts. This painstaking process occurs over a period of 2-4 years, during which the aspirant's jaw bones are progressively fortified and reshaped.
 **Reinforcement with Biometallic Coiling**
To further enhance the Marine's physical capabilities and provide additional defense, the muscular sinews are reinforced with ingrown Biometallic coiling. These coiling structures can contract with immense force, magnifying the Marine's strength and adding an extra layer of physical protection to their body.

Next the Engine undertakes the overhauling of the Aspirants cardiovascular, and respiratory systems, an action that is often heralded by the growth of the Aspirants secondary hearts.

Often the overall process takes between 1 to 2.5 years to fully complete.

Often grown in the middle months of the 1st year.
 **The Multi-lung - Efficient Toxin Dispersal System**
 The 3rd organ grown, often in the 2nd year.
 The 4th organ grown, often in the 3rd year.
The Animus Vitalus, also known as the *Healer*, is an organ shaped like the human liver but only the size of a golf ball. It is the third organ grown within the circulatory system, located near the ternary hearts. The Animus Vitalus manufactures synthetic biological cells called Vitalae Cells. These cells serve a similar purpose as platelets in a mortal body, clotting the blood lost from wounds. However, Vitalae Cells are capable of acting much faster, more efficiently, and effectively. When a Marine sustains a wound with heavy blood loss, the Vitalae Cells are released into the circulatory system, attaching to the body's leukocytes (white blood cells). They rapidly form scar tissue at the site of injury, preventing significant blood loss and infection within a matter of seconds.

Finally, one of the Helix' longest biological rebuilds is that of the digestive system. Often starting congruently with the reconstruction of the Aspirants muscular system.

Often the process takes the longest time as well, normally finishing after the skeleton is fully grown between 5 to 5.5 years to fully complete.

 The 5th organ grown, often in the 3rd year.
 The 6th organ grown, often in the 3rd year.
 The 7th organ grown, often in the 4th year.
The Emundatio Kidney, also known as the *Purifier*, is the third organ grown within the Luminous Marine's digestive system. Located in the abdominal cavity, it becomes part of the Marine's excretory system. The Emundatio Kidney acts as an emergency detoxification organ, enabling the Marine to survive exposure to powerful poisons, toxins, and gases through respiration, tactile contact, or ingestion. It supports the Marine's immune system when the toxins are too potent for normal processing. However, the intense detoxification processes can render the Marine unconscious, making it dangerous during combat. Under normal circumstances, the Emundatio Kidney also functions as a regulatory organ, maintaining the efficient action of the advanced circulatory system and ensuring proper functioning of other organs in the Luminaire's physiology.

During an Aspirants transformation into a Luminaire the Helix will generate these 4 distinct biomechanical organs.

All of which are essentially random when compared to the systematic reengineering seen elsewhere.

Though the growth of certain organs came to be triggered by the completed growth and activation of other organs.

Though can begin development in the 2nd or 3rd years.
 Often developed in the 1st Year.
Though development can be pushed to the 3rd or 4th years.
 Often developed sometime in the 2nd Year.
Though can begin development in the 3rd or 4th years.
 **Pelliusuta' - Phantom Weave and Envi****ronmental** **Protection**
The Pelliusuta', also known as the *Phantom Weave*, is an ingrown gland developed alongside the Peliasutum. Attached to the central nervous system, this gland responds to specific chemical stimuli in the environment. It causes the Marine to secrete a waxy protein substance, similar to mucus, through their pores, which tightly seals the skin. This process, known as cocooning, is often performed before entering suspended animation and can provide protection from the vacuum of space and extreme temperatures, including freezing environments. Activation of the gland's bio-operations requires external chemical treatment, usually self-administered during the Aspirant's development into a Luminaire.

