According to ESRB, this game contains: Blood, Language, Violence
Parents probably shouldn't let their children play this game. It's extremely violent, and if they were to listen too closely to the enemy dialogue, there's a slim chance they could be turned against the system of capitalism that our western society is based on.
Videogame gun enthusiasts will be pleased to learn that this game features one of the only realistic shotguns in videogame history, in that it's useful at a range of over five feet.
Deaf and hard of hearing gamers will be mostly okay—not being able to hear gunshots makes the game a little more difficult, but the combat is still so easy that it shouldn't be too much of a challenge.