Centurio Ordinatus - Known Ordinatii: Ordinatus Armageddon - Ordinatus Armageddon first shed blood during the massive Chaos invasion of the planet of the same name during the First War for Armageddon. The Krone Banelords, a group of Daemon Engines deployed for the Chaos assault upon Armageddon, were instrumental in the destruction of many cities, but a genius of the Adeptus Mechanicus, Geronimus Undersen, devised an Ordinatus as a defence against the marauding war machines. Undersen mounted a massive starship weapon onto a land bound chassis, giving the Imperial forces an immense war machine powerful enough to destroy even the largest and most heavily armoured foes. This idea was by no means original, and followed the concept behind the famous Squat Titan-killer known as the Cyclops. In the ensuing battle for Tartarus Hive, Ordinatus Armageddon destroyed no less than four Chaos Titans, and two detachments of Daemon Engines. With the heavy firepower of this machine, the Chaos assault waves broke upon the mile-high walls like a tide upon the rocks. Ordinatus Armageddon is feared by all enemies of the Imperium as a war machine capable of destroying all opposition.Ordinatus Belecane - The Ordinatus Belacane is an ancient and forbidding device mounted upon a colossal tracked crawler which can project a vast temporal Stasis Field up to a kilometre away. This field can either freeze anything in the path of its beam immobile, making it vulnerable to missile attacks, or age the target by centuries in a second if it is organic. It has not been used in anger for over 500 standard years, and is now regarded as too precious to leave its home planet, the Forge World of Belacane.Ordinatus Hervara - The Ordinatus hidden in the caverns of the planet Hervara, located on the Calixis Sector's Spinward Front, is a Sonic Disruptor. Physically, because of its armament, this Ordinatus most closely resembles the architectural style of the renowned Ordinatus Mars. While the whereabouts of that ancient vehicle are uncertain, there are no records of it ever having been in the Calixis Sector. Historical imagery also indicates several critical design variations from the Ordinatus present on Hervara. The origins of the one found buried upon Hervara are unclear. Consequently, its historical record remains unknown. In the event that the Imperial Guard were to recover the vehicle, it is certain that members of the Adeptus Mechanicus would make uncovering its history a priority. Most likely, the Ordinatus was sent to Hervara to be refit after seeing action during long-passed days of the Great Crusade. As there are no known records of activity upon the world from that ancient era, the massive vehicle might even have seen service there. Alternatively, it might be that it was used elsewhere within the Periphery Sub-sector, and transferred to Hervara because of the availability of certain raw materials or technical expertise at the time. Unless some documentation survives within the vehicle's Machine Spirit (Artificial Intelligence), the weapon's true history is almost certainly lost to time.Ordinatus Gehenna - The Gehenna is equipped with a massive weapon known as the Apocalypse Cannon. This weapon is capable of destroying mountains and punching a hole through a planet's crust to release a cataclysmic upwelling of magma. The Gehenna was fought over during the 13th Black Crusade in 999.M41 by the Forces of Chaos and the Imperium.Ordinatus Golgotha - After the infamous Ork Warlord Ghazghkull Mag Uruk Thraka was defeated on the Hive World of Armageddon during the Second War for Armageddon, he fled to the stars. His nemesis, Commissar Yarrick, tracked him down to the Squat world of Golgotha. Despite the assistance of Yarrick, the Squats were defeated by Ghazghkull's horde and Yarrick was captured. In an attempt to humiliate his arch-foe, Ghazghkull did not kill Yarrick, but imprisoned him instead. However, the resourceful Yarrick managed to escape and return to Golgotha with a punitive force of Titans and Skitarri. The early battles went badly for the Imperium, as the sheer size of the Ork WAAAAGH! overwhelmed them time and time again. In an attempt to smash the massive Ork mobs, Ordinatus Golgotha was constructed in the recaptured strongholds of the Squats. Golgotha's terrifying Hellfire Missiles