I was burned out after the first MW, which I had borrowed back in 2008. COD2 was okay, but then Activision had all that Skinner box crap added and I was eventually like "Why am I wasting my time playing a horribly unbalanced game and unlocking all these weapons?" I think that realization came at around the time I got up to whatever rank you unlock the M14 at and realized that any semi-auto is still outclassed by automatic bullet hoses in that game (unlike the very useful M1 Garand in COD2). I did play some BlOps with my roommate when he got it and there was only one Xbox in the house at the time (mine RROD-ed), but it was the same thing I had played back in 2008, only more unbalanced and with even more grinding for unlocks. It was fun for a day or two, but it got dull quickly.