I play cod for fun online, but have gotten pretty good. I play on a specific server usually which has updated stats on it. Now im just curious - what if someone were to use my nick and went on the server and played awful.. could the server differentiate between my connection and his? I know the other person would have a diff IP, but people's IP's change all the time. I heard something about GUIDS... but i dont know what that stands for or what it does?