Simply INCREDIBLE! Best game I've played in YEARS!!!!
-- in terms of "gameplay", this is NOT your father's FPS! The visuals are stunning and smooth as glass. The environment takes blood and gore splatters all in stride and very convincingly. The weaponry is probably the coolest I've ever played with. You really FEEL like you're shooting a machinegun or a shotgun! And I absolutely LOVE the way that the guns generate volumetric smoke from the gunfire (you have to move or wait b/c you can't see through the "fog of war"). The enemy's "squad based" AI tactics are fantastic! They will pin you down, flank you, and toss grenades.... all acting as a single "squad". These are not "moron cannon-fodder", they are very, very smart and sometimes tough to beat.
-- the action/kills are sometimes plain out gruesome. Alot of development time was spend figuring out how to use the shotgun to blow people's limbs off (or in half!) or tack guys to a wall with the "nail gun"
---- From the first scene through the entire game, you will be sucked in 110%. It's got a great story line that you shouldn't ruin by reading any FAQs. This is really a hardcore FPS with very realistic blood/guts. This is also NOT a game for kids!!!!! The enemy has called me a "Motherf***r" so many times I can't count and you definitely don't want your 12 year old "nailgunning" someone through the head and sticking them to the wall.
---- I can't say enough good things about this game. It hits the mark on every level and will alternately freak you out and gross you out on a regular basis. I'm completely addicted :o)