Okay, here are some of my thoughts about the game:
Campaign: I finished the whole campaign on medium, and it was fun, the story was classic Tom Clancy, it never got too repetitive, unlike endwar. I would have liked for it to have been a bit longer.
You can do co-op with 3 other people.
Multiplayer:
Okay, the multiplayer could have a lot more variety. You can only do a team deathmatch but you can change the settings to change it a bit, but that's it for multiplayer pretty much.
I would have loved to see an escort game where one team escorts a plane, and another team attacks it. Or where one team defends a building and another attacks. Or where one team defends a convoy of trucks, and the other team attacks. Or a capture the flag game, or a race. I hope they will add some more game modes. :/