C2 is not a mix of modern FPS games. It plays like a mix of oldschool FPS games and modern FPS games, and even adds some other things that aren't really seen in many other FPS games (i.e. sideways sprinting). This makes C2 the most unique FPS I've ever played.
"God put obvious limitations on our intelligence, but none whatsoever on our stupidity". -Fr.John Corapi