LOL ... was still kind of trying to work out if you were a real person ;) let alone someone that might be into video games ;).
Quake iii arena (you can look it up! :)), unreal tournament, counter-strike (still around), Rune. Used to write software at a games company, and we'd play theses all the time! But never got into console games like Halo, so I couldnt tell you the characters in that one hehe :)