Battle of the Bruanii sector The Battle of the Bruanii sector was a battle that concluded the Mugaari Campaign . Prelude . After recapturing Outpost D - 34 . Admiral Flanken tracked the attacks to a Light Calamari cruiser " Lulsla " . Flanken ordered Colonel Vistore to send his Assault Gunboats to rally with his own and assault the Rebel starship in a two - phase attack . Before the assault on the Rebel forces , Secret Order agents became curious about the source of all the Imperial equipment that was emerging from Rebel hands , and tasked the Imperial pilots to be on the lookout for additional stolen arms . The Battle . First phase . The first phase consisted of Colonel Vistore ' s Assault Gunboats from D - 34 attacked the " Lulsla " while it was re - stocking supplies , rallying its starfighter defenses of X - wings A - wings and B - wings and using transports Leven and Modd to begin laying a minefield around the ship . Maarek Stele inspected the containers C440 to discover imperial probes in one of the containers C440 stolen from Outpost D - 34 it was also believed that the probes were also provided by a traitor . After destroying the two transports and destroying all the fighters that the Gunboats were dogfighting . The second wave arrived to destroy all the containers and effective cut off the supply lines . Stele assisted with the second wave and inflicted large starfighter casualties in the process . Thus with the supplies and most of the Rebel starfighters destroyed . The Imperials withdrew to regroup for another attack . The " Lusla " meanwhile then managed to relay a large minefield around the cruiser and relayed whatever fighters were left as its last line of defense in preparation for the next phase of the attack . But the commander knew his defenses weren ' t enough and prepared whatever transports and shuttles he had left for abandoning the ship . Second phase . The Imperials prepared a strike force consisting of transports Sigma and Omega armed with rockets along with two squads of Assault Gunboats arrived to destroy the " Lulsla " . Maarek Stele launched missiles at the " Lusla ' s " warhead launcher s destroying them began clearing the minefield while the transports launched their rockets . The gunboats meanwhile made short work of a Y - wing that was launched from the cruiser . After the cruiser suffered heavy Hull damage two groups of two transports Starway and Gargon and two " Lambda " - class T - 4a shuttles " Derris " were launched out the hangar bay containing most of the crew abandoning the ship . However the Gunboats destroyed all but the ship ' s commander ' s shuttle , disabling it with Ion Cannons . When it was disabled transport " Zack 1 " arrived to board and capture the shuttle . Aftermath . With the destruction of the " Lusla " and the capture of its commander , the Imperials were soon able to pacify the surrounding systems . As impressive as this accomplishment was , it was also the beginning of Admiral Harkov ' s defection to the Alliance . Behind the scenes . In the game there are differences based on difficulty level . This battle follows the storylines of both Battle 1 missions 5 and 6 , following " Medium " difficulty . In Mission 5 , the " Lusla " is invulnerable and cannot be destroyed . If attacked the Lusla launches 5 waves of 5 A - wings from Gold Squadron and 5 waves of 3 A - wings from Yellow squadron . A " bonus " objective in this mission is to destroy 5 waves of 5 X - wings from Blue squadron . This is on all difficulties . In " Hard " difficulty the A - wings in the primary objective increase to 3 and are designated " Red " rather then " Blue " , there are 4 B - wings instead of 2 and the cruiser will also launch 5 waves of 3 additional X - wings as well as the two squadrons of A - wings to make it more challenging . In mission 6 all but 1 of the bonus objectives is to destroy all the mines that the Lusla laid . The last bonus objective is to ensure Zack 1 ' s boarding operation succeeds . In " hard " difficulty , as soon as the Lusla is attacked it launches 3 A - wings , X - wings and Y - wings to attack the Gunboats , the player ' s in particular .