Repair drone (Red Alert 3)

Repair drones are small, autonomous robots, used to repair vehicles, aircraft, and vessels. They were utilized by all three factions of the Third World War.

Background
The repair drone is a simple, ingenious piece of technology. Capable of performing repairs on friendly units using its built-in tools. They can also remove Terror drones from infected units. Repair drones fly around their parent structure, and will automatically repair any friendly units within a certain radius.

Game effect
In Red Alert 3, all repair drones can perform repairs on all types of mechanical units in range (Vehicles, Aircraft and Ships), unlike in Tiberium Wars, where drones from vehicle production structures and aircraft production structures can only repair vehicles and aircraft respectively.

Each unit can be assigned with only one drone, and the repairing efficiency is quite slow.

Repair drones are available from these structures:

Allies

 * Armor Facility
 * Airbase
 * Seaport

Empire of the Rising Sun

 * Mecha Bay
 * Imperial Docks

Soviets

 * Crusher Crane

Note:
Soviets do not have drones on each production structure, and can only deploy repair drones from crusher cranes.

Counters

 * If the main building is attacked by Desolator Airstrike, repair drones will be temporarily unavailable.
 * The drones can be sucked by the Vacuum Imploder singularity.