Clone trooper film series and in the "Star Wars" expanded universe media, a number of specialized trooper units are seen, including elite special forces units such as the 'Advanced Reconnaissance Commandos' (ARC troopers), and Null ARCs, who usually work alone. All clone commandos and ARCs were trained by Mandalorian mercenaries; the elite Clone Troopers are known as Shadow Troopers. The style and color of a clone troopers armor often varies depending on their rank, specialization, unit, or environment, for example, the clone troopers on Kashyyyk wear camouflage green scout-style armour whereas the 501st legion wears standard white armor with blue accents. Another
The Story of Star Wars this album was the closest to owning a copy of the film they could revisit whenever they wanted. The album was also released on compact cassette, 8-track tape, and 4-track reel-to-reel audio tape. It was a commercial success and achieved Gold Record status. The sequel films, "The Empire Strikes Back" and "Return of the Jedi", saw a similar record release. In 2004, the title was used again for a three disc set produced and released for the VideoNow Color personal video player. The first two discs are an overview of the first five "Star Wars" films released: "The Story of