Prometheus is constructed from three distinct meshes - the body, the armor, and the wings.  The driving concept is that Prometheus is an incorporeal being, whose consciousness is given form by a mass of nanites, but who also has limited control over the environment around him.  In-game, his armor is driven by Unreal's Niagara System, and is entirely visualized by mesh particles.  All meshes are parented to one skeleton, so animations are seamless.

Prometheus' body and wing components were run through a voxel decimation process, in order to give them a unique CG feel.  We consciously did not use the more traditional method of creating a mesh with perfect edge flows and heavy detail.  This was an attempt to stay closer to the core concept - a being composed of living nanites.