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
Star Wars: The Clone Wars (film) other films. When questioned by "The New York Times" about "Star Wars" merchandising in July 2008, a Pepsi spokesperson was unaware a new "Star Wars" film was being released. On August 15, McDonald's held its first ever Happy Meal promotion for a "Star Wars" film and for four weeks, 18 exclusive toys came in specially designed Happy Meal boxes. Dark Horse Comics published a six-issue digest-sized comic book miniseries. Randy Stradley, vice president of publishing for Dark Horse, said the sudden decision to release the "Clone Wars" film required the company to temporarily delay plans for two other "Star Wars"