The Tech-Priests of Mars march forth at the head of cybernetic legions, protected by barely understood relics of a bygone era, and wielding devastating and bizarre weapons to obliterate their foes.
The empyrically attuned minds of Primaris Psykers are steeled against the manifold dangers risked by unsanctioned wielders of the warp's power. These battle-trained psykers support the Astra Militarum's soldiers with eerie prognostication, wards against enemy witchcraft, and tempests of their own psychic might. Though rarely trusted by their peers, few generals would go to battle without a psyker's aid.
Technoarcheologists are seekers of divine mechanical arcana, driven to uncover that which is hidden, and to analyse its capabilities. Hardened to life on the Imperium’s dangerous frontiers, these priests employ cogitative instincts to detect approaching foes and awaken their servitor guardians to effective modes of attack. Even in the midst of battle, Technoarcheologists guide their servants through vital procedures with a machine-like focus.
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.
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.
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.
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.
Ursula Creed is the Lord Castellan of Cadia – and though the planet itself may no longer exist, the post and her duty remain firmly intact. She is a forbidding and implacable strategist, the heir to the legendary general who fell with his world, and a living symbol of the enduring indomitability shown by Cadia’s armies. Ursula Creed’s superior generalship, forged over long years, has seen her lead Imperial armies to numerous victories against the enemies that threaten the Imperium.