devastated the Orks, slaying thousands over the course of a week. The Orks were routed from the Squat homeworld and since then, Ordinatus Golgotha has always been in the forefront of any battle against enemies who have a strong numerical advantage.Ordinatus Mars - This Ordinatus was created at the outset of the Horus Heresy during the Mechanicum civil war known as the Schism of Mars by Loyalist Mechanicus forces to overcome the problem of assaulting the Dark Mechanicus forge-city known as the Castellum Jericho. This formidable citadel boasted walls half a mile thick and was protected by a mysterious archeotech device known as a Vortex Field Generator. The central bastion was constructed from the hardest metal alloys known to humanity and could withstand any amount of pounding by the Imperium's formost siegemasters. The Ordinatus Mars utilised the unique technology known as a Sonic Disruptor to produce sound waves which resonated across the battlefield, crumbling the walls of the formidable citadel to dust as they were shook apart.Ordinatus Endymion - There is no information about the nature of this Ordinatus in current Imperial records beyond its name.Ordinatus Magentus - The Magentus is equipped with a Sonic Destructor Cannon, similar to the Ordinatus Mars, and is capable of annihilating entire city blocks and even mountain slopes. It was part of the Adeptus Mechanicus contingent during the Imperium's battle against Chaos Space Marines of the Word Bearers Legion on the planet of Tanakreg.Ordinatus Priam - This huge tunneling Ordinatus was assembled during the Siege of Priam, a city overrun by the Traitor Legions during the Horus Heresy. This immense creation was designed to tunnel through the planet's crust and then navigate through the white-hot molten rock of the mantle underneath. This rendered it undetectable to Priam's defences and allowed four companies of elite Imperial Army troops to storm the city's Generatum Vulcanis, breaking the siege. However, Ordinatus Priam was irrevocably damaged during the attack, as parts of its heat shielding gave way.Ordinatii Minoris - Ordinatii Minoris are massive crawler units, each the length of three Leman Russ Tanks. They possess two wide track units, one at the front and one at the rear, and between these is supported the mass of the war machine. Upon their backs are mounted massive artillery pieces originally developed to be borne by the colossal war machines of the Titan Legions. 	 	<a href="https://static.wikia.nocookie.net/warhammer40k/images/1/1b/Ordinatus-Aktaeus.png/revision/latest?cb=20190604070754" class="image"><img alt="Ordinatus-Aktaeus" src="https://static.wikia.nocookie.net/warhammer40k/images/1/1b/Ordinatus-Aktaeus.png/revision/latest/scale-to-width-down/250?cb=20190604070754" decoding="async" loading="lazy" width="250" height="258" class="thumbimage" data-image-name="Ordinatus-Aktaeus.png" data-image-key="Ordinatus-Aktaeus.png" data-relevant="1" data-src="https://static.wikia.nocookie.net/warhammer40k/images/1/1b/Ordinatus-Aktaeus.png/revision/latest/scale-to-width-down/250?cb=20190604070754" /></a> 	 		 			 		 		 		 	 Ordinatus Aktaeus - The Aktaeus is the most recognisable of the Ordinatus Minoris created and operated by the ancient Mechanicum, a super-heavy transport designed to carve a path through the stony heart of a world to deliver its cargo of warriors to the centre of the battlefield. Known to the armies of the Emperor as the "Imperial Mole," this vehicle is a siege engine capable of rendering even the most formidable fortifications pointless by burrowing beneath them. Based upon lesser examples of ancient terrascaping and earth-shaping engines, the Aktaeus design mounts only a relatively small battery of defensive weapons, including a series of melta-cutters to aid its tunnelling, and a missile system designed to saturate the vehicle's exit point and cover the disembarkation of its cargo. Such is its efficacy at siege work and Zone Mortalis transport, it is often seconded to other branches of the Imperial Host, seeing use with both the Imperialis Militia and Legiones Astartes under the supervision of Mechanicum adepts.Ordinatus Hellion - The Hellion-Minoris war machines were devised expressly for the Rangdan campaigns. Its primary weapon was a powerful Eradication Cannon developed by the Ordo Reductor. 	 	