They patrol government facilities and serve as bodyguards for Emperor Palpatine and those closest to him.[40] Death Troopers are elite soldiers of Imperial Intelligence which make their first appearance in Rogue One: A Star Wars Story (2016). Undergoing rigorous training and receiving top-secret augmentations which boost their performance beyond human limitations, death troopers are assigned to defend VIPs such as Director Orson Krennic, Grand Admiral Thrawn and Moff Gideon, and take part in operations involving stealth and espionage.[41][42] Their classified armor monitors biofeedback implants in their bodies and can stimulate sensory organs for increased performance, features targeting systems far superior to standard stormtrooper versions, and is sprayed with a polymer called "reflec" that warps electromagnetic waves to defeat enemy sensors. The in-universe origin for their name is that it was specially chosen by Emperor Palpatine to play on rumors of an Imperial project to reanimate dead tissue.[36][43][44] The Star Wars novel Death Troopers, part of the non-canon Legends continuity, revolves around the outbreak of a zombie virus aboard an Imperial Star Destroyer.