After watching a trailer, it looked like a fun action packed game much different from the last COD of duty game I played (COD 4: Modern Warefare). I really saw no difference in quality or gameplay from any other COD game I have played. I assume most people get this game for the multiplayer, which hasn't really changed from any previous game. The story is extremely short and I finished the game in around 4-5 hours.
Painfully bad campaign, it took everything I had just to get through it and it's only about 6 hours long.
Same old multi-player we have had for what 5-6 years now.
The only reason I gave it a 5 and not a 0 is because of Extinction mode. Where zombies has been getting a bit stale lately Extinction turns it around and made it fun again. Love this mode, the only thing good about this game.
All I can say is that I hope people stop buying COD games so that the companies figure out that they actually have to come up with new ideas to get peoples attention instead of just releasing the same game every year.