After playing a total of 126 hrs, I could honestly say this is my favorite zombie FPS style game. The game is incredibly fun and takes strategy to master, especially when attempting to play on the Hell on Earth difficulty. New weapons and free maps come out frequently which help keep the game interesting but being charged to own the latest and greatest weapon packs can be a bit of bummer.. Like all zombie based games, it tends to become repetitious. Luckily, having the option to increase the difficulty, play objective modes, and strive for seasonal achievements gives players more challenges/options to keep the interest in playing alive. If I had to rate the game, I would rate it a 9.5/10. Would bang.