First of all you might not notice this, but you get to be Russian, British, and American like most of the call of duty games. This game is very challenging. A machine gunner can shoot at you five times and your health could be half way gone. It's almost like you have lives in this game like the Mario games. You get a life when you complete an objective. Blood, very little. They might as well just rate it T for just violence. You can hardly notice it. Get this game, its' awesome.