MQ-27 Dragonfire

The MQ-27 Dragonfire (previously known as the Quadrotor) is an unmanned flying drone in Call of Duty: Black Ops II in the mission "Protect P.O.T.U.S.", as well as a usable drone in Strike Force missions and Multiplayer matches. There is a name "Charlene" etched in one of the rotors. It's also seen in Black Ops II Multiplayer Reveal Trailer. After taking enough damage, it falls to the ground and explodes. It requires a scorestreak of 725.

Trivia

 * The name "Charlene" may be a reference to the demonstration of the Quadrotor on the Youtube Channel FPSRussia -Link