Techno Union / Legends The Techno Union was one of the Republic commerce guilds . It was a large coalition of high technology firms formed primarily of heavy manufacturing concerns . The Techno Union lobbied the Galactic Senate on behalf of its members ' interests and attempted to ensure fair commerce between its members . In time , the Techno Union would grow to include galactic shipping magnates to further ensure the free flow of goods . The Techno Union was one of the first to pledge its support to the newly formed Confederacy of Independent Systems , and went on to be one of the major suppliers of starships , battle droids , and other weapons for the Separatist cause during the Clone Wars . They also created many research and development projects for the CIS ranging from superweapons to cloning experiments . In 19 BBY , the Techno Union was dissolved when its Foreman , Emir Wat Tambor was slain with the rest of the Separatist Council at the hands of Darth Vader . The company was then imperialized by the newly - formed Galactic Empire . Composition . Baktoid Armor Workshop . Prior to the Invasion of Naboo , Baktoid Armor Workshop was a Trade Federation - owned design firm that specialized in developing rugged all - terrain ground vehicles for use by civilians . Wat Tambor was one of ( or possibly the ) Baktoid ' s executive officers . Raith Sienar was an acquaintance of Baktoid ' s chief designer , a man who was obsessed with tanks . After the Invasion of Naboo , the Trade Federation tried to distance itself from Baktoid . Being the Foreman of the Techno Union and an executive of Baktoid , Wat Tambor associated Baktoid Armor Workshop with the CIS , supplying many of the ground vehicles for the Battle droid forces such as the AAT . Baktoid Combat Automata . Baktoid Combat Automata was the sister company of Baktoid Armor Workshop but the two were very different . As Baktoid Armor Workshop was a public company , Baktoid Combat Automata worked in secret creating battle droids and weapons for the Confederacy of Independent Systems . Baktoid Combat Automata had factories on many planets that churned out countless amounts of battle droids . Haor Chall Engineering . Haor Chall Engineering was one of the companies that the Trade Federation had contacted for the creation of combat vehicles . They were founded by the Xi Char an insectoid race and a fanatical religious order devoted to high - precision manufacturing . Haor Chall Engineerings factories on Charros IV were destroyed by the Republic permanently crippling the company . Sienar Fleet Systems then absorbed what was left of Haor Chall Engineering . Republic Sienar Systems . Republic Sienar Systems was the predecessor to Sienar Fleet Systems and was founded during the days of the Galactic Republic . It funded the Allied Tion Historical Society . During the Clone Wars , the company supplied numerous vehicles to the Confederacy of Independent Systems , much to the disdain of the Galactic Senate . Shortly before Emperor Palpatine took control , the Senate ordered the dissolution of Republic Sienar Systems . The company ' s holdings were also absorbed by the Republic Navy . Kuat Drive Yards . Kuat Drive Yards was one of the many firms associated with the Techno Union before the Clone Wars . They were then contracted with the cloners of Kamino and seceded from the Techno Union . BlasTech Industries . BlasTech Industries was one of the premier arms manufacturers in the galaxy . It left the Techno Union in favor of the Republic prior to the outbreak of the Clone Wars . Corellian Engineering Corporation . Corellian Engineering Corporation was one of the three largest starship manufacturers in the galaxy . CEC , as it was known as , relied on civilian sales rather than military contracts . Although its business is done mostly with the Galactic Republic , it does associate with the Confederacy of Independent Systems for few occasions . Colicoid Creation Nest . Colicoid Creation Nest was the primary droid manufacturing company on Colla IV . It was operated by the Colicoids who developed the fearsome Droideka in their own image . Arakyd Industries . Arakyd Industries was a major manufacturer of droids , heavy weapons , and starships , dating back to the days of the Galactic Republic . History . Early events . In the last decades of the Galactic Republic , Foreman Wat Tambor modeled the Union ' s behavior after the Trade Federation , earning a seat in the Senate and the right to defend itself with a droid army . At some point centuries ago , the group purchased the Foerost Shipyards that once served the Republic Military during ancient times . Following this point , corporate signatories that were part of the Techno Union used the facility for the construction and testing of both new materials as well as propulsion systems . It eventually became the largest