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.
A Sydonian Skatros is a sinister cybernetic sentinel, stoic and unmoving until the moment an enemy strays into range of their huge rifle. Mechanical, stilt-like limbs allow them to traverse hazardous terrain and survey the environment, shrouded by a smog of incense-exhaust. With protocol-driven precision and an advanced scanner known as the achillan eye, they lock on to their foes’ weakpoints and unleash pinpoint fire that sows panic and agony – all the better for eroding enemy morale.
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.
The Astra Militarum is a monolithic military force, soldiers and vehicles beyond number spread across war zones throughout the galaxy. Its inexhaustible armies are the Emperor's hammer and the Imperium’s shield. They defend countless worlds from invasion and rebellion, and wrest back lost territory in grand crusades. Faced with ancient monsters and extragalactic horrors, the troops and tanks of the Astra Militarum stand together, acting as one to crush any opposition with brutal and undaunted resolve.
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.
Cadian Castellans are strategic senior officers, often formally ranked as Captains or Colonels. These authoritative leaders of the Astra Militarum's forces bear a panoply of armaments and insignia that mark their high office, wielding their array of weapons as skilfully as they command the countless soldiers beneath them.
Rough Riders are potent cavalry troops fielded by the Astra Militarum – the most famous of which are recruited from the steppes of Attila. Their combat skill and sheer mobility makes these horsemasters a powerful force, whether spearheading an attack or outflanking the foe. When the moment comes to launch a charge, the Rough Riders plunge their hunting lances into the foe and detonate the deadly tips, lending an explosive impact to the assault.
The ranks of the Astra Militarum feature countless regiments drawn from the planet of Cadia – or mustered in the gate world's fallen image. These born soldiers are held by many as the ideal Imperial troops – from freshly-conscripted cadets to seasoned Shock Troops and established Veterans, the regiments of Cadia fight through injury and hardship, laden with all the varied tools of war.
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.
Aegis Defence Lines are barricades comprising crenellated armoured panels that link together in a solid shield-wall. Thanks to their simple design they can be built and deployed at great speed, and are thus ideal for establishing defensive perimeters before more permanent structures can be erected.
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.