Left 4 Dead 22009
4 out of 5 stars
When Valve released Left4Dead for the 360 and PC the fans enjoyed this new type of survival co-op shooter experience. It had guns, zombies and co-op. While it's 4 campaigns were short (about an hour each) they had infinite re-playability thanks to it's revolutionary AI director. At E3 2009 Valve announced it's sequel to hit next November, only a year after the first one. Fans were shocked and disappointed at this…