Treachery at Ottega The Treachery at Ottega was a campaign that took place in the Parmel system , undertaken by the Galactic Empire to eliminate the remaining forces of Admiral Harkov , while Grand Admiral Demetrius Zaarin staged a " coup d ' etat " against Emperor Palpatine . Imperial forces successfully destroyed Harkov ’ s flagship , along with other Rebel Alliance forces as Zaarin ’ s own units arrived to interdict Imperial starships , Darth Vader ’ s " Garrett " among them . Vader broke through Zaarin ’ s lines utilizing the new TIE Defender in an attempt to reach the Emperor . Aided by Maarek Stele , the Dark Lord succeeded in saving Palpatine from Zaarin ’ s forces , but ultimately failed at destroying Zaarin ’ s flagship . The Campaign . Trap the Protector . Vader had successfully located the remnants of Admiral Harkov ’ s fleet , more specifically the " Victory " - class Star Destroyer " Protector " . The warship had stopped in a system where Rebel forces had left cargo containers with which to supply the remaining traitorous forces . Meanwhile , the " Interdictor " cruiser " Harpax " entered the system near the " Protector " , activating its gravity well projectors in order to keep Harkov ’ s fleeing associates from escaping . Two flight groups of TIE Avenger starfighters deployed with the " Harpax " , ordered to destroy the cargo containers to halt the traitor ’ s re - supply efforts and protect the vulnerable " Harpax " from counterattack until additional Imperial forces could arrive . Emerging from hyperspace , the TIE Avengers " Alpha " encountered TIE / IN interceptors " H - Delta " barreling down on them , warhead launchers armed . Splitting their flight group , Avengers " Alpha " proceeded to destroy the Rebels ' containers as their wingmen handled the harassing TIE / LN starfighter s , Interceptors , TIE / sa bombers , and Avengers . Imperial starfighters quickly succeeded in destroying the supply cache , moving on to fend off enemy fighters . Avengers " Alpha " rallied back towards the " Harpax " , awaiting additional Imperial forces to arrive . Remaining traitorous TIEs continued to pursue , joined by the Mon Calamari MC40a light cruiser " Warhawk " . Z - 95 Headhunters and T - 65 X - wing starfighter s soon joined the battle , originating from the " Warhawk " , and began attacking the " Harpax " . Moments later the Nebulon - B frigate " Akaga " also emerged from hyperspace , launching more Z - 95s . Imperial TIE Avengers acted swiftly to eliminate the impending threat on Interdictor " Harpax " as Z - 95 Headhunters from the " Akaga " began firing proton rockets and bombs . Avengers managed to intercept incoming warheads with laser cannonfire between eliminating the rest of the starfighter threats . The Assault Transports " Lambda " arrived on the scene , followed by Avengers " Alpha " and " Beta " , who returned to their hangars for the next assault . Destroy the Akaga . With the arrival of the frigate " Akaga " , Imperial pilots from TIE Avenger " Alpha " returned to the field to defend the Interdictor . Expecting the arrival of Darth Vader aboard the " Imperial " - class Star Destroyer " Garrett " , TIE Avengers " Alpha " entered the system armed with space bombs to destroy the " Akaga " . " Alpha " delivered the first devastating blow to " Akaga " , lowering the warship ' s shields with a single volley of space bombs . Prepped for reload operations , the Delta - class DX - 9 stormtrooper transport " Goya " arrived as Avenger ' s warhead magazines ran dry . Avengers " Beta " and " Gamma " covered attack operations on the " Akaga " by intercepting incoming enemy TIEs and Z - 95 Headhunters . Members of " Alpha " flight conducted docking operations until the " Akaga " collapsed under the massive wave of Imperial ordnance . With the Rebel frigate out of the way , Imperial Avengers continued their mop up operations as the " Garrett " arrived . The pace of the operation hastened with Darth Vader on - station ; Imperial pilots reported to the " Garrett " to prep for the next phase of the attack . Retribution . Having removed the threat of Frigate " Akaga " from the