A controllable drone would be a great addition to Deadside.
It could be used to scout enemy bases or monitor your own base during a raid. The drone should require a battery, have limited speed, and lose connection when it leaves its range.
When scouting enemy bases, the range should be limited to around 50–100 meters to keep it balanced. Other players should also be able to shoot it down.
For nighttime use, a flashlight could be attached to the drone, allowing players to explore dark areas while making the drone easier to detect.
A matching roof hatch would make launching and landing the drone inside the base more convenient.