Vostroyan Firstborn - Infantry Regiments: 5th Vostroyan Firstborn Regiment - The 5th Vostroyan Regiment was commanded by none other than Lord Marshal Graf Harazahn, the supreme commander of the Imperial forces on Medusa V during the Fall of Medusa V campaign. The regiment defended Hive Euryales against the Forces of Chaos' assault tactics before the Warp Storm known as Van Grothe's Rapidity overwhelmed the planet.7th Vostroyan Firstborn Regiment - The 7th Vostroyan Regiment defended Hive Euryales on Medusa V alongside Lord Marshal Graf Harazahn and the 5th Vostroyan Regiment during the Fall of Medusa V campaign.9th Vostroyan Firstborn Regiment, "The Old Irascibles" - Earning their name the "Old Irascibles" through hundreds of battles, the vaunted 9th Vostroyan Regiment served for three and a half centuries during the late 41st Millennium. The 9th Vostroyan became one of the most veteran formations in the Segmentum Obscurus, before finally meeting their match on the world of Nimbosa. Around 790.M41, the 9th Vostroyan defended the Imperial world of Nimbosa against the Tau's effort to expand their burgeoning alien empire and annex the world. The Vostroyan regiment heroically sacrificed themselves to a man defending the factory city of Polia. Inspired by the Vostroyans' sacrifice, the populace refused to submit to the Tau Empire. Reformed after their destruction on Nimbosa, the 9th Vostroyan once again met their ultimate fate during the Fall of Karak Prime in 998.M41. They held the hive city for 18 months against the brutal onslaught of a splinter fleet of Hive Fleet Moloch, valiantly facing a Tyranid swarm that stretched from the base of the city's walls to the distant horizon. With the onset of midwinter, and with the rapid depletion of ammunition and supplies, the 9th Vostroyan knew that they were doomed and vowed to sell their lives dearly. Only when the bulk of the Tyranid swarm had passed into the city did the regiment detonate its nucleonic stack, incinerating the hive, its defenders and an estimated 85% of the Tyranid swarm. With the coming of midwinter, the few surviving Tyranid organisms eventually starved to death and the splinter fleet was entirely defeated.11th Vostroyan Firstborn Regiment - The 11th Vostroyan Regiment served under Lord Marshal Graf Harazahn, supreme commander of the Imperial forces on Medusa V during the Fall of Medusa V campaign.16th Vostroyan Firstborn Regiment - The 16th Vostroyan Regiment helped defend the world of Nimbosa from another attempt by the Tau to conquer it before the Imperial Nimbosa Crusade liberated the world in 992.M41.22nd Vostroyan Firstborn Regiment - The 22nd Vostroyan Regiment was instrumental in the liberation of the world of Kurkaris. They are notable for being one of the very few Vostroyan Regiments to make use of Rough Riders mounted cavalry squadrons (called Hussars by the Vostroyans) in order to better engage the Orks in Kurkaris' thick forests.55th Vostroyan Firstborn Regiment - Like all Vostroyan Firstborn regiments, the 55th can trace its history back to the reconstruction of the Imperium after the Horus Heresy. Generations of Vostroyan men have fought, bled, and died on countless worlds across the galaxy. It is an old saying amongst their number that Vostroyan blood has been shed on every world in the Imperium, and given the illustrious history of even one Firstborn regiment, this may not be too far from the truth. The Firstborn 55th were redeployed to Fort Drusus on Kulth in the Spinward Front of the Calixis Sector about four months after the Orks claimed Avitohol, having already fought with distinction on Ashen, Oriad, and Manus Genita during the earlier years of the Spinward Front campaign. Since that time, the 55th have been relocated to another corner of Kulth every other week, holding back Ork and Severan Dominate incursions before pushing to reclaim some scrap of territory from them. This constant dance of defence and attack has become something of a routine for the 55th, and considerable quantities of scrip and luxury rations, such as lho-sticks and alcohol, have been won and lost by the rank-and-file in the weekly sweepstake, with individual squads betting over which warzone on the planet they will be deployed to next. The regiment’s officers have done little to curb this, seeing it as nothing more than a means for the men to blow off steam and raise morale between gruelling battles—bad blood between winners and losers is unlikely, due to the strong sense of brotherhood within the regiment. The regiment’s commander, Colonel Nikolai Aleksandrov, is well regarded by the other officers in his regiment, not purely because of his rank, but because he is a distant cousin of one of the ruling Techtriarchs of Vostroya, and thus an extremely important member of the nobility. The rank-and-file have little to no interest in this, and most are entirely unaware of his high status, but respect the man’s leadership and prowess -- there is little that Colonel Aleksandrov will ask of his men in battle that he will not do himself, and he is always found at the front, leading the charge or exhorting his men with bellowed warcries.68th Vostroyan Firstborn Regiment - The 68th Vostroyan Regiment defended Danik's World from a massive Ork invasion and a planet-wide rebellion. Last known Imperial records of the regiment indicated that it had dropped to a strength of 28 effective soldiers, all but one of whom were from the 5th Company. The bulk of the regiment was destroyed by the rebellious forces, both through sedition and ambush tactics. The 5th Company, which had previously been attached as a rearguard, suffered severely in their valiant attempt to make it back to Imperial lines. The commander of the 5th Company, Captain Gregorious Sebastev, was officially placed in command of the hardened survivors, shortly before the whole group was seconded to the Inquisition. The eventual fate of these survivors, and therefore the regiment itself, is currently unknown.241st Vostroyan Firstborn Regiment - Nicknamed the "Legia Zaimprowizowany" or "Improvised Regiment," the 241st Vostroyan Regiment is famous for its troops' ad hoc organisation. They are well-known for adopting the fighting style of other regiments as the circumstances dictate. The commander of the regiment when it