This is a really bad slip up, and i cant believe no one noticed it... Towards the end, when the Jewish soldier is fighting the German Hand to Hand, he bites the German's chin, and blood starts coming out, but when the German gets the upper hand and is on top of him, there is no blood at all. I thought that one was really obvious.
LOL, I'm sorry, that's just too funny.. biting the chin.. then again, if my life was in such peril, I guess I'd bite anything.
Like the fellows above said, it's the hand