I REALLY wanted to like this game, but there's just way too much wrong with the single-player campaign (which I just finished).
1. it's more on rails than CoD not only can you only move in "two directions," you can't even open doors or climb ladders unless it's a part of the script you have to follow.
2. I wanted to empathize with what was going on around me, but the game never really let me see it; it was too busy shooting at me all the time.
3. Sever of the "setpiece scenes" were so hard scripted, if you did not find that "one way to succeed," you were just going to die over and over and over again.
4. Length: WAY TOO SHORT. the entire campaign makes CoD:MW2 look like War and Peace by comparison. I finished it in 5 hours. It probably would have been 4 if I didn't have to keep repeating their "puzzle" sequences over and over.
Some other general things: they spent a lot of time adding physx support, which really did little to the game whatsoever. 2.5 / 5