After the disappointment of Black Ops (which isn't made by the same developers of the MW series) I was hoping MW3 would deliver an improved MW2 although I was not sure they could as MW2 is (was), in my opinion, the best FPS ever.
I can understand why people are saying it's "like a map pack" as it does play exactly like MW2 but come on what do they expect. One of the greatest selling franchises of all time cannot disappoint millions of fans by re-inventing itself when it is already near perfect. The sales figures speak for themselves, if MW2 was rubbish why was BO the biggest selling game in history!?
MW3 does play exactly like MW2 but with improved graphics, sound, an innovative killstreak systems,revised perks, guns and challenges as well as all new campaign and special ops! For 43 pound every two years I think that's a bargain and have already got my monies worth in playing time in less than a week!
If you didn't like MW2, you won't like this, if you did like MW2, you will love this. If you have never played an MW game, buy this now and decide for yourself!!