construction asset within the organization . The Techno Union was known to have claimed the planet Saleucami in 35 BBY with the intention of transforming it into one of their mechworlds . By the years of the Separatist Crisis , growing corporate competition led to the Techno Union petitioning for bolstering their security forces at Foerost Shipyards . The Galactic Senate approved the request by Foreman Wat Tambor that led to 40 , 000 battle droids being assigned to the shipyards in exchange for continued Republic access to the facility . At the same time , the General Ministry Institutes cut funding for a number of organizations and bodies within the Republic . This led to some groups relying on private funding as a source of credits . The Techno Union was one such private entity that , alongside Kuat Drive Yards , was providing generous donations to the Fondor Academy of Engineering and Design . The reason for the institution being subsidized was because both entities drew a sizable pool of employees from the Academy . During these years , there were rumors that Hego Damask had been meeting with the heads of the various guilds that included the Corporate Alliance , Techno Union and Trade Federation with the goal of brokering a deal regarding trade . When the Separatist Crisis came to a head , the Techno Union was one of the first to pledge its support to the Confederacy of Independent Systems . This was despite the misgivings of several high ranking members of the Techno Union and led to the Galactic Senate expelling their representatives leading to them joining the Separatist Movement . Clone Wars . As the conflict grew into the Clone Wars , the Techno Union was one of the Confederacy ' s key suppliers of starships , battle droids , and weapons . It is clear that at this point the union was split , with some individual members choosing to support the Republic . BlasTech and CEC left , wishing to stay loyal to the Republic , TaggeCo switched to the Republic during the war , while Arakyd remained neutral and sold to both factions . In 20 BBY , the Republic attacked their base on Xagobah . During the course of the battle , Boba Fett tried to assassinate Wat Tambor , only to be stopped by General Grievous who was there at the time . Eventually however , the Republic liberated Xagobah . In the years prior to the Wars , Kuat Drive Yards was a member and experimented with new and larger capital ship designs under the auspices of the Union . At some point , the company split with the organization , with Kuat preferring to create ships for the Republic from that point on . The information gained with these projects , provided the Techno Union with some intellectual clout later on , as a representative of the Union ' s neutral Research and Development Wing participated in a debate on the nature of the mysterious Separatist superweapon that was active early in the Clone Wars . At some point during the war , the Techno Union had prepared plans for an advanced battle droid model at one of the facilities on a planet . Knowledge of this was discovered by the Republic who dispatched Anakin Skywalker and his Padawan Ahsoka Tano to infiltrate the planet in order to steal those schematics . This led to General Skywalker masquerading as a wealthy merchant by the name of trader Kwarelsky with Ahsoka pretending to be his slave . As Kwarelsky , Anakin intended to donate a considerable amount of money to the Separatist cause due to the great expense faced in fielding droids for warfare . After seeing that Kwarelsky suffered from apparent allergies , the grateful Skakoans intended to upgrade him into a cybernetic being which was when Skywalker revealed his true allegiance to the Republic . Padawan Tano in the mean time managed to defeat the droid security forces and steal the data she needed whereupon she freed her master before he could be converted into a cyborg . In 19 BBY , unhappy with the progress of the Separatist Droid Army and in awe of the prowess of General Grievous , Wat Tambor commissioned research into developing alternative infantry . These included constructing cloning facilities in Saleucami ' s underground caverns for the production of the Confederacy ' s own clone army — Morgukai clones trained by Anzat assassins and the establishment of a secret laboratory on Nelvaan to experiment on the creation of mutants and cyborg control devices . However , this base was powered by a siphon generator that drained a captured geothermal crystal , keeping Rokrul region in a wintery state by draining all the thermal energy from the land . The base also transformed all the males of the nearby Rokrul village into savage mutants . However , the base was destroyed by Anakin Skywalker at the Battle of Nelvaan . Following the end of the Clone Wars and the rise of the Galactic Empire , the remnants of the Techno