> *Please bear in mind that there is a stark difference in time between when an organ begins growth, and when it would be officially matured, and even more so to when the Helix is expected to have begun its growth, with each Legion therein having different rates of Organ Growth within their own Ranks. The list above is an informed guess held by the majority of the Legion Apothecarions as to when an organ can be expected to have begun its growth. Though both Legion, and Individual aberrations exist, they are not the norm and are not recorded as such.*
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## Additional Information

### Non-Helix Born Implants

#### The Neuro-Enhanced Machinery Operating System (NEMOS Link)

The NEMOS Link is a sophisticated technology that revolutionizes the integration between the human nervous system and machinery. This advanced system consists of a neuroactive, black organic fibrous material that is carefully implanted directly under the skin of the Bearers torso, thighs, upper-arms and forelimbs, in conjunction with The S.I (Spinal Interface) that spans along the spine.

To establish the connection, skilled Medicae professionals delicately cut through the Interface using specialized surgical tools. This precise procedure allows the Bearer to establish a direct interface between their central nervous system and the cybernetic systems of either their Power Armor or any other form of integrated machinery. And over the course of a few solar hours, the implanted material gradually hardens, while invasive synthetic fiber bundles begin to grow inward. These bundles act as connection points for neurons, intertwining with the Bearer's central nervous system.

It's important to note that the NEMOS Link is essential for a Luminaire to fully utilize the capabilities of their Power Armor, ensuring optimal performance on the battlefield. However, the Power Armor itself does not require this implant to function mechanically.

#### Spinal Interface

The Spinal Interface, also known as the *Ferro Animus*, is a widely used term referring to a collection of Imperial Neurolinked-Cybernetics surgically implanted into the Veteran Elite of the Imperium's Armies. This advanced interface is specifically designed to enhance the movements and control of individuals wearing larger and more intricate Marks of Power Armor or Carapace Suits.

By utilizing the Spinal Interface, forces of the Imperial Legions gain remarkable precision and fluidity in their movements while donning these advanced suits of armor. Each user of the S.I is equipped with a sub-brain that supports all metahuman functionality, effectively reducing strain on the human brain. With this sophisticated system, the cybernetics seamlessly coordinate with the user's intentions, enabling extensions of the Power Armor to perform predefined movements without the need for complicated commands.

##### Notable Spinal Interface Augments:

* **Exo-Disks:** These advanced implants significantly enhance the brain's capacity to store and process information. By expanding neural networks and increasing synaptic connections, Exo-Disks enable users to access vast amounts of data and augment their cognitive abilities.
* **Maneuvering Subsystem:** This subprogram optimizes the function of the nervous system, enhancing reflexes, coordination, and overall motor skills. It improves the bearer's agility, allowing for precise and swift movements, especially in combat scenarios where speed and dexterity are crucial.
* **Reflexive Tuner:** The Reflexive Tuner is a sophisticated cogitation processor that aids decision-making processes, particularly in high-pressure or emergency situations. It rapidly analyzes incoming sensory information, assesses potential threats, and suggests optimal courses of action, enabling users to respond quickly and effectively.
* **Nano-Relays:** Nano-Relays are advanced implants that enhance the speed of nerve impulses within the bearer's body. These miniature devices work at the molecular level, optimizing neural communication and significantly reducing response times. The result is heightened reflexes and increased overall speed of reactions.
* **Synapse Accelerators:** Designed specifically for Imperial Troop Elite units, Synapse Accelerators are advanced neuroprocessing chips. They play a vital role in regulating the bearer's hormonal balances during threatening situations, ensuring optimal mental and physical performance in high-stress environments. This augmentation allows troops to remain focused, calm, and efficient in combat scenarios.
* **Neofibers:** Neofibers are synthetic muscle fibers that find extensive integration into Priscillan Juggernaut Chassis. These highly durable and flexible fibers enable the entombed occupants to better operate their mostly mechanical bodies. By mimicking natural musculature, Neofibers enhance strength, endurance, and overall physical capabilities, empowering the bearer to carry out demanding tasks with precision and power.
* **Neural Adaptive Dampeners:** These sophisticated implants regulate neural activity and dampen excessive sensory input, helping to protect the bearer's nervous system from overload. By filtering out unnecessary or overwhelming stimuli, Neural Adaptive Dampeners enhance focus, concentration, and resistance to sensory distractions, allowing users to maintain optimal performance even in chaotic or overwhelming environments.
* **Cerebral Boosters:** Cerebral Boosters are advanced neurostimulation implants that enhance cognitive abilities, including memory recall, information processing, and learning speed. By stimulating specific regions of the brain, these augmentations amplify the bearer's intellectual capacities, enabling rapid assimilation and analysis of complex data, as well as the ability to retain vast amounts of information.
* **Neural Interface Sync:** This augmentation establishes a direct neural link between the bearer's consciousness and compatible machinery or computer systems. It enables seamless integration and control, allowing the user to manipulate or access external devices, interfaces, or networks through neural commands. This interface enhances the bearer's ability to interact with advanced technology and facilitates efficient information exchange.
* **Neural Resilience Matrix:** The Neural Resilience Matrix is a complex system of neural implants and adaptive algorithms that provide enhanced resistance to psychic intrusions, mental attacks, and psychological manipulation. This augmentation fortifies the bearer's mind, granting resilience against telepathic assaults and empowering them to maintain clarity and focus even in the face of psychic interference.
* **Kinetic Stabilizers:** Kinetic Stabilizers are specialized implants that enhance the bearer's balance, stability, and resistance to external forces. By integrating with the spinal interface, these augmentations enable the user to withstand strong impacts, maintain equilibrium in challenging terrain, and resist physical disruptions caused by explosions or sudden movements. Kinetic Stabilizers enhance overall combat effectiveness and survivability in demanding situations.

