I love the Chernobyl episode in Call of Duty 4 -- extremely dense atmosphere; it's like a realistic version of STALKER without mutants.
The Half-Life franchise as a whole is by far the best story-driven FPS series on the market. It's a must-have/must-play. If you're only buying one FPS game, this is it.
F.E.A.R. was a good one. I also liked FarCry (but I cannot recommend Crysis; it's not more than a FarCry-rip off with enhanced graphics on compatible hardware).
I also enjoyed BioShock, Blacksite and The Darkness a lot (in that order).
The Half-Life franchise as a whole is by far the best story-driven FPS series on the market. It's a must-have/must-play. If you're only buying one FPS game, this is it.
F.E.A.R. was a good one. I also liked FarCry (but I cannot recommend Crysis; it's not more than a FarCry-rip off with enhanced graphics on compatible hardware).
I also enjoyed BioShock, Blacksite and The Darkness a lot (in that order).