User blog comment:Crazy sam10/Black Ops II ‘Zombies Guns’ revealed in ELITE/@comment-129.115.2.4-20121105190317/@comment-5596583-20121105204130

The M4A1 is not confirmed in the slightest. Sure, it's in a promotional poster, but that's like saying the M9's in MW3 because it's in the guy's holster on the cover. Not confirmed.