You may or may not know that I'm somewhat of a gamer.  I thoroughly enjoy first-person shooters.  One of them I play on a regular basis is Call of Duty: Modern Warfare 2.  It's pretty fun to hunt down terrorists and play the Ground War mode with 12 on 12 action.  I enjoy the game a lot, but I think these guys beat my enthusiasm by just a little bit.  Check out their tribute video (make sure to watch both part 1 and part 2):

http://www.youtube.com/watch?feature=player_embedded&v=rzQMGMuD1sU