Clone ordnance specialist / Legends Clone ordnance specialists , also known as bomb squad troopers , were specialized clone troopers in the Grand Army of the Republic , trained in ordnance disarmament and disposal . In 21 BBY , four bomb squad troopers were deployed on Naboo when the Republic discovered a secret Separatist laboratory , where the scientist Nuvo Vindi had built dozens of bombs that would release an airborne version of the Blue Shadow Virus . The bomb squad troopers , alongside several standard clone troopers , led by Jedi Generals Obi - Wan Kenobi and Anakin Skywalker , attacked the Separatist laboratory to disable the virus bombs and free a pair of prisoners . During the resulting battle , Vindi activated the virus bombs , but the bomb squad troopers managed to deactivate them before they could detonate , while Skywalker and Kenobi captured Vindi . As the bomb troopers were guarding the captured bomb store , Vindi ' s assistant droid sneaked past the guards and reactivated a bomb , causing the explosive to detonate and leak the Blue Shadow Virus throughout the laboratory . However , Skywalker and Kenobi were able to find a cure on the planet Iego . Characteristics . Clone ordnance specialists were specialized clone troopers in the Grand Army of the Republic , trained to disarm and dispose of bomb s and explosive devices . This was often considered one of the most dangerous jobs in the army and required a gentle touch , steady nerves , well - trained dexterity , and a sense of how machines work from the troopers . The troopers served during the Clone Wars between the Galactic Republic and Confederacy of Independent Systems . Besides deactivating bombs , bomb squad members would also safeguard stores of disabled bombs in hostile conditions , such as during the middle of a battle . Bomb squad troopers wore phase I clone trooper armor , customized with orange marking and an insignia on the left shoulder to signify their bomb disposal role . History . In 21 BBY , Republic Senator Padmé Amidala and Gungan Representative Jar Jar Binks discovered a secret laboratory in the eastern swamps on the planet of Naboo , where Confederate scientist Nuvo Vindi had created an airborne version of the deadly Blue Shadow Virus . Shortly after sending a message to Naboo Security Captain Gregar Typho , Amidala and Binks were captured by the Separatist battle droids . However , when Amidala and Binks disappeared , Captain Typho alerted the Republic about the situation on Naboo , and Jedi Generals Obi - Wan Kenobi and Anakin Skywalker were dispatched by the Jedi Council to rescue Amidala and destroy the Blue Shadow Virus . The Jedi took several clone troopers of the 501st Legion with them , as well as four bomb squad troopers . Aboard several Low Altitude Assault Transport s , the Jedi ' s strike team arrived at the eastern swamps , searching for the missing Amidala and Binks . Upon discovering Vindi ' s laboratory , the Republic forces attacked . While Skywalker ’ s Padawan Ahsoka Tano — along with the clone troopers and Captain CT - 7567 — distracted the battle droids , Skywalker left to rescue Amidala and Binks . The Republic strategy was successful : The bomb trooper squad and Kenobi reached the room and found the virus bomb s deactivated . However , at the moment when the troopers arrived in the bomb inventory , all the bombs were activated by the fleeing Vindi . While Kenobi left the inventory to help Skywalker in the capturing of Vindi , the clones began disarming the bombs . After the scientist ' s capture , one virus bomb was taken by Vindi ’ s private droid , however , Senator Amidala managed to find the droid and recover the bomb . After taking the virus bomb , Tano left Amidala to alert the bomb squad troopers . The bomb squad successfully disarmed the bombs before Vindi remotely detonated it . However , one bomb squad trooper found out that a Blue Shadow Virus vial inside a bomb had been removed . Vindi ' s assistant droid inserted the vial in a bomb and detonated it , spreading the Blue Shadow Virus in the laboratory . Skywalker and Kenobi , who were outside of the laboratory when the explosion occurred , obtained a cure for the virus on the planet of Iego . Equipment . Bomb squad troopers carried DC - 15A blaster rifle s with them as protection . As a sidearm , they also were equipped with DC - 15s blaster pistols as well as explosive sensors , ion probes and defusing tools like wire cutters to slice the detonators of bombs . This tool was used to great effect on Naboo , as bomb squad troopers disabled dozens of virus bombs with their cutters . Behind the scenes . Bomb squad troopers first appeared in " Blue Shadow Virus , " the seventeenth episode in the of the . The bomb squad troopers later appeared in the eighteenth episode , " Mystery of a Thousand Moons " . In the " Blue Shadow Virus " commentary , series Director Dave Filoni stated because of production reasons and limited resources while creating the episode , a unique suit of armor for the Bomb Squad was unable to be used . This was due to the fact that there were many new characters in the episode and for production reasons they decided to use the standard armor . Their name was first revealed in the entry in " " . Two Clone ordnance specialists along with an ARF trooper , and a Horn Company Commander were included in the 2011 LEGO Clone Trooper Battle Pack .