how was he glitching - not that i dont believe you - just curious
I've noticed this a lot on MW3 (PS3). If you look at wireless/signal strength before game starts everyone is all green bars. Once game starts One guy on other team has full bars and everyone else has 1 red/orange bar which makes it lag terribly for everyone with red bar. Maybe a lag switch IDK
Team Death match, run around together as a team of 2 or 3 and as you kill someone, keep running straight, the person you just killed will most likely spawn right in front of you. Just keep running in a circle and you can get 50+ kills easily.