After Celine Dion cuts her set list short, 30,000 emotionally volatile and estrogen-fueled fans take to the streets with no regard for public safetyand as Nick Mason, leader of an elite counter-gang unit, you're the last line of defense. OK, scratch that part about Celine, because terrorists are the real threat in this standard first-person shooterthey all wear hockey masks, and you shoot them with guns. Bleh!