@hard_rock:The game is a mix of stealth and FPS in terms of gameplay.You can either run & gun (& get killed that way) or go tactically & avoid many unwanted enemies.The AI is so cunning that it just won't behave in the traditional manner that every other FPS game does.They just don't stand there firing at you till we nuke them off.They run & take cover,check our position,throw grenades & do endless stuff.That's the beauty of this game.
Visually the game stands apart from all of the other FPS's.Reason:Crytek's brilliant level designs & environment rendering.For a game which came out in 2004 & still gives a strong competition to current crop of games is something to write home about.The water effects are the best aspect & feels extremely life like
a la Half Life 2.Heck you can even shoot fish in the water & they die.

The game has some extreme physics detail too.If you have seen a few gameplay videos of Crysis (based on Crytek 2 engine) then you could imagine how reputable these developers are.Trust me it's a game which you shouldn't miss at any cost.