The Missile and Space Systems Maintenance Career Field encompasses the skills, functions, and techniques used to acquire, activate, assemble, transport, install, and maintain missiles and subsystems; acquire, activate, and supervise assembly, transportation, maintenance, inspection, modification, and launch processing of spacelift boosters, satellites, and subsystems; launch, control, track, and recover unmanned air vehicles (UAV) and related equipment; assemble, operate, fabricate, install, test, and troubleshoot specialized research and development (R&D) systems and subsystems; acquire, activate, inspect, maintain, repair, calibrate, modify, and manage these actions on related missile, spacelift booster, satellite, UAV, and R&D facilities, support systems, test equipment, and subsystems.