display only hands and arms on full body model??

I built a pretty cool zombie fps shooter. There's zombie object pooling, object pick up, weapon switching, grande throwing, and even few custom levels. The only problem I'm having is the character model is visible and you can see half of his face and feet. this isn't a huge problem, more annoying then anything. But it takes away from the first person feel. So how would get the camera to only render the characters hands and arms? I want a full body because it will be multiplayer... Any help?