What are your top ten favorite first-person shooters?

[Slimebeast]

1. Enemy Territory: Quake Wars
2. Return to Castle Wolfenstein
3. Dark Forces II: Jedi Knight
4. Dark Forces
5. Far Cry 2
6. S.T.A.L.K.E.R.
7. Jedi Knight II: Jedi Outcast
8. Bioshock
9. Halo 3
10. Unreal