I just saw the new reveal trailer for Black Ops II, and I must say...
I love it.
Maybe it's just because this is coming from a Bionicle/Star Wars/Transformers fanatic, but the new future setting that Treyarch has decided to tackle appeals to me greatly.  It's not too far fetched, and I caught a few glimpses of previously seen guns and materials, meaning that Treyarch won't be completely abandoning previous establishments.  It also looks like a select few fan favorites are returning... specifically, our good friend, Woods.  On top of all that, I saw multiple screenshots of my most favorite weapon of all time, and arguably my best weapon in any videogame (excluding MOGUERA).  Making its grand, well deserved, and long awaited return from Call of Duty 4. behold, the light machine gun that solves all the world's problems.

The M249 SAW.