Recovery of the Sealion The Recovery of the " Sealion " was a battle fought during the Zaarin insurrection . Prelude . Namuura Din , the commanding officer of the " Victory " - class Star Destroyer " Zeplin " , supplied both sensitive information pertaining to the true status of the Death Star II at Endor and the Missile Boat prototype , the " Sealion " , to the Rebel Alliance ' s MC80a Star Cruiser " Link " . Although the " Link " and its crew had been captured before they could notify the Rebel Alliance of the truth at Endor , the " Sealion " had already been shipped to a Rebel outpost . Upon deducing from an Imperial scout within the region that the " Sealion " has not been relocated because no ships left the station since its arrival , the Imperials arrived at the area to investigate the containers for the " Sealion " , and either retrieve or destroy the container to ensure the Rebels haven ' t tampered with it to find out its secrets . Maarek Stele was assigned to the sole remaining Missile Boat stationed on the " Imperial " - class Star Destroyer " Garrett " , the Tau 1 , to locate the " Sealion " container , with 5 TIE / LN starfighters from Delta Squadron providing starfighter cover for the operation , and 3 TIE / IN interceptors and 3 TIE Advanced fighters from Zeta and Eta squadrons , respectively , will be placed on reserve . Just before the beginning of the operation , the Priest of the Prophets of the Dark Side told Maarek Steele that , due to Darth Vader personally requesting that they confirm whether the missile boat had already been disassembled by the Rebels or not , and as such , stated they will launch a craft to board the container and extract the craft after Steele identifies the container containing the " Sealion " . The Battle . When Maarek Stele left the hanger he helped TIE Fighters engage and destroy Z - 95 Headhunters and R - 41 Starchaser s . Before long a Strike Cruiser " Piimi " arrived to engage the " Imperial " - class Star Destroyer " Garrett " only to be driven of , if not destroyed . Stele helped provide starfighter cover against multiple X - wings , A - wings , B - wings and Y - wings . After dealing with the Rebel fighters , he inspected the Class - B containers Niicee to find each of them containing warheads until one of them had the missing Missile Boat . The " Garrett " then launched the Cargo ferry " Omega 1 " which under escort from Stele , then boarded the container and extracted the prototype . Stele then destroyed the container . Aftermath . Upon locating the " Sealion " , the Imperials deduced that the " Sealion " had not been touched by the time they found it . Nonetheless , because of both the theft as well as Zaarin destroying all of the manufacturing plants for the Missile Boats via bombing , killing thousands in the process , the Emperor Palpatine recalled all surviving Missile Boats still in Imperial possession and placed them into protective storage until further notice , an order that ultimately wasn ' t rescinded due to his death at Endor . In part because of this , as well as Grand Admiral Thrawn requesting Stele ' s skills in the final battle against Zaarin at To - phalion Base , Stele was reassigned to the TIE Advanced Alpha Squadron and sent to To - phalion Base to help Grand Admiral Thrawn hunt down Zaarin , once and for all . Behind the scenes . This mission appears in the 1994 PC game " Star Wars : TIE Fighter " The primary objective of the mission was to destroy the " Sealion " container . However , a bonus objective can be achieved by waiting long enough after identifying it to have the " Omega 1 " cargo ferry retrieve the " Sealion " . This article assumes completion of " Primary " and " Secondary " objectives . The " Bonus " objectives are the destruction of the Nebulon - B2 frigate " Equator " , the XQ4 Platform " Enin ' sd " and the YT - 1300 transport " Opos " .