battlefield , Imperial starships set forth to destroy the remaining defecting forces , along with the local Rebels . Defecting and Rebel forces had no escape with Interdictor " Harpax " intact , Imperial forces dispatched their starfighters on yet another assault on enemy capital ships . Imperial Commanders expected Admiral Zaarin to arrive soon , closing the trap around any remaining forces . Aided by group " Gamma " , Avengers " Alpha " returned to the fray to eliminate the remaining capital ships . TIE Avengers " Theta " dealt with enemy fighter cover as " Alpha " group delivered Proton torpedoes into Calamari Cruiser " Warhawk " . Transport " CUV18f1 " departed the " Garrett " as Avenger magazines emptied , standing by with additional warheads . With " Theta " occupying any starfighters , " Alpha " and " Gamma " performed bombing runs on the " Warhawk " unopposed , returning to the safety of Imperial Star Destroyer " Garrett ’ s " Turbolaser range to reload as needed . With the " Warhawk " burning in space , Imperial pilots turned to eliminate Victory Star Destroyer " Protector " . Imperial forces overwhelmed the defecting force with unprecedented efficiency , continuous fire from assaulting starfighters reducing the " Protector " to rubble . The Interdictor cruiser " Harpax " came under fire just as " Alpha " group finished off the " Protector " . Two Rebel CR90 corvettes " Triumph " arrived near the " Harpax " , closely followed by Escort Shuttles " Spitfire " , attempting to aid the futile Rebel cause . Imperial fighters scrambled to tackle the incoming Rebel ships , within firing range of the " Harpax " . Interdictor " Harpax " began taking damage from Corvettes " Triumph " as Admiral Zaarin ’ s force arrived . Shocking loyal Imperial forces , Zaarin ’ s fighters and Assassin - class corvettes began firing on Imperial Star Destroyer " Garrett " . Imperial forces did not hesitate ; TIE Avengers " Alpha " armed their Torpedo launchers , unloading on Corvettes " Arditi " . Avengers " Theta " immediately engaged rogue Assault Gunboats escorting Zaarin ’ s Assassin - class Corvettes . Imperial fighters succeeded in destroying corvettes " Arditi " , only to be replaced by Corvettes " Falcon group " , and Assault Transports " Upsilon " , and later Corvettes " BaKaar " . A maelstrom ensued around Imperial Star Destroyer " Garrett " as loyal Imperial starfighters frantically confronted the impeding rogue Imperial assault force . Remaining Rebel B - wings " Blue " still loitered in the system , unnoticed by the distracted Imperial forces . Having already sustained heavy damage , B - wings " Blue " succeeded in dealing the fatal blow to Interdictor " Harpax " . Despite the destruction of the " Harpax " , Imperial starfighters succeeded in eliminating all enemy forces in the system , protecting the " Garrett " , and Lord Vader . TIE Defenders . Upon discovery of Admiral Zaarin ' s plot against the Empire , Lord Vader assembled a flight group for a journey to Coruscant to inform the Emperor . Having worked closely with Admiral Zaarin and currently serving aboard the " Garrett " , Vader selected Maarek Stele to lead his mission to Coruscant . Vader departed the " Garrett " with his assembled team aboard the newly assigned TIE Defender starfighters . In order to reach the Emperor , Vader arranged for Nebulon - B2 frigate " Osprey " to rendezvous with his TIE Defenders from group " Delta " . Before their departure , a member of the Secret Order informed Stele of the gravity of his mission ; Lord Vader must reach Coruscant at all costs , he must be prepared to fight his way out of any trap or ambush . TIE Defenders " Delta " emerged from hyperspace into a trap laid by Zaarin ’ s rogue forces . Interdictor " Harpago " had positioned itself in the system to thwart the departure of Lord Vader with its gravity well projectors . Rogue Assault Gunboats immediately attacked the loyal TIE pilots , even though heavily outclassed . Stele and Vader mowed down rogue starfighters with astounding zealousness . Despite the combined talent of an Imperial Ace and the Dark Lord of the Sith , rogue Imperials had