Shadow Troopers returned in Star Wars Battlefront, which reintroduced them in the Star Wars canon. Purge Troopers are a specialized class of stormtroopers trained and equipped to assist Darth Vader and his Imperial Inquisitors in hunting down surviving Jedi and other Force-sensitive beings who threaten the Empire.[54][55] Many Purge Troopers are former clone troopers. They appear in the comic series Darth Vader: Dark Lord of the Sith (2018) and the video game Star Wars Jedi: Fallen Order (2019).[42][55][56] Lava Troopers are an elite class of stormtroopers stationed at Fortress Vader on Mustafar.