It comes out today and it supposed to be pretty damn good. It's a squad based FPS set in WWII. The team went to great lengths to ensure historical accuracy. So you won't see bunny hopping Nazis. I'm getting it for XBOX as it seems more suited for consoles, however it is available for PC next week.
Here's a review:
http://xbox.ign.com/articles/592/592373p1.html