The Leman Russ is the primary battle tank of the Imperial Guard, forming the spearhead of countless armoured columns. Those enemies that do not fall to the bombardment of their cannons and numerous hull-mounted guns are crushed mercilessly beneath their heavy treads. These reliable and formidable tanks can be found in nearly every Astra Militarum regiment in the galaxy, and have become synonymous with the Imperium's fury.

The Knight Preceptor is a Questoris-class close-ranged powerhouse. Its design is intended to exemplify the core tenets of the Code Chivalric in battle

Dominus-class Knights are among the largest available to any Knight house. These walking fortresses march relentlessly into the fight, armed with weapons capable of levelling entire armies, gunfire scattering uselessly off their ion shields. The Knight Valiant defeats its enemies through overwhelming firepower at close range. Its conflagration cannon unleashes a searing, inescapable firestorm, easily annihilating incoming hordes and smashing through opposing battle lines, while its thundercoil harpoon can destroy tanks and monsters with impunity.

Small and agile compared to their lumbering kin, Armiger-class Knights are still war machines of incredible power. Piloted by young squires or lowborn pilots, Armigers act as mobile support and outriders to keep larger Knights from being surrounded, receiving commands from their Noble lords through the Helm Mechanicum. Among these nimble engines, Armiger Warglaives are fearsome hunters of enemy armour, armed with a deadly close combat weapon and a thermal spear that can melt through the toughest bunkers.

Led by the irrepressible Colonel-Commissar Ibram Gaunt, the Tanith First and Only are a reconnaissance regiment without peer in the Astra Militarum. So named for being the only survivors of their ill-fated homeworld, the soldiers who became known as Gaunt's Ghosts are expert woodsmen marked by their distinctive camouflage cloaks, which allow them to perform feats of incredible stealth worthy of their moniker.

Ordnance Teams crew some of the largest human-portable weapons fielded by the Astra Militarum. From bombast field guns that lob heavy shells over buildings and intervening squads, to the barrage of warheads fired from malleus rocket launchers, or the searing energy lances unleashed by heavy lascannons, these Field Ordnance Batteries are powerful assets to any general.

The Adeptus Custodes are demigods of war, sworn to defend the Emperor until death. They are among the most elite warriors in the Imperium, clad in auramite armour and wielding some of the finest weapons ever created by Humanity.

Commissars are ruthless officers embedded throughout the Astra Militarum, charged with maintaining the morale, discipline, and loyalty of their regiment. With the power to summarily execute any soldier found wanting in their duties, they are feared, brooding figures. A Commissar's devotion to the Imperium is without doubt, and they fight with fanatical bravery – inspiring the same fervour in those who fall under their watchful gaze.

The Astra Militarum are the backbone of the Imperium's largest armies. They are the men and women who hold the line, a bulwark standing between Humanity and a nightmarish galaxy of horrors. Amongst the Astra Militarum's massed regiments, the born soldiers of Cadia are some of the most disciplined warriors to be found – tough marksmen trained for a lifetime of grim duty.

The Adeptus Mechanicus march to war as a disturbing fusion of flesh and machine, ruling Tech-Priests and fanatical cyborg followers raising modified voices in binharic praise of the Machine God. Purge Corps Deltic-9 are equipped to scour the contamination of enemy presence from locations of strategic or exploratory importance, employing cybernetic speed and terrifying weapons. Cavalry and winged Pteraxii unleash gouts of purging flame, before radioactive Skitarii bring up the rear to reclaim whatever remains.

The Adeptus Custodes are an army unlike any other. Each member would be considered a mighty hero by lesser warriors, capable of besting entire units or even armies of weaker foes. When they assemble in larger groups, they are a gleaming golden host, their speed and agility combining with frightening strength, skill at arms, and tactical brilliance.

The Adeptus Mechanicus are the fanatical worshippers of the Machine God of Mars. For thousands of years the robed priests of the Machine Cult have presided over the fabrication, maintenance, and preservation of Humanity’s surviving technological wonders with reverence and ritual. Led by Tech-Priests whose weak organic flesh has been replaced with metallic augmentations, their armies fight to defend forge worlds and strike out across the galaxy in search of ancient archeotech.