Advanced Reconnaissance Commandos - more informally known as ARC troopers - are part of the elite special forces of clone troopers under the Grand Army of the Republic. They were trained by hand-picked Mandalorians and other mercenaries. The thought processes of ARC Troopers were not altered to make them more obedient, allowing for independence and creativity. Their armor is standard Clone Trooper armor with modifications, headsets, and specialized weapons.