Fun FPS game with nice graphics. I did run into a few problems, though. If the game is played in windowed, the mouse can go out of the game. The shooting was also a little weird, and it was hard to tell whether or not I was hitting anything because there was no feedback of the enemies getting hit. It also seemed like enemies were shooting me through some of the walls. Figuring out where to go was sometimes confusing, though it was usually obvious.