UOA-IIIs, or "Scions", are combat-oriented machines seemingly fabricated when the precursors still had access to high technology. Their programming is hostile to all alien life, perhaps since at their creation, the entire ecosystem was trying to kill them. UOA-IIIs are armed with what appears to be monomonecular blade and, most worryingly, an automatic plasma repeater capable of melting away an entire armoured vehicle in a burst. Their plasteel alloy armour allows them to take copious amounts of small arms fire and shrapnel until one lucky hit destroys their central processor or fusion powerplant.
Scions seem to be a "light" type of combat robot fabricated to wage war on the surface against the Ents, and can rarely be found within Black Factories.