3D model reverse engineering

Sonic TH

This isn't a WC mod project so I posted in off-topic but I was wondering if anyone out there has any experience in this area? I am trying to figure out the models from Tachyon: The Fringe, I've got some baby steps in but it never hurts to have a few extra pairs of eyes (or brains). Anyway if anyone is interested in helping out, post or PM me.