This is one of Phalanx's montages, titled Beat It, for obvious reasons. It features sick gameplay by a halo 2 pro. He is very good at sniping, sticking, getting multikills, getting killing sprees, pwning with the battle rifle, etc. It also features like 12 straight kills in the start of a game. Also, if you watch, he assassinates TheHaloGod! 49 seconds into the montage. Well I hope you'll enjoy it!