My Rating: 9.8 / 10

Honestly, Infinity Ward has done an excellent job in pleasing the long time fans of Call of Duty. There are so many new things to love and explore in this game. The multiplayer has stolen the spotlight as one of the most thrilling and fun experiences out there. The only complaint I have; the length of the campaign. Yes, it is an epic one, filled with plenty of class Modern Warfare moments. Although, I was able to complete it on Regular (my casual level of play) in a matter of a few hours. Other than that, I say that you are going to have a hard time finding a better bang for your buck out there, seeing as I personally give this game a 9.8 out of 10!

My Rating: 3.4 / 10

My Rating: 8.0 / 10

Modern Warfare 2 in it's entirety is a very well rounded game. The single campaign offers players the next glimpse in Infinity Wards take on the Call of Duty franchise. Although rather short when played on recruit, veteran difficulty really turns up the AI and makes you wanna rage every 5 minutes. It is all worth it in the end thanks to the "Museum". Trust me, push the buttons. And this mode is dependent on the campaign difficulty you finish the game on.Sadly there is no campaign co-op like in COD:WaW, should of learned from this one Infinity Ward!!!!
There is a mode called Special Ops where you can choose single player, split screen or online for two players. The missions for this are fun but rage inducing when put on veteran. Even with two people I felt the rush of rage getting missions completed for those stars. To bad I played them on a friends 360 and not on mine, now I have to do many of them again on my account.
Ahhh Multiplayer, some gamers haven't even touched the other two modes and have stuck strictly to this option since launch date. Not living up to some peoples expectations can be expected and has been voiced in several blogs and game reviews. I feel it builds greatly on COD 4. With added incentives for completing challenges, perk pro, added prestige bonuses, map diversity, game modes, guns, guns, guns and not losing connection when a host leaves. Although some issues have arisen as of late with ammo glitch and javelin glitch. It is to be expected with any new game. I rather enjoyed the ammo glitch to be honest.
Campers, lots of campers, campers with shotguns. Campers with Uzi's. Campers with aKimbo slice (also a nice addition) weapons. corner campers, hot route campers and window campers. I think people have lost the art of FPS. Sad really. 
All in all I like this game like a crack head likes crack. Although I only had to pay for this once.