Three types of lethal robots are being developed for FCS. United Defense Industries is creating its Armed Robotic Vehicle (ARV), a 5-ton prowler armed with missiles and a medium-caliber gun turret. It will also provide targeting information for other weapons and seed battlefields with miniature sensors.
Lockheed Martin's candidate is the MULE, or Multifunction Utility/Logistics and Equipment vehicle. Smaller than the ARV, the MULE will follow troops over rough terrain and urban rubble, carrying gear and ammo for infantry squads, carting back wounded soldiers, looking for landmines, or firing antitank weapons or machine guns.