WaW was just a bad game. The game was just too dark. Which made for campers to camp even more. The tanks were just a bad idea that Treyarch has had a boner for. Every game they have done before Black Ops contained a tank. COD 3 had tanks and they were stupid. I mean look at it this way you run around with no armor and just the shell exploding near you kills you. At least in Halo you have armor and you take damage it isn't an instant kill.