Defense of Ralltiir The Battle of Ralltiir was one of many conflicts which took place on the planet , from its brutal subjugation in 1 BBY to its liberation following the Battle of Endor . The Rebel Alliance ' s Red Squadron rescued scientists from an Imperial blockade during the battle . Prelude . A battle occurred on Ralltiir in 0 ABY , when the Empire received word that scientists affiliated with the Rebel Alliance were hiding on Ralltiir . The Empire sent two Imperial Star Destroyers to blockade and bombard the planet until the scientists surrendered . After rescuing the defector Tycho Celchu , the Rebel pilots of Red Squadron were redeployed to the planet after Celchu informed them of the battle . Although Darth Vader and Palpatine knew that Celchu most likely leaked the information relating to Ralltiir to the Rebels upon defection , the latter felt that their receiving the information was inconsequential . The scientists were trapped under a DSS - 02 deflector shield generator they had developed , which was the only thing protecting them from the Imperials sent to capture them . A force of AT - AT walkers was deployed on the surface near the scientists ' location , while the Star Destroyers commenced an their orbital bombardment of the capital city , causing much of the destruction . Red Squadron members Wedge Antilles and Lieutenant Sarkli , under the command of Luke Skywalker , were sent to help defend the city with T - 47 airspeeders and aid the scientists ' escape . The battle . Defense of the city . As Red Squadron approached the city , one of the pilots managed to trip up an AT - AT using its tow cable system . Antilles then reported that he received a distress call from the scientists . One of the scientists informed Commander Skywalker that they had set up a shield around the city , and told him they had bombs for the Rebels ' use . Skywalker then ordered his craft ' s gunner to prepare the tow cable . Using their tow cables to carry the bombs , Red Squadron engaged the Imperial walkers and transports attacking the shield . Skywalker knew they had to cut off the Imperial advance , and ordered the destruction of the three bridges around the city , of which one of the bridges ' destruction also caused an AT - AT crossing it to fall into the river in the process . During the battle , some of the AT - AT walkers managed to arrive at the main city and proceeded to fire on the city - wide shield . The shield eventually weakened under the bombardment . Red Squadron , thinking fast , proceeded to use the tow - cable bombs to blow up the " heads " of the AT - ATs , ending their attack on the shields . In addition , they also blew up an Imperial transport near the northeast bridge , also recovering an advanced targeting computer for future use . Red Squadron then destroyed the remaining Armored Personnel Carriers and All Terrain Personal Transport s threatening the shield . Ralltiiri soldiers also participated in the defense of the planet . Extraction . After successfully cutting off the main invasion , the Rebel operatives then landed in the city itself to escort five scientists to safety and defeat the remaining Imperial forces . Skywalker commandeered an AT - ST walker , knowing how to operate it due to his earlier participating in the AT - ST Training Program back when he was still a farmhand on Tatooine . As Skywalker did so , Lieutenant Sarkli ran to a nearby Imperial Armored Personnel Carrier , accompanied by a stormtrooper and thereby defecting to the Empire . He and the stormtrooper escort boarded it , and Skywalker realized that they had been led right into the trap . Skywalker then used the AT - ST to fight through an Imperial APC , which disgorged stormtroopers . Skywalker then continued through the city , facing additional seven AT - STs , another APC , Viper probe droids , and stormtroopers on a total of four E - Web heavy repeating blaster s . During his trek through the cities , Luke managed to pick up homing proton torpedo es from a corner . He then came out into a plaza with a statue near the compound ' s Blockade Runner , which was guarded by five more walkers , probe droids , two more E - Webs , and another APC . Skywalker defeated them all , and then blew a hole in the wall to create an escape route to the corvette . He then dismounted and led the scientists to meet with Captain Derlin . Derlin then informed Skywalker that Imperial stormtroopers had boarded the ship . While Derlin was ordered by Skywalker to set up a perimeter around the scientists , Skywalker and the crew fought off the stormtrooper contingent , with Skywalker taking control of an E - Web at one point . Several of the Rebel troopers were gunned down , though . Derlin reported to Skywalker that the Imperials have returned , causing Skywalker to go to the arrival point and wipe out the stormtroope reinforcements with various WEB mounted blasters littered near the stern of the ship . Afterwards , he gave permission for Derlin to leave the planet . The corvette took off and flew past the Imperial blockade , with Skywalker remarking that they just barely managed to succeed in their mission . Aftermath . The scientists were afterward escorted off - world . Following the battle , Darth Vader affirmed to Galactic Emperor Palpatine that their destiny of defeating the Rebellion would be fulfilled . Sarkli , meanwhile , would become one of the Empire ' s most talented spies , gaining personal favor of even Emperor Palpatine , as well as becoming an elite Storm commando . Han Solo , when confronting Sarkli for the last time at Endor , would refer to his defection by stating that he " chose the wrong side . " Behind the scenes . The Defense of Ralltiir was first showcased in the 2003 video game " " , where it was composed of two missions : Defenders of Ralltiir and Extraction from Ralltiir . According to the for " Defenders of Ralltiir " , the level was made to take advantage of light scattering , and was cited as an under - appreciated aspect for the players , especially as it was difficult to animate the environment . In addition , the Defenders of Ralltiir mission was cited to have been inspired by the war in Afghanistan , using images taken from CNN on the war coverage as models for the war - torn and desolate environment . Likewise , the Extraction from Ralltiir level was largely based on World War II , specifically scenes from " Band of Brothers " or " Saving Private Ryan " , and were aiming for a more " bombed - out Berlin " effect , and was also given more detail due to it being the ground portion of Ralltiir . The Blockade Runner portion was also inspired by the beginning of " A New Hope " , and used footage from the films as a reference for the details . Both " Defenders of Ralltiir " and " Extraction from Ralltiir " were originally planned to be sublevels of a single level , but the size of each level , particularly the former , led to them being split up . As a result , a level where Luke Skywalker had to infiltrate an " Imperial " - class Star Destroyer in the aftermath of those missions also ended up cut . A similar cut was later made for Deception at Destrillion . The player could also take out several of the AT - ATs by tripping them up with tow - cables , although because of the mission taking place long before the Battle of Hoth , which was where the strategy was first created chronologically , that can be chalked up to non - canon gameplay elements . However , at least one of those instances was canon , due to it appearing in the beginning cutscene of Defenders of Ralltiir . In order to gain a gold medal for the mission " Defenders of Ralltiir , " the players will need to use the tow - cable bombs on the AT - AT heads to take them out quickly . The game ' s recommends that course of action . Similarly , to get the Advanced Targeting Computer upgrade , the player needs to blow up the Imperial Transport at the northeast landing point before picking it up . This article assumes the player did both . In " Defenders of Ralltiir " , the Shield Generator model from the " Battle of Hoth " level in " Rogue Leader " is recycled as the Shield Generator for the city . The bridges that the players destroy in " Defenders Of Ralltiir " are based off of the Golden Gate Bridge in San Francisco , some shots based around those seen in the trailer for . In the level " Extraction from Ralltiir " , the player comes across a Statue of a Jedi Knight with the logo of the " Jedi Knight " Game Series at the base of it .