You forgot one of the most fun multiplayer shooters ever: Battlefield-series. I've spend so much hours in Battlefield 1942, and I'm greatly looking forward to the XBL remake of three maps (wake, Guadalcanal and Iwo Jima I believe.) And Battlefield Heroes (go look up a trailer of this one it'll appeal to you I'm sure!).
There is just so much appeal to jump from a plane, firing your gun down while landing in a tank to blast your way further through a level!
Ow as for a shooter history lesson:
Look up the origins in Wolfenstein 3D, Quake and Doom.
Father of modern shooters: Half life
First good console FPS is not Halo, it's Goldeneye. Perfect Dark is it's spiritual heir.
The Doctor will see you now
Promoting Lesbianism --> 
