alright everyone, this might already be a thread but i'm looking to find out what everyone's favorite alltime shooter is.  this includes first, third and whatever other kind there is but i would not put a game like re4 in this category since its more like survival horror.  my personal favorite is gears of war but there are a lot of other great ones.  oh, and if you want to explain why, feel free but please don't bash others choices as this is only about individual opinions.  lets hear it people

UT2004 - The game truly takes personal skill to handle.
Half-Life - We are where we are because of this.
DOOM - same as above
System Shock 2 - Beyond amazing, it's so sad it didn't sell too well.
Deus Ex - Same as System Shock 2, except this one sold very well.

Honorable mentions:
Half-Life 2 - Same and awesome gameplay as the original with new graphics and mechanics!
TF2 - One of the best multiplayers ever.
BioShock - Modern System Shock 2.

Can I count Ikaruga, R-Type Final, Bangai-O and Einhander?

Oh nevermind. I just noticed this is in Off-Topic.

Thread locked.