Ground Breaking!
its not great because of the multiplayer (which is like a cheaper, not so fun version of counterstrike) and its not because of the story (which is decent, but definatly not the best) and its definatly not because of the graphices (i mean come on, this game is a few years old now!) but its because of the fun you get in each kill. every kill in this game is unique. never before have i gone up to each person i have shot and looked at them to be able to see where i took them down, and how i killed them (and then give them a little extra) in this game each time you kill someone (which you will be doing alot) you will be happy. the level designs are poor, and the ai could use some work, but this game is still remarkably fun.