participated in the Fall of Medusa V campaign was Colonel Illyich Szradislav.1054th Vostroyan Firstborn Regiment, "The Void Shrikes" - Unlike the majority of the Vostroyan regiments that specialize in siege and pitched urban warfare, the 1054th Vostroyan Firstborn Regiment is dedicated to void siege assaults and void combat. This expertise was forcibly shaped several millennia ago when bureaucrats of the Departmento Munitorum selected the 1054th, on the merits of their classification as a siege regiment, for the siege of the fortified void station of the wayward Imperial system lord Korsus Lenx, even though they only had ground siege warfare experience. As a result of overlooking the inherent differences between sieges in the cold depth of space and grounded planetary assaults, the 1054th suffered massive losses, both from the poor command decisions of officers inexperienced in void combat and from equipment and weaponry ill-suited to the nature of the siege. Yet, after months of protracted conflict, the Void Shrikes -- as the 1054th had come to be known -- were victorious. The mismatched men and women of the Vostroyan 1054th had breached the void fortress, dispatched Lenx's personal devotees, and captured the maniacal system lord. Those who emerged from the gutted star fort were the best of the best the regiment had to offer. Each and every survivor stood tall having earned his place as a veteran of the Imperial Guard. From this time forward the veterans of the 1054th and the subsequent replacements their regiment received from their homeworld have served the Emperor as a dedicated void siege force. The members of the 1054th have developed an almost preternatural awareness and possess an acuity and cunning born of years of service in zero gravity environments. Their equipment has become specialized to better suit the environmental requirements. As part of their standard regimental kit, all members are issued rebreathers, and modified Flak Armour that can be made airtight for brief periods of time. While it is hardly as effective as a dedicated void suit, the modified armor is capable of keeping the wearer alive and uninjured for a few minutes in the void of space. This is typically enough time for the soldiers to breach an airlock or pass through an area that has become depressurized. Against the regiment’s doctrines, many of the regimental soldiers make further modifications to their Flak Armour to increase its effectiveness in such situations, although at the cost of their maneuverability. The regiment’s officers don’t sanction the modifications, but in spite of this many of the non-commissioned officers overlook the modifications. They recognize that the changes are generally traditions associated with platoons and companies that have served the regiment for millennia, and attempting to enforce the official doctrines could have serious consequences for overall morale. The Departmento Munitorum has rarely deployed the Void Shrikes effectively because they don’t meet the expectations of other siege infantry, leading to a broad range of assignments that were wildly inappropriate for the regiment’s expertise and training. Sometimes they completely lacked the required equipment to complete an assignment or the regiment sustained high levels of casualties. Examples have included subterranean assignments on mining worlds, missions to make aerial assaults upon an ocean world, and numerous deployments to face rebellious forge worlds. Also, the Departmento Munitorum has been incapable of providing the regiment with the necessary wargear to function effectively, making supplies a constant concern for the regiment command. Supplies are more analogous to shipments made to Imperial Navy crews, needing numerous logistical waivers to be delivered through traditional channels. Consequently, the Void Shrikes attempt to rely upon direct shipments of supplies from Vostroya whenever possible, even though these are infrequent. To compensate, the supply officers of the regiment are exceptionally active in trading equipment with their counterparts in other regiments and even aboard their Imperial Navy transport vessels. Throughout the regiment’s history, it has served on many fronts and most often on its own, in part due to its specialized nature. The practice of deploying the 1054th all but alone has continued unchanged for the majority of its history. Only when the regiment is engaged in a task that proves to exceed their grasp are they provided with the support of another regiment. After several thousand years of fighting on its own against all manner of foes, the Vostroyan 1054th has become capable of functioning in an independent fashion. Their service record is such an honour roll of glory and their assignments so far-flung that in recent centuries, the company commanders of the Void Shrikes have only rarely received their regiment’s orders in person. Communications were maintained through a network of astropaths, and it was only through the undeniable evidence of their success that the Void Shrikes were guaranteed to have received their orders at all. This independence has served as a further complication for resupply of equipment and provisions and replacement of losses by newly trained soldiers from Vostroya. Often, these replacements can take decades to reach their target regiment. In some instances, this is because the units were initially shipped to as many as four locations where the Void Shrikes had been assigned at the time of shipment. By the time the soldiers or wargear finally arrived, the 1054th had been reassigned. Further, newly trained troopers are supposed to report to the regimental commander prior to duty assignment, per standing Vostroyan protocols. With the various series of redirections, this has left some newly assigned soldiers to travel for years before finally reaching their designated post. In a few instances, due to severe losses, some longstanding companies within the 1054th had to be combined or entirely disbanded, due to a successive series of missions with high levels of casualties. In the past few centuries, the 1054th have been actively serving in the Calixis Sector and were recently assigned to assault the starfort Lycurgos, which was under control by the Severan Dominate general Frederique Constantine.