Me and my friends picked it up last night. Its pretty good. The game/levels are different every time you play them. Chapters are long, and zombies always coming at your, and the bosses are pretty tuff sometimes. You have to really "work" together to stay alive cuz if you wonder off then a "hunter", or a "smoker" will get you. You have to make sure you watch your ammo as well.

Overall i think its a GREAT game and very realistic besides the fact that its zombies haha..