The MZ360 "Mini-Gun" is a fast-firing Agency weapon. The Spin Up may take some time before it finally shoots at full speed but the devastation is incredible. It comes with a large supply of ammunition. This weapon may not be of favorable use to you Agent, as you can only use this weapon after purchasing the "Getting Busy" Bonus Pack it carry's up to 1000 ammo and does serious damage to those like Generals or Kingpins.
Crackdown 2 has a similar gun like this called: Turret Machine Gun.