deployed numerous starfighters further delaying " Delta ’ s " assault on the " Harpago " . Frigate " Osprey " arrived during the fighting ; the " Harpago " answered by deploying TIE Bombers to assault it . Fierce starfighter combat had bred expediency ; TIE Defenders " Delta " soon turned on Interdictor " Harpago " with a payload of Proton torpedoes . " Harpago " fought desperately against the loyal Imperial forces , to include exchanging Turbolaser fire with the " Osprey " , but soon fell prey to the notorious piloting skills of " Delta 6 " , Darth Vader , and his wing mates . With the silence of the " Harpago " , Defenders " Delta " boarded Frigate " Osprey " . " Delta " received a payload upgrade to Concussion missiles for the upcoming sortie , as Frigate " Osprey " departed for Coruscant to deliver the news to the Emperor . Rescue of the Emperor . Aboard the " Osprey " , Lord Vader arrived near Coruscant to discover Admiral Zaarin ’ s forces had abducted the Emperor from his " Imperial " - class Star Destroyer " Majestic " . Lord Vader dispatched Maarek Stele to the battlefield , sending him to search for the craft taking the Emperor to Zaarin ’ s Imperial Star Destroyer " Glory " . Once located , Assassin - class Corvette " Mescue " would arrive to rescue Emperor Palpatine while Darth Vader , Maarek Stele and other pilots held off the defecting Imperials . Lord Vader , TIE Defender " Delta 4 " , emerged from hyperspace directly behind the Majestic with Maarek Stele commanding the rest of flight group " Delta " . Escort Shuttles " Hellcat " and " Haven " emerged from the " Majestic ’ s " hangar moments after Vader ’ s arrival . Stele ordered his wingmen to attack Shuttles " Hellcat " following his inspection , not revealing the Emperor onboard . Stele flew past Shuttles " Haven " , locating the Emperor aboard " Haven 3 " . TIE Defenders " Delta " destroyed the traitorous Escort Shuttles , save " Haven 3 " . With the shuttles out of the way , " Delta " group split up to disable " Haven 3 " and attack Imperial Star Destroyer " Glory " . Stele blasted " Haven 3 " with Ion cannon fire until it froze dead in space . With " Haven 3 " disabled , Corvette " Mescue " arrived for docking , liberating the Emperor . While the " Mescue " docked with " Haven 3 " , Star Destroyer " Majestic " limped into hyperspace , evading Zaarin ’ s forces . Stele , along with the rest of " Delta " proceeded to attack the newly arrived TIE Avengers from the " Glory " . As loyal TIE Defenders quarreled with mutinous Avengers , Admiral Thrawn aboard Imperial - class Star Destroyer " Vanguard " emerged from hyperspace . The " Vanguard " launched TIE Bombers to assault the " Glory " . Imperial starfighters pursued the traitorous fighters with determination , eliminating opposing fighters before assaulting the " Glory " in mass . With enemy starfighters out of the way , Imperial pilot s hammered away at Imperial Star Destroyer " Glory " , only to face disappointment . Have sustained heavy damage , the " Glory " fled to hyperspace . The aftermath . Imperial forces succeeded in eliminating the remnants of Harkov ’ s fleet and destroying a Rebel cruiser to boot . The servants of the Empire then confronted the betrayal of Admiral Zaarin and his rogue Imperials . This battle created one of the most challenging enemies loyal Imperial forces had ever fought . Admiral Zaarin , a known technophile , possessed some of the most advanced starships in the Imperial Navy . Despite this , Lord Vader and Maarek Stele had successfully saved the Emperor from capture , returning him to the throne . Stele even received The Emperor ' s Will at a special ceremony on Coruscant after his daring rescue . With the Emperor safe , Imperial forces set out to combat the traitorous Admiral Zaarin . Behind the scenes . " Treachery at Ottega " is the name given to Battle Seven in " " Maarek Stele has achieved the rank of Colonel by this battle ; the circumstances of his promotion are unknown . During this battle Hamo Blastwell , under the alias of Commander Trace , fails in an attempt to steal plans for the TIE Defender from Zaarin ’ s vessel .