Great action in a tired genre
Although the WWII genre is tired and boring, Call of Duty 2 is still worth picking up at your local Gamestop or EB Games in the bargain bin section, if not for the action. After all isn't the gameplay the reason to play FPS's?
The only complaints that I have with COD2 is that the player will catch onto walls easily. Especially annoying when trying to run away from grenades or simply trying to avoid a nasty fire fight when turning around a corner with a bunch of angry enemies with itchy trigger fingers. Not fun.
The AI is suprisingly helpful. They're not the brightest group of team mates in the world as they seldom make very good doors as they block your path every so often, but they do help out when finding and locating enemies. It is especially frustrating when the grenade indicator doesn't appear on-screen. It's not fun when the sound of the grenade bouncing around can be heard but not seen.
As a whole Call of Duty 2 is worth a buy. Just don't expect an exciting plot twist or anything.