Urban Terror is like … Counter Strike ! But … Better !
[http://www.urbanterror.net/](http://www.urbanterror.net/) A quake 3 total conversion. Try it ;) .
EDIT: BTW, check out some of the screenshots, it just might sway you away from CS. New game modes, like bomb mode, (Have to diffuse a bomb), set in an Urban environment, this is way up on my top games list.