dooms quakes halo wolfenstein warrock

Call of Duty, 2, 4
Halo 1, 2, 3
Doom 3
Bioshock

I've gotta say Quake III Arena just for the nostalgia.

Apart from that, does Fallout 3 count?

Oh, and Half Life 2 (including the few mods I have)

Halo 1,2,3 Doom I and Quake II.

Hell yeah!
Assault mode ftw.

The Battlefield series, Halo series, Half-Life 2: Ep. 2, Left 4 Dead, Team Fortress 2, Crysis, Far Cry 2, Unreal Tournament III + GOTY + 2004, Tribes series, Doom 3, Unreal, Deus Ex, and Red Faction I & II.

Great game, excellent mix of FPS and RPG.

I liked the SiN series, they were pretty good, shame it died out though

Onion news.

Ontopic: Halo, Call of Duty 5, L4D, Rainbow six 2.

God damn you, you magnificent bastard, I've been searching for that game for years. WHERE WERE YOU HIDING IT.
I think I played a demo of it when I was... 6?
(for those interested- scientist + bring your kid to work day = do not want)
anyway, I like L4D, Eternal Silence, Crysis Wars (played the trial recently, it was great fun, 4.5/5 plan on buying), Zombie Master, and Zombie Panic.
Of those, the only game I'm genuinely good at is Eternal Silence, and then only while flying.

Hahaha yeah! I still play that game. Actually, a lot of people do, it's funny though because I'll play the same 3 people over and over, on this one particular map, Facing Worlds I think it is.

Insurgency mod is my favourite team-based FPS

UT2k4 is my favourite Deathmatch FPS.

im going to have to stick with some oldies!
Doom 1 and 2
Ghost Recon
Halo
Call of duty united offense

golden eye,halo 2-3, tf2, l4d, cod2, cod4-5, fallout 3, cs:s. but im only playing halo 3, tf2, l4d (offline only) and cod 2. the other games i played at a friends house or something.

I'll just list random mods since I need to mention some of them due to their awesome.

Technically I've had these for ages, but I've only recently started playing Q3A mods again.

Quake III Arena

Hunt (You vs Endless swarms of monsters in 3 shapes and sizes.)
Arq (A combination of "Archon" and Quake 3.)
Superhero Arena (Self-explanatory.)
Team Arena (It's technically not a mod, but it seems like one.)

Half-Life 2

Zombie Panic (Humans v Zombies)
Zombie Master (Humans v Almighty omniprescent god that can control an army of zombies.)
Modular Combat (Hl2 becomes a MMORPG)
Dystopia (Awesomeness. AWESOMENESS!)
Empires (FPS meets RTS)