Union were likely folded into the Empire ' s military - industrial complex along with the other manufacturing interests of the defeated Confederacy . Allied planets . Skako . Skako was the home planet of the Skakoan race and the Techno Union . The planet was located in the Core and had heavy atmospheric pressures . Skako was similar to Coruscant by which the entire planet was covered in a dense city . Skako and the Techno Union were represented in the Galactic Republic by Foreman Wat Tambor until seceding to the CIS . Fondor . Fondor was a planet known for its massive ship yards . Fondor favored to the Techno Union and the CIS during the Clone Wars but the population was unsupportive of the Separatist cause and contributed very little to the war effort . Foundry . Foundry was one of the many worlds that the Techno Union used to churn out B1 battle droids prior to the Clone wars . After the Republic outlawed the B1 battle droid , Foundry ceased production of battle droids . The city of Denus was also home to Wat Tambor ' s private estate . Mechis III . Mechis III was one of the premier droid manufacturing planets . The surface of the planet was covered with automated factories . There , the Techno Union constructed many of their droid products . Telti . The moon of Telti was located in the Inner Rim and was covered with countless droid factories . Baktoid Armor Workshop had factories on the moon prior to the Clone wars . Metalorn . Metalorn was a harsh industrial planet that was stripped of its natural resources by the Techno Union during the Clone wars . Wat Tambor had constructed a B1 battle droid factory on the planet that also constructed cortosis battle droids . The Techno Union destroyed the lush forests and dried up Metalorn ' s rivers for the transportation of materials . In 21 BBY Anakin Skywalker foiled the production of the cortosis battle droid and ceased production of the droid . Geonosis . The planet of Geonosis was home to the first capital of the CIS and Techno Union owned droid factories . After the outlawing of battle droids , the Techno Union moved its droid factories to Outer Rim Territories like Geonosis where they remained hidden until the out - break of the Clone wars . Balmorra . Balmorra was one of the Techno Unions B1 battle droid production planets prior to the Invasion of Naboo . The factory was then shut down after the outlawing of battle droids . Foerost . Foerost was a planet located in the Deep Core and was orbited by the Foerost Shipyards , which was one of the Republics oldest and largest shipyards . The Techno Union bought these shipyards in 522 BBY . In 22 BBY , the Techno Union secretly tightened the security of the shipyards , in preparation for the Clone wars . Later during that conflict , the system was blockaded by the Republic . In 20 BBY , the Techno Union broke the Republic blockade through the use of a fleet of " Bulwark " - class Mk I battlecruisers , setting off the epic dBattle of Foerost . This fleet ravaged Sector Zero until it was stopped by a fleet of Victory - class Star Destroyers . Hypori . After the Invasion of Naboo , the Techno Union transformed Hypori into a foundry world . Baktoid Armor Workshop and an entire Geonosian hive created huge underground factories that were kept secret to the Republic until the Clone wars . Tar Morden . Tar Morden was a planet with a Techno Union factory . At the end of the Clone wars , the Galactic Republic seized the factory and acquired many Crab droids , which were sent to Carida . Ord Cestus . In 26 BBY , a mining union strike was ended with the use of killer droids . Techno Union factories on Ord Cestus produced B1 battle droids until shortly before the onset of the Clone Wars , when such production seemingly stopped , continuing in secret on hidden factories such as those on Geonosis . Xagobah . In 21 BBY , Xagobah was conquered by the Confederacy of Independent Systems . The planet was liberated by the Galactic Republic in 20 BBY . It was during the liberating battle that young Boba Fett attempted to collect a bounty on Wat Tambor ' s head , and failed . Nelvaan . During the Clone Wars , Nelvaan was home to a Techno Union laboratory that experimented on the warriors of the Nelvaanian tribes , unhappy with the progress of the Confederacy droid army and in awe of the prowess of General Grievous . Their experiments , based around a siphon generator that drained thermal energy from the surrounding area , resulted in the endless winter experienced all over the planet . The base was destroyed by Anakin Skywalker and freed the mutated yet liberated Nelvaanian warriors in the Battle of Nelvaan . Saleucami . Saleucami came under direct control of the Techno Union three years before the Battle of Naboo . During the Clone Wars , Saleucami was a valuable member of the Confederacy of Independent Systems and