The Force-sensitive Shadowtroopers from the video game Jedi Knight II: Jedi Outcast (Legends) come to mind as a particularly cool example. The Death Troopers carry blaster rifles similar to the E-11 as well as SE-14 pistols. They’re not the first stormtroopers to sport black armor. They were the special unit of Imperial Intelligence. – Krennic’s black stormtroopers are called Death Troopers. It was not common for an Imperial officer to wear a cape, though. – While Krennic’s white Imperial uniform might remind you of Grand Admiral Thrawn from Timothy Zahn’s Thrawn Trilogy and the Rebelsanimated series, the uniform was first used by Colonel Wullf Yularen in A New Hope. When the Republic became the Empire, Krennic became the Director of Advanced Weapons Research of the Imperial Military. He was one of the key men responsible for the Death Star project. He first served as a Lieutenant Commander for the Republic in the Republic Corps of Engineers during the Clone Wars and later the Republic Special Weapons Group. – Krennic, played by Ben Mendelsohn, first appeared in Catalyst, as well. It may remind you of the Lambda-class T-4a shuttle, which first appeared in Return of the Jedi. – Director Orson Krennic‘s ship is a Delta-class T-3c shuttle and it’s used as a transport by the Empire. The first was in the Rogue Onetie-in novel, Catalyst, by James Luceno. – That planet is called Lah’mu, and it’s actually its second appearance in Star Wars.