Black Ops 2 Weapons lists:
Between the game play shown at E3 and the single player trailer, we've been shown what weapons / guns might be featured in the Black Ops 2 multiplayer. The guys over on the COD forums were able to spot and screenshot these:
XM8 / M8A1
And may weapon that's will be unlock by http://www.aimjunkies.com by different aimbot features. Another gun that has featured in previous installments. This SMG tends to have low damage and a high rate of fire, with moderate recoil. Usually not a favorite but you never know how Treyarch will tweak it. As you can see from the screenshot above, the Vector K-10 is a weapon that can be picked up from a fallen foe.