I agree that without language it would be unrealistic. BUT, I hardly EVER hear this much swearing from a person. This is over-the-top swearing and it IS unrealistic, although who knows, unless you've been in those situations you just never know. Battlefield Bad Company has alot of swearing, and it is def realistic, but even IT doesn't swear as much as this game.
I agree, the swearing was definetely over the top, but somehow slightly humorous how they just throw out the swear words. I just want to steal their cell phones, call their mothers and put it on speaker phone for them to hear how their good little boys talk at work.