During the GLA War, the USA deployed various types of drones to provide battlefield support. All USA ground vehicles, with the exception of the construction dozer and Sentry Drone, could be upgraded with a Scout Drone, Battle Drone, or Hellfire Drone. Each vehicle could only have a single drone assigned to it. The Scout Drone was a stealthed reconnaissance drone tied to a parent vehicle. It was unarmed, but was equipped with advanced scanners which increased the sight range of the parent vehicle while revealing stealthed units.