was as a result named by Supreme Chancellor Palpatine as part of a " Triad of Evil , " alongside Felucia and Mygeeto . Vulpter . Vulpter was a heavily polluted , industrial planet in the Deep Core and was the headquarters for Arakyd Industries . Mustafar . Mustafar was a volcanic planet which had been a Techno Union possession since 300 BBY . The Techno Union utilized the world as a mining facility to extract many valuable minerals , including Mirkanite , from the lava flows on its surface as well a source of geothermal energy . During the Clone Wars , Mustafar was the last capital of the Confederacy of Independent Systems . Associations . Notable members . Tendir Blue . Tendir Blue was a CIS agent working for the Techno Union . Bunt Dantor . Bunt Dantor was a Skakoan who worked in the Techno Union Research and Development Wing . He created many of the systems onboard a mysterious new weapon for the Separatists . Poggle the Lesser . Archduke Poggle the Lesser , was the leader of the planet Geonosis . He lead the creation and production of the B2 super battle droid . He also built many droid factories across the Geonosian desert . Dua Ningo . Dua Ningo was a Sullustan military officer who lead the Separatist Bulwark Fleet . His fleet destroyed the Galactic Republic fleet blockading the Techno Union owned Foerost Shipyards and began to terrorize Republic worlds in Sector Zero . Wat Tambor . Emir Wat Tambor was the foreman of the Techno Union and the executive of Baktoid Armor Workshop . He was one of the first to pledge his Droid Army to the new Confederacy of Independent Systems . Domb Treetor . Domb Treetor was a Skakoan Appropriations Chief for the Techno Union prior to the Clone Wars . After the Techno Union signed into the Confederacy of Independent Systems , he became a Major in the Separatist armed forces . Main Techno Union scientist . The main Techno Union scientist was the lead engineer on the planet Nelvaan . There , he created mutated Nelvaanian cyborgs as a replacement to battle droids . His project was ultimately killed as with him . Products . Battle droids . B1 Battle Droid . B1 battle droids were battle droids that made up the backbone of the Separatist Droid Army . B1s were perhaps the most numerous — and expendable — soldiers in galactic history , and , unlike most organic soldiers , they were capable of action in hostile environments such as underwater environments or in the vacuum of space . They were designed , for the most part , to defeat their enemies through sheer numbers , not through their ability to think and utilize combat skills ( unlike clone troopers ) . The B1 was a product of Baktoid Combat Automata and the Techno Union . They were the successor of the OOM battle droid , which were more expensive because they had more independent programming than the B1 . OOM - Series Battle Droid . The OOM - series battle droid was the predecessor of the B1 battle droid . The OOM battle droid was a product of Baktoid Combat Automata . While physically identical to the latter , the OOM - series possessed more advanced and independent programming . They were already a common sight in the galaxy before the Invasion of Naboo , serving as security and crew for the Trade Defense Force . They later served in the Clone Wars alongside their more common but simpler B1 descendants . They were color coated for the specific function each droid served . B2 Super Battle Droid . The successor to the B1 battle droid , the B2 super battle droid was an upgrade from the inferior B1 . The B2 possessed better firepower , heavier armor , and independent thought . They also had modular arms for more weapon attachments and specialized equipment for their feet . The B2 battle droids processing unit and signal receptor were located inside the torso of the machine protecting it with its heavy armor . Like the B1 , the B2 was manufactured by Baktoid Combat Automata . " Fastlatch " - class defense droid . The " Fastlatch " - class defense droid was a squat , self - activating droid consisting of a domed , clamshell body suspended by four pincer - like legs . It had twin photoreceptors bracketing a single , central blaster cannon , and an antenna protruding from the upper dome . These droids were known to become more aggressive towards targets the nearer the enemy got to the source of their programming . Though self - activated , the droids could be programmed to avoid attacking beings who carried repellent signal emitters . LM - 432 Crab Droid . Ranging from three to twenty feet tall , LM - 432 crab droids could use its legs to attack infantry in its way . As well as their powerful pincer legs , LM - 432 crab droids were armed with twin blasters . These blasters were capable of rapid fire and a powerful double blast . They were also equipped with a vacuum pump system integrated into their forward pincers , which could suck up and then spit out mud to either clear space for Separatist forces or obscure the visual sensors of enemy forces . This earned them the nickname of " muckracker " . Crab droids also used their front two pincers to whack opponents out of the way or to crush them with their ends . Octuptarra Combat Tri - Droid . The Octuptarra combat tri - droid had a large balloon - like head atop a thin stalk body , armed with laser turrets . It was named after the eight - eyed , gasbag - headed vine walkers native to Skako . They were equipped with three laser turrets as standard , one on each side , below each photoreceptor . Their rotating multi - jointed assemblies allowed them to change facing almost instantly and they could fire from extended ranges , though they were vulnerable in close - quarters fighting . It was almost impossible to approach such droids , as all sides conceivably faced the front . Spelunker Probe Droid . Used for initial exploration of mineral resources , the two - meter tall Spelunker probe droid had four articulated pincer legs for traveling and a repulsorlift to further support the weight of its cylindrical body . The legs could also generate traction fields , allowing the droid to walk vertically and even upside down . The droids , which were able to survive in a wide range of climates , were dispatched to planets via hyperspace pod s , where they would use their sophisticated sensor arrays to locate potential mining spots . Once the droids found an economically viable site , they would begin preliminary blasting in preparation for larger mining teams . The Techno Union modified many of these droids for military service . Tri - Droid . The Tri - droid was an up - scaled version of the smaller Octuptarra combat tri - droid . Chain - fed ordnance launchers replaced the laser cannons of its predecessors , with the reserves of ammunition stored within the hollows of its bulbous head , although some models did retain laser cannons as seen in the Battle of Christophsis . One rocket fired from a single behemoth was powerful enough to annihilate an UT - AT if aimed correctly , as seen in the Battle of Mygeeto . These three - legged artillery droids were formidable in battle , reducing infantry and tanks to rubble . Their rotating multi - jointed assemblies allowed them to change facing almost instantly and they could fire from extended ranges . It was almost impossible to approach such droids , as all sides conceivably faced the front . Droideka . The Droideka was a type of heavy battle droid used by the Trade Federation and the CIS . The Droideka was equipped with two twin - repeating blasters for arms and a built - in shield projector . They could curl up into a " ball form " to quickly maneuver around the area . The droideka was designed by the carnivorous Colicoids of Colla IV , who were displeased by the limitations of Baktoid Combat Automata ' s basic B1 battle droids , and chiefly manufactured on their homeworld . C - B3 Cortosis Battle Droid . The C - B3 cortosis battle droid was a battle droid similar in design to the B2 super battle droid . Their outer shell was made out of cortosis , a substance that could block lightsaber attacks . The black outer shell was clamped to the droids ' frame in formfitting plates . The droids also had the same intelligence matrix as the similar B2 battle droid , however , they lacked the gripping hands of the B2 battle droid , since their arms ended in double high - intensity laser cannons . The ball joint of the wrist allowed the cannons to swivel in almost any direction . The droids could also use their arms to block lightsaber blades . Starfighters . Mankvim - 814 Light Interceptor . The Mankvim - 814 light interceptor was a bulbous , oval - shaped , short - range fighter created by the Feethan Ottraw Scalable Assemblies on behalf of the Techno Union on the planet Utapau . The Techno Union built these tiny , short - ranged starfighters on the planet from local materials . They were hastily constructed in the ancient Grand Halls without any regard for Utapau ' s architectural heritage . The Mankvim - 814 ' s simple construction consisted largely of a reactor feeding power to a high - velocity ion drive . A magnetized rudder tilted the ion flow for off - axis thrust , while side thrusters aided roll and yaw adjustments . The interceptor was armed with twin rapid - fire laser cannons and durable deflector shields for combat . The Mankvim - 814 light interceptor seated one pilot , typically a droid pilot . The interceptor ' s aerodynamic wings , fitted with repulsorlifts , aided with overall maneuverability . Variable Geometry Self - Propelled Battle Droid , Mark I . The Variable Geometry Self - Propelled Battle Droid , Mark I ( also known as the Vulture - class droid starfighter or simply as the Vulture droid ) was a Droid