I found it to be pretty fun, but I do have a few issues with it. The AI was challenging but, not how you would like. They seemed to have superhuman senses as if they could sense your presence through walls and objects. I also found myself getting stuck in places where you normally wouldn't be. But, all in all, I love the realistic physics with the weaponry. It only takes one or two bullets to die, and that creates a drive for strategy and more careful maneuver.