### Creation of new Inheritance-Helix

In the Era Angelus, the Progenium Replicat served as an auxiliary implant used for collecting and storing genetic data within an Imperial Marine, and later on grow a second Inheritance-Helix to maturity for surgical excision and later implantation into a new-marine.

Initially, it was implanted into the reinforced chest cavity of the Angelus. However, in the Era Luminous, the Replicat shares a biological link with the Helix, similar to that of the Morphogenic Engine.

The primary purpose of the Replicat is to safeguard the genetic seed of the Inheritance-Helix and Morphogenic Engine. This not only ensures safekeeping but also provides an opportunity for a Legion to regenerate itself over a prolonged period, especially after suffering significant losses. The germ cells within the Replicat mature over five to ten Terran years and can be harvested once they reach maturity, up until a year or two after the Marine's death. Each Replicat contains the genetic blueprint for the Inheritance-Helix with Era-Luminous iterations including the Morphogenic Engine, enabling the internal growth of the specialized organs required to create an Imperial Marine within an Aspirant.

Once the Replicat is removed, samples are taken and cultivated to grow new Helices, allowing the Legion to increase its numbers. As a result, the death of a Marine leads to the addition of another warrior to the ranks, with the Inheritance-Helix replicated and harvested from the fallen hero's body. This ensures their legacy lives on in each new warrior who follows their path.

In the event of a Legion suffering catastrophic losses of its Inheritance-Helix, desperate measures may be taken. Apothecaries of the Legion may resort to using test-slaves to mass-breed new Inheritance-Helix and rapidly restore the Legion's strength. These test-slaves are often Human males, typically condemned Imperial criminals who would otherwise be turned into servitors or entered into Penal Regiments. However, for Legions that have reservations about *"infecting"* their Gene-Line with the blood of criminals, flash-grown pure-clones crafted from genetic samples taken from their homeworlds may be utilized.

These "Helix-Farms" are implanted with multiple Dormant Helix-Seeds and kept within an artificial environment inside the Legion's fortress-monastery. While alive and partly conscious, they are unable to leave their transparent plasteel gestation chambers throughout the full 5-10 year maturation process. As the Progenium cultivates their forms to create the much-needed new Helices, their bodies may become bloated and changed beyond recognition as the Helices' bloat their mortal bodies.

It is important to note that this solution is generally regarded as far from ideal and is seen as a last-resort option to maintain the survival and strength of a Legion. The utilization of test-slaves or genetic clones is a compromise driven by the dire need to preserve the Legion and fulfill their duty to the Imperium.

