I'm trying to follow the videos to create an FPS character for UCC using a Mixamo Brian model (as Humanoid). It seems to work except the FP arms get disabled when I hit play and don't show. I used FPS Mesh tool to create: 1) an FBX with just the body & legs (no arms, no head) and 2) an FBX with just the arms. I'm not sure if I did that step correctly and couldn't find any documentation. The attached image shows the hierarchy and in editor (faint blue outline is FP Objects)