Hell everyone, I was recently in a lobby with someone in COD4, my favorite game of all time, and everytime I got a kill it SUBTRACT about a billion xp. Who does this? Not only does it put me back to level 1, but I literally CANNOT play in any lobby because I guess at a negative xp level you can't play. I was wondering if someone could either show me how to download the hack or at least invite me to a lobby and get my level back? BTW I'm on Xbox 360