Fast, fabulous gameplay, addicting, but unfortunately a much too short single-player campaign
First thing I noticed is that the engine is very soft on the hardware compared to the latest games coming out this fall .. My E6550, 2Mb Ram with a 8800GTS runs the game 1280x1024 (max. of my monitor) full details, with very decent frame rate, so I could enjoy all the graphics in full detail. But the best is it's gameplay; fast, very fast action, very addicting ... The storyline is also very exiting and the few cut-off scenes add to the whole picture ...
The sound is not as good, but it's no bad either ... it's just doesn't add anything.
Some moves can be tricky to make, especially if you play it (like me) with a standard 3 button mouse. But if you have a proper mouse you can configure some important moves like frag grenades and switching weapon to other mouse buttons making it easier to play.
Having the possibility to shoot from a choper canon or trying to shoot a terrorist with a super sniper riffle from 900mts it's a great plus .. the whole map of the super sniper is my favourite of the whole game.
The big problem is indeed the short single player campaign .. it's much too short and it's over in a second ...
The learning curve is very fast, even for me that had never played a COD before and the overall game difficulty is very low ..
In conclusion it's a very fast, action full, very fun game to play but if you are not into multiplayer mode it's not worth the money, hence my 8.5 score ... otherwise I'd give it one point more.