<a href="https://static.wikia.nocookie.net/warhammer40k/images/b/ba/Ordinatus_Sagittar_2.png/revision/latest?cb=20160401233652" class="image"><img alt="Ordinatus Sagittar 2" src="https://static.wikia.nocookie.net/warhammer40k/images/b/ba/Ordinatus_Sagittar_2.png/revision/latest/scale-to-width-down/250?cb=20160401233652" decoding="async" loading="lazy" width="250" height="111" class="thumbimage" data-image-name="Ordinatus Sagittar 2.png" data-image-key="Ordinatus_Sagittar_2.png" data-relevant="1" data-src="https://static.wikia.nocookie.net/warhammer40k/images/b/ba/Ordinatus_Sagittar_2.png/revision/latest/scale-to-width-down/250?cb=20160401233652" /></a> 	 		 			 		 		 		 			An Ordinatus Sagittar 		 	 Ordinatus Sagittar - The ancient Mechanicum's Ordinatus Sagittar is a massively destructive war engine, as rare as it is potent. Similar in design to the Ordinatus Ulator, the Sagittar differs in its primary weapon being a Volcano Cannon of prodigious power. In the time of the Great Crusade the Ordinatus macro engines were rarer than even the Battle Titans of the Legio Titanica, and only a handful of Forge Worlds had the resources or indeed the doctrinal blessing and religious authority to produce or maintain such embodiments of the Omnissiah's divine wrath. Such was the sacredness of these machines above all others, that an entire sub-cult of the Mechanicum was devoted to their worship and propitiation. 	 	<a href="https://static.wikia.nocookie.net/warhammer40k/images/e/e6/Ordinatus_Ulator.jpg/revision/latest?cb=20151205043825" class="image"><img alt="Ordinatus Ulator" src="https://static.wikia.nocookie.net/warhammer40k/images/e/e6/Ordinatus_Ulator.jpg/revision/latest/scale-to-width-down/250?cb=20151205043825" decoding="async" loading="lazy" width="250" height="169" class="thumbimage" data-image-name="Ordinatus Ulator.jpg" data-image-key="Ordinatus_Ulator.jpg" data-relevant="1" data-src="https://static.wikia.nocookie.net/warhammer40k/images/e/e6/Ordinatus_Ulator.jpg/revision/latest/scale-to-width-down/250?cb=20151205043825" /></a> 	 		 			 		 		 		 			Ordinatus Ulator 		 	 Ordinatus Ulator - A rare and truly arcane weapon system of staggering power, the Mechanicum Ordinatus Ulator is of the smaller classes of Ordinatus, but nevertheless is one of the most potent war machines at the Imperium's disposal. In the time of the Great Crusade, Ordinatus macro engines were rarer than even the Battle Titans of the Legio Titanica, and only a handful of Forge Worlds had the resources, or indeed the doctrinal blessing and religious authority, to produce or maintain such embodiments of the Omnissiah's divine wrath. Such was the sacredness of these machines above all others that an entire sub-cult of the Mechanicum was devoted to their worship and propitiation. An Ordinatus Ulator carries a trio of Volkite Culverins as its secondary armaments, but its primary weapon is the Ulator-class Sonic Destructor. A terrifying weapon whose origins lie in the shadows of the Age of Strife, the Sonic Destructor can generate a wave of annihilation that wreaks havoc across a battlefield. Three of these deadly Ordinatus platforms were to be given over to the Warmaster Horus at the behest of the Renegade Forge World of Xana II. These Ordinatus, named Mithrax, Nepothax and Ashurax after Ancient Terran deities, were first to be demonstrated before the Warmaster's chosen emissary at the Forge World's own proving grounds on the moon of Xana-Tisiphone, then afterwards, their ceremonial handover would act as a symbolic sealing of Xana's loyalty to Horus. In the end, however, two of the three were captured by Loyalist forces led by the Blackshield commander Endryd Haar during the Xana Incursion in 009.M31, and one was destroyed during that battle.Ordinatus Urkallac - There is no information about the nature of this Ordinatus in current Imperial records beyond its name.Ordinatus Ullanor - A desperate attempt of the Adeptus Mechanicus to turn the tides of battle to their favour after the disastrous initial landing of Imperial forces on Ullanor to destroy The Beast during the War of the Beast, which in the mid-32nd Millennium represented the greatest threat to Mankind since the Horus Heresy. After the flagship of the Mechanicus had been dragged to the surface of Ullanor by Orkish grav-weapons