Even though the hour count for completing the campaign is already low, at times the game feels like it's dragging on, repeating the same corridors and same enemies a little too frequently. Toss in a couple of extremely underwhelming boss fights, and you've got a pretty solid campaign, with some good vehicle sequences to break up the first-person action.
2 GHz or faster processor
1 GB of system RAM
7 GB available hard disk space
NVIDIA 6100, ATI X700, or above