Ursarax

The Ursarax (pl. Ursaraxii), or Ursarax Cohort, also sometimes designated Ursurax, are a variation of the far more common Thallax cybernetic troops of the Mechanicum’s Ordo Reductor, although they fulfill a very different role on the battlefield as close combat assault specialists. Both Thallaxii and Ursaraxii are no simple Battle-Automata or mind-wiped Servitors but true cybernetic Skitarii who maintain their sense of human initiative and personality, their bodies thoroughly augmented by the bionic crafts of the Mechanicum forge-wrights. Although developed only during the second half of the Great Crusade, the Ursarax design was quickly ratified by the Martian Mechanicum and by the time of the Horus Heresy, many Forge World Taghmata forces outside the Ordo Reductor used the design.