Light weight FPS, with a lot of action!
One thing I did kinda like was the switching between teammates, so I could play either of the main characters, that made for some good strategy and a must if you want to get through on the higher levels.
The missions are pretty typical of the Middle Eastern Ops type mission. Go in, shoot up a bunch of bad games, pickup the documents, and get the hell out of Dodge.
If you enjoy some mindless, fast action shooter, this maybe a good rental, but I if you want a more updated shooter, get or replay COD 4, or Ghost Recon Advance Warfighter.