You better post to /r/gamedev for example. /r/askreddit is more about general thought- and discussion- provoking (even if it is dumb thought) questions.
I'll say this: unless there's something that already flies how you want in Unreal Tournament 3, or an example elsewhere, it won't be easy. How will it handle?
Hey jfitch, thanks for replying. The accessory meshes do need to deform on their own, for example the feathers on the mask mesh will be boned and bending as part of the animation.