People saying this game plays like CoD have either not played the demo, or not played CoD. Yes, some of the outlying features are the same (levels, killstreaks, and loadouts), but the CORE gameplay, the important part, is VERY different.
CoD is a very slow, "campy" type of game. Playing aggressively in CoD is still pretty passive gameplay compared to, say, battlefield. Crysis 2, on the other hand, is very run-and-gun friendly. Where movement in CoD is slow and deliberate, Crysis 2 is fast-paced and hectic. In CoD, killstreaks are king. In Crysis 2 they're useful, but they're not going to win the game for you.
The tactical elements of Crysis 2 are much deeper than those in CoD. Just by looking at how easy the game is to get used to makes this perfectly clear. I haven't met anyone who did amazing, or even truly enjoyed, Crysis 2 for their first couple games. It's just hard to get used to. There's a lot to take in. At the other end of the spectrum, any bimbo that can pick up a controller can do well at CoD.
Both games are fun and good in their own ways, for their own reasons. Crysis 2 in NOT a CoD clone. I can't possibly stress this enough.
In CoD, I consistently get kills in the upper 20s in TDM and prestiged 7 times in as many days played - well above average. How do you do well in CoD? You pick a spot overwatching a heavily trafficked area and lock it down. You "camp" a large section of the map.
In the Crysis 2 demo, I had a 3.5 KDR and on day 3 (right before I got sucked back into life), I had the highest SPM of the top 25 - making me arguably the best player in the world at that time (
Pics or it didn't happen). How do you do well on Crysis? You run-n-gun. You never stop running around the map. You bring the fight to the enemies. You get shot first but still turn around and kill them. The people I see trying to use CoD tactics I also see at the bottom of the scoreboards. They are not the same game.
Crysis 2 in NOT a CoD clone. I can't possibly stress this enough.