The Lambda-class T-4a shuttle Lambda served aboard Admiral Harkov's Victory-class Star Destroyer Protector during the Battle for Honor, during the Galactic Civil War. Shuttle Lambda ferried one of Harkov's officers to the Rebel Alliance Calamari Cruiser Margaret. With his TIE Interceptor, Maarek Stele, having been betrayed by Harkov, inspected Lambda immediately following Harkov's attempt on his life.