### Marine Fertility

Both generations of the Imperial Legions have undergone extensive psychological and cognitive conditioning to reshape their minds and redirect their instincts towards aggression, goal attainment, and the unwavering fulfillment of duty. This conditioning serves to suppress their baser drives and ensure a unified purpose among the ranks. Additionally, the implantations undergone by the Firstborn Angelus render them incapable of procreation, further solidifying their identity as warriors singularly focused on conquest.

However, the introduction of the Morphogenic Engine in the Era Luminous brought unforeseen consequences. While Luminous Marines still undergo rigorous mental reworking and psychological conditioning, the Morphogenic Engine introduces a significant change. It allows the Marine, even after undergoing psycho-conditioning an Morphological Reconstruction, to retain their biological ability for procreation. As a result, the Engine transforms the Marine into a pale reflection of their Gene-Sire, imbuing them with the potential for procreation and child-rearing.

While the Luminarchs themselves possess the ability to procreate and raise children, it should be noted that female Luminous Marines often have a 6/10 chance of infertility. Some Legions, such as the Hierophants of Fire and the Imperial Harbingers Legions, implement safeguards to prevent procreation among their Marines through ritualistic vasectomization.

However, it is important to acknowledge that these practices are not widespread among the Imperial Legions. In certain Legions deemed "underpowered" by Legiones Standards, Luminaires are allowed to integrate with the mortal populations of their homeworlds without such safeguards. Nonetheless, it is crucial to understand that these practices are not the norm and vary among the Legions.

### Selection Process

The Imperial Marine recruits are typically selected from the best warriors among humanity. Naturally this makes Death and Feral Worlds prized recruitment grounds, as such harsh and primal conditions produce the best warriors. However, spire worlds are considered the ideal source of potential recruits; while the populace of the lower levels are often composed of some of the most murderous scum of the Stellar Imperium, more importantly, the higher the population of a world, the higher the chance to find truly impressive individuals.

Whole gangs of Spire scum are sometimes hunted down and captured for recruitment, although Legions typically prefer volunteers, as seen in the warriors of the IInd, VIth, and XIth. Among the most valued traits in a recruit are aggression and a certain psychotic-level of killer instinct. This reserve of will, an unteachable and uninheritable desire to win is what makes a great Imperial Marine, that is what makes a Angel of the Emperor out of a man. But much more rarely, certain civilized worlds are also recruited from, most namely a Legions Homeworld.

### Female Luminaires

Since the establishment of the Imperial Angelus Legions, the selection of recruits has predominantly favored the most exceptional warriors among humanity. Consequently, only these warriors possess the potential to aspire to become Marines infused with the sacred blood of the Luminarchs. This recruitment process has naturally gravitated towards Death and Feral Worlds, where harsh and primal conditions forge the finest warriors.

*Traditionally*, the majority of recruits are male, primarily due to the fact that the Helices' zygotes are intricately linked to male hormones and genetic structures. This alignment stems from the fact the Luminarchs are Predominantly Male and their gene-lines are keyed to Male gene-structures. However, Legions sired by female Luminarchs are fully capable of accepting female recruits on equal terms with their male counterparts. This principle holds true even in the Era Luminous.

> *Note: Though it is better solely for Male Marines to hail from Male Luminarchs, it does not mean Male Luminarchs cannot give rise to Daughters. It simply means it is not always advantageous to do so, as the Helix is coded solely for the Male Genome this leads to higher mortality rates for Female aspirants. But as seen in the past whilst rare as compared to Legions hailing from Female Luminarchs, Daughters of Male Luminarchs are entirely possible, though as previously stated **rare**.*
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Female Luminarchs on average are simply smaller than their Brothers, and this rings true even more so for their daughters. While female recruits have the same degree of potential as their male peers when Implanted with an Inheritance-Helix, born of a Female Luminarchs Gene-Line they inherit the same number of ingrown organs, glands, and biological reconstruction as they become Giants crafted from Titans, though unlike their Brothers they hold growth-rates only topping out at around 7.5-8 Standard Terran feet (2.4-2.7 meters) in height with an equivalent amount of female musculoskeletal mass born of the Helices transformations, these female Marines though often much smaller then their Brothers are just as tactically capable, and skilled as their male kin.