If you are going to use the mouse as a control, DON'T INSIST ON USING WASD INSTEAD OF ARROWS!!!! If you are left handed, this gets uncomfortable very quickly on a laptop. ONE STAR.
Only problem I have is the fact that the bad guys will not even shrug at the corpses of their mates you have already killed and will stand there like, oh, targets.
This game expects you to use WASD and the mouse at the same time. If you are left handed, this is not as easy as the arrow keys. I can't find a way to change the control keys, so and automatic 1 star rating.
This game discriminates against left handers. To change weapons, I have to either take a hand off the mouse, or a hand off the arrow keys, during which time I die.