and the Astra Militarum contingents had been severely mauled by surprise attacks, loosing much of their equipment and armour, the Martian priests became desperate. Salvaging the remains of the Capitol Imperialis Praetor Fidelis, they mounted a plasma accelerator from their crashed ship onto the remaining treads of the super-heavy transport and used the generators to power the contraption. Clad in scaffolding, the ponderous vehicle rumbled across the surface of Ullanor and engaged Gargants in battle until it was ultimately destroyed in the assault on the capital city of Gorkogrod.Ordinatus Volcanis Ultor - A massive ballistic artillery piece manned by Volcanis Ultor's class of Tech-priests, this Ordinatus was used by the Dark Mechanicum with the intent to destroy the attacking forces of Grey Knights Space Marines before they could manage to breach the Heretics' defence lines. The battle would have been over in moments if the Ordinatus, stationed in the wasteland surrounding the primary hive city, could home in on the landing enemy forces and send pinpoint salvoes of multiple warheads on top of them. Fortunately, this Ordinatus was destroyed by the wreckage of the Grey Knights strike cruiser Rubicon after it was destroyed by the Chaos warships defending the planet from space. The Rubicon crashed into the Heretics' defence lines, and the massive wreckage ripped apart the Ordinatus' immense cannon barrel and its titanic ammunition loader systems.Ordinatii Diamat - The Eradicant and Obliteratus were potent siege-guns stolen from the ancient Mechanicum on Diamat by the Ist Legion during the opening days of the Horus Heresy in order to deny them to the Traitor Legions of the Warmaster Horus. The gargantuan mobile artillery pieces were subsequently entrusted to Perturabo before the Drop Site Massacre -- given as a gift from one Primarch to another -- the pride-foolish Lion El'Jonson thinking to buy the loyalties of his brother to be chosen as the next Warmaster after Horus was defeated. The Lion had unknowingly handed over the mighty siege-guns to the traitor Iron Warriors Legion, who later go on to make good use of them against the Imperial Palace during the Siege of Terra. The mighty Ordinatii were as long as a Titan was tall, their enormous barrels comprised of a single Macrocannon gaping darkness and death from where its great pulleys and derricks allowed them to rest. The massive machines bristled with automated emplacements -- quad-lasers, flak batteries and mega-bolters silent and ready to roar to the siege gun's defence. Fat, tracked ordnance compartments two stories high stretched for hundreds of meters, trailing the main gun carriages like the segmentations of a death world decamillipede. Fully armoured and protected by void shield generators, their weaponry could level a small fortress with ease from miles away. Each mobile-artillery piece also boasted an MIU interface chamber -- a neural link between weapon and gunner which resulted in unparalleled accuracy, data-streaming, response-calibration and rate of ire -- not unlike that expected of a Titan's gunnery moderati -- to be one with the weapon. Utilising a unique, if somewhat suicidal, strategy devised by the disgraced Warsmith Idriss Krendl, known as Ironfire, the Iron Warriors were able to attack a fortification during a full-scale bombardment rather than following it. With such a redoubtable force, they were able to utilise the eye of the storm as their protection, striking at the strategic heart of an enemy exposed, an enemy in confusion, while all else about them was turned to ash and screams. With their powerful siege-guns, the Iron Warriors possessed the advantages mind-linked artillery could bring. The Techmarine gunners of each Ordinatus was able to monitor the attacking force's position from the signature of their battle plate, and time the impact of their artillery to clear a path before them of walls, structures, emplacements and enemy forces. It was a feat of transhuman timing and calculation -- a daring technique that was utilised with brutal effect against the defending forces of the Imperial Palace during the epic final battle of the Heresy. Following the conclusion of this epic conflict, and the routing of the Traitor Legions, history does not record what became of this pair of Ordinatii.