Yeah TR's neck is "odd". I was thinking it was the bandana he had tied aroudn his neck though, not the sculpt? I hope that's the case as TR was a cool character and it's lame if they made him a no-neck.
I love the concept of Tunnel Rat (and some other guys from around his era like Hit & Run, who was awesome), I just wish they'd made him a little sharper looking, and ditched the bfg there. I'd be all over a pump shotgun for TR. BBI made a perfect one... Even a sawed off though, would be nice.