CSM obviously did not explore all of the features of this game. If your kid uses no settings to play this game, then it should be M and don't let them play it. But you can turn off blood AND language with the Graphic Settings and before you start the game it will ask if you want to remove graphic content, like blood. It also cuts out violent scenes with darkness. With all of this taken out, the game deserves a spot in the T rated section. Just make sure your kid has adjusted to these settings. Like I said, CSM really did not explore the options on this. This can all be taken out with a few button clicks. Plus, it can lead to some great family times. My whole family (2 sons, and a wife) all love playing Zombies together. And their grades have gotten better and they've become more responsible if you put down guidelines on the game. Treyarch, thanks for giving us family fun and getting our kids to do better in school. Common Sense Media, I said it twice in this review but, you really need to revise this, making me go through all this trouble because I believed you guys when you said it. I rate this for kids 13+ because when adjusted, it fits as a T game, and it is the age of my sons.