Terrible
I have only played the first couple missions, but I am already thinking of deleteing it. I dont understand why anyone could possibly enjoy this game, I just can't seem to find anything good about it.
Being in a team is alright, but its not done very well, say you switch to your other teamate, and you forget to rightclick to tell him to follow, later on you die, you have to run all the way back there with your other guy. Even if you had just set follow on the one guy then changed, it doesn't swap to the other guy, he just stands there staring at the wall.
Really the only good thing I can say about it is that each mission you do you get upgrades, which is interesting, because I dont think it has been done that often. But everything else is just disastrous, so don't even think about buying it.