I don't know what's wrong: I played it on the 360.
So, I've played it and beat it. Here's what I think.
Pros: It's a fun, challenging game, with a very interesting story. I saw the huge twist of the game coming a mile away, but the way they present it, then reveal it is still rather well done. The characters are very interesting and lively, though sometimes stray a little too off of the realism that Call of Duty tries to stick to and gets a little James Bond-ish. The campaign maps are interesting and fun to play, with a lot of things to do without getting you completely lost. Also, while playing, there are a lot "mini-games", like the AC-130 in MW or the ice climbing sequence in MW2, that are a lot of fun to play. Plus, the "epilogue" is awesome as hell.
Cons: It's short. Not surprising, since it's a FPS, but I finished the game in six hours, and I'm not even the best FPS player out there. Sometimes the levels can get frustrating as all get out (especially the first Vietnam level). As I said earlier, the plot and characters sometimes gets a bit too James Bond-ish. Also, there's quite a bit of anachronism: aside from music and Zork, some of the weapons you get access to don't even exist in that time period, even if you excuse some of them by saying that, as Special Ops, you get access to high tech stuff.
I don't play multiplayer all that much, so I can't judge on that end, but I fooled around with Zombie Mode. That was fun.
So, solid recommend for rent, buy if you play multiplayer.