I got the game today and it has been GREAT! The campaign is super fun and the online multiplayer is just as cool as the campaign. I think one of the new upgrades are that you can use a lot of the guns that are in the campaighn unlike the first one. In the first one you couldn't use some of the amazing guns that are in the campaign. I also think a great upgrade to the game is that in the online multiplayer there are ranks. On the original, I got bored pretty quickly because there is nothing to work towards. Overall I rate this a game a 10! A great game and a MUST buy!