Greetings, Devil Dog! Welcome to the Call of Duty Forums. It looks like you're looking forward to Call of Duty: Modern Warfare II, but haven't created an account yet. Why not take a minute to register for your own free account now? As a member you get free access to all of our forums and posts plus the ability to post your own messages, communicate directly with other members and much more.
I have a feeling that body hits were nerfed. In hardcore I am not getting any kills with the crossbow, and it should be one shot kill to the body.
Or people are cheating. I don't see any other explanations.