The Call of Duty series is a mega hit from World War 2 to Vietnam to World War 3 and does all of it well lets break the package down. The Campaign is magnificent with it finishing up the 3 part series to it, it ends in this though. It takes you around the globe and makes it work really well. Then Infinity Ward has brought back the Spec Ops mode which is better than MW2's Spec Ops. Alot more missions and they have included a new mode called Survival, much like Zombies from Black Ops and World at War accept it is enimies with guns and there not undead! Then Multiplayer is amazing and the best in the franchise it doesn't have the currency system but it has weapon profficicnies and weapon ranking and three differnt package things Assault, Support, and Specalist. So Call of Duty Modern Warfare 3 gets a 10 out of 10.
Don't get me wrong, this game is a lot of fun. Me personally, I am getting bored with CoD games, for the most part. The changes are good, but few and far between. Battlefield 3 is light years ahead of where CoD should be already.