Mw3 wasn't the best cod. Mw2 was.
You could have just sold the game to GameStop and made some money. Instead of destroying it. (Not too smart)
If you play hardcore you need to be aware of your surroundings. You know that it is possible to kill teammates so why would you put yourself in that situation. (Not too smart)
And you made an account in aug 2012 but you make your first post almost a year later... Hmmm. What are your real motives?