User blog comment:Crazy sam10/Call of Duty: Ghosts Teaser Trailer released/@comment-8228104-20130502073610/@comment-3228520-20130502105452

But only this time, it fires nuclear bombs and is unlocked at lvl 4.

It's called ACR 69.9001. It will go great with extended mags, heartbeat sensor and the return of Sonic Boom. Together with the MP7, it is a killer combo.