starfighter designed by Haor Chall Engineering , which was founded by the fanatical Xi Char , a religious order dedicated to high - precision manufacturing . It was equipped with four blaster cannons , two Energy torpedo launchers , and an integrated droid brain rather than a pilot . The Vulture droid was used by the Trade Federation and the CIS . It was used heavily throughout the Clone wars . Capital ships . " Bulwark " - Class Mk . I Battlecruiser . The 1 , 000 - meter long Mark I battlecruisers were built for the Bulwark Fleet , which the Techno Union used to escape the blockade of Foerost during the Clone wars . In response , the Galactic Republic commissioned their fleet of Victory - class Star Destroyers prior to schedule to protect Sector 0 . " Hardcell " - Class Interstellar Transport . The " Hardcell " - class was a cylindrical , titanium - hulled vessel just over 220 meters in height , and powered by a cluster of six primary thruster engines . The Hardcell did not use conventional Repulsorlifts for flight , instead using rocket propulsion designed for atmospheric and stellar travel . The transport ' s drive motors were deployed to generate enough retro - rocket thrust to achieve vertical landings at speeds of up to 800 kilometers per hour . A set of three landing legs — sometimes converted into landing claws for operations on low - gravity worlds — were deployed from the underside of the transport to stabilize its landing . The Hardcell - class could achieve takeoff at speeds of 4 , 000 kilometers per hour , though in space , the vessel was capable only of a relatively slow sublight speed of 40 MGLT . The transport was crewed by organics , with crew and medical quarters located in the conical nose . Most had pressurized cabins so that Skakoans could remove their pressure suits . This area also contained an advanced sensor array and secure communications equipment to maintain contact with the Interstellar Stock Exchange . Other . Techno Union HoloDroid . The Techno Union HoloDroid was a droid equipped with a holo - emitter and the ability of momentum . Similar to that of the Trade Federation mechno - chair , the HoloDroid was used for intergalactic communication for important personnel . Skakoan Combat Engineer . Skakoan combat engineer s were Skakoans that worked in the science of combat engineering . They worked on the planet Nelvaan for General Grievous and the Confederacy of Independent Systems . There they performed crude experiments on the native Nelvaanians , turning them into hideous mutated cyborgs using a unique form of microelectronics for General Grievous to call them his elite and for the war . Skakoan Legal Deputies . The Skakoan legal deputies , also known as Skakoan Commandos , were elite Skakoans who served as members of Wat Tambor ' s staff . Two members rescued Wat Tambor from a detainment center on Delrian by decompressing their pressure suits and incapacitating the squad of eight clone troopers assigned to escort Tambor . C - 9979 Landing Craft . The C - 9979 landing craft was a large - sized landing craft built by Haor Chall Engineering for the Trade Federation ' s military forces , and later for the Confederacy of Independent Systems . The C - 9979 configuration was chosen due to its close resemblance to the commercial barges used by the Federation ' s merchant fleet . The ship had four wings with a wingspan of 370 meters . These wings were removable so that they could be stored away easily aboard the massive battleships . They were bound by powerful tensor fields to the fuselage when the craft was assembled for use . Even the strongest metal alloys were unable to bear the immense cargo weight inside the wings , thus making tensor fields essential for the craft . These wings were used to carry vehicles racked in garage channels for maximum loading capacity . When deployed , these vehicles were guided along repulsor tracks to a staging platform . Because of its heavy cargo , the landing craft had a huge antigravity lifting capacity . The landing craft was manned and operated by B1 battle droids . Landing craft were stored in the hangars of warships where they were assembled , serviced , and repaired . Multi - Troop Transport . The Multi - Troop Transport ( MTT ) was manufactured and designed by Baktoid Armor Workshop . Reminiscent of a jungle animal , its reactor and main engines were in the rear , in classic Baktoid style . The MTT could carry 112 battle droids with their standard blaster rifles in a hydraulically powered deployment rack . This rack extended out from the face of the MTT , allowing the droids to be deployed directly into combat if needed . The MTT ' s control room was staffed by a OOM pilot battle droid and a droid gunner / engineer . It was armed with only a quartet of 17kv anti - personnel blaster cannons mounted in ball turrets . A single