Crysis was and most probly is still to this day one of the most powerful games on the market, when it came out in 2008 no one could play it unless your PC was worth £3000+ lol
Basicly you play as an elite soilder. You have a power suit that was 4 main features
Armer
Strenth
Cloak
Speed
You can only choose one of these abilitys at a time and you by moving curtian ways will reduce the time you have to use that ability
So. If u enable your cloak you cant move to much or it will massively reduce the time you have to use it and that goes for the speed ability which will make you run extremo fast
Stenth will get reduced if you jump to much you have to be clever how to use the suit to get through the game well.
But the stenth abilty mean you can through enemys very far lol
But you have to use the cloak to get that close to the ememy but if have used all the suits power in cloak mode you will have no power for the stenth left etc....
But the suit recharges very quickly..
Aslo the rifles are very custom. adding multiple attchments ie. silencers, sniper scopes, laser pointers etc.
Basicly its the best 1st person i feel as you are not limited with the free roam and the custom weapons, but if you low on ammo you can pick up and use enemy weapons... and use your attachments on them.
Also you could drive enemy hum v's ect....
Homer have u seen there bringing out Fallout Las Vagus!