Unity 3D - Model Failure! Please HELP ME!!!

I've never used Cinema4D but is the scale of all the object meshes within your character the same? It's hard to tell, but in the image it looks like some things have changed size during the import.

This appears to be a texture problem. Are you using polygon selections to map multiple materials onto single objects in C4D? Unity doesn't support such mapping. Unless there's a plugin that add this feature, you'll need to properly UV $$anonymous$$ap the model in C4D or a third party application.