Camera drone
From Halopedia, the Halo wiki
A Camera Drone is a type of sound and video recording device used by Humans. It is probably used for playback on civilian-owned video displays as entertainment or acknowledgement on current events. The Camera Drone resembles a Forerunner Sentinel. They appear to hover on several air propellers. These are probably used to broadcast the film back to Earth.
Apperances
You can only see this device once in the game. It is shown in the Halo 2 Cinematic Cutscene Home Field Advantage which takes place on Cairo Station.
