this game is awesome. Only down side is the levels and the vehicles theres only a few of them. Anyway I give a 9 out of 10. And I completed the game in 51 days! try to beat that. There u have a challenge. I also upgraded all the vehicles. Also here's a tip watch out for zombies running at you from behind your vehicle. And also watch out for zombies jumping out at you from the sky. Story: attention attention attention all survivors come to this spot on the map where getting the hec out of here because we can't hold them back any more.