MC80 Liberty type Star Cruiser The MC80 " Liberty " type Star Cruiser was an early type of Mon Calamari Star Cruiser put into service for the Rebel Alliance during the Galactic Civil War . Characteristics . Dimensions . Like most Mon Calamari designs , each vessel was individually unique , which was frustrating for Rebel technicians . As with other Calamari designs during the Galactic Civil War , all warships in this group were standardized as much as possible to aid non - Calamari crewmembers , something the artistic Mon Calamari accepted begrudgingly . A common variant of the MC80 Star Cruiser line was exemplified by the cruiser " Liberty " . It had an array of nine engines , divided into three different sizes , located at the stern . A large wing - shaped superstructure was affixed to the main hull on either side , containing weapons pods and tractor beam arrays . Some MC80 cruisers had their wing sections shortened and were equipped with an additional thruster . Offensive and defensive systems . Blisters filled with turbolaser cannons , deflector shield projectors , tractor beam projectors and Ion Cannons were scattered throughout each vessel , many of which were located on the wing structures . The Turbolasers and the Ion cannons possessed advanced targeting systems and were able to track and destroy fighters and smaller craft . While their armaments , which varied from ship to ship , were less than those found on the Galactic Empire ' s mile - long Star Destroyers , their shielding capability was far more advanced . The multiple backup shields and multiple shield generators ensured that a Calamarian cruiser could not only last in combat against more heavily armed opponents but also they had more protection from spacial elemental threats . On " Liberty " type cruisers , the primary sensor array was located on the ventral side of the ship . On ships that did not have the wing shaped structures , an additional thruster replaced the sensor array . Hangar complement . The standard fighter complement on a MC80 was three squadrons . The typical makeup of a three squadron wing on a MC80 included one X - wing , one Y - wing , and one A - wing squadron . At the Battle of Endor , it is possible that the MC80 Cruiser " Home One " also carried a squadron of B - wing starfighters . Bridge . The bridge tower of an MC80 was located towards the stern of the vessel , slightly sunken into the main hull , unlike on Imperial Star Destroyers . The ship ' s main reactor was found right behind the bridge section . The vessels were crewed by various species of Rebel personnel , though the command crew was exclusively Mon Calamari , due to the nature of the bridge display screens being designed for the Mon Calamari viewing spectrum . History . The origins of the design went back to the Clone Wars , when blueprints for a Mon Calamari - designed capital ship were stolen by the CIS . The vessel depicted appeared identical to the MC80 " Liberty " type , thus giving the subclass a military origin . Rebel service . This class was composed of the initial group of starliner s modified for combat duty by Mon Calamari and Rebel techs . The cruisers represented the first line of large capital ships deployed by the Rebel Alliance . The entry of the Mon Calamari into the Alliance ensured that the undergunned and outnumbered Rebel fleet would possess the firepower to deal with " Imperial " - class Star Destroyers , and when grouped , even heavier combatants . This was shown during the climactic Battle of Endor , when a flotilla of Mon Calamari ships attacked the massive command ship " Executor " and brought down its shields . Later military service . At the Battle of Mindor , the twin of the " Liberty " , known as the " Justice " , was used by General Luke Skywalker to fight against Lord Shadowspawn ' s forces in the Taspan system . The cruiser stayed in frontline service for several years in the New Republic fleet , eventually getting outclassed by the MC80B , MC90 , " Mediator " , and " Viscount " designs . Many were reconverted back into starliners , medical ships , evacuation cruisers , etc . During the Yuuzhan Vong War , many of the remaining ships were pushed back into service , quickly being outclassed by the enemy ships . By 137 ABY , the criminal organization Black Sun had at least one MC80 in service , stationed near sector Vigo Lun Rask ' s headquarters over Kaer . The Galactic Alliance Remnant also utilized the aging warships , with one being destroyed by Skull Squadron as it attempted to find the main Remnant fleet . Several were used during the Evacuation of Dac . Behind the scenes . In the game " " , " Liberty " is noted as being 1 , 500 meters long and is presented in - game with a different thruster array . The model used for the cut - scenes however , does portray a similar thruster array to the ILM studio model .