New age, New level of greatness...
Graphically the game is fantastic and shows that despite the new age of Direct X 10, that DX 9 can look just as good. The levels look stunning and when you enter a big firefight, your jaw can just drop though it would be better to keep your mind on the bullets coming your way. The only little gripe you could give is the guns could probably have a little more detail in on them but thats only a very small thing.
Soundwise, the game is perfect and you would think at times, that you are really on the battlefield and not at home playing. Everything sounds like it should be from the bullets to the fantastic communication between your team especially with the SAS levels which are my favourite bits of the game.
Gameplay is really the normal gun and shoot but COD 4 tries to shake things up at time by giving you weapons you might not normally use like RPG's, Javelins and the sniper assassination scene during the Price flashback level. Also since this is the first COD game to use modern weapons, that helps keep things fresh to an extent.
The AI itself is superb for the most parts, with good fluid communication between you and your team and the enemy will try to get around you keeping it challenging. AI won't normally run out and get shoot so thats a good plus but now and again your team will be a bit slow to follow you and may not watch your back properly, which can lead to a few annoying moments.
Online so far is the best of all the COD games and offers more with the new ranking system and more game-modes. However the ranking system is short and perks like Last Stand/Martyrdom have no place in the game. In my opinion I don't know what the point is of having airstrikes and helicopters in a infantry only game with very small maps. speaking of the maps I also feel that some of the them are just too small, even for COD but the online play is still worth giving a go.
Overall despite a few short comings like a short single player and one or two fixes needed for online play, Call of Duty 4 has one hell of an amazing story driven single player with great action both off and online, making this game top dog for 2007 in the FPS genre and maybe even Game of the year.