User blog comment:Crazy sam10/Call of Duty: Black Ops II Xbox Community Update (5/23/13)/@comment-5655921-20130524122933/@comment-1263839-20130525231729

@Anon right beneath me:

SMGs: The MP7 ARs: The ACR 6.8 Snipers: The Barret. Shotguns: The USAS Secondaries: FMG9 (with or without akimbo tbh)

In both games you can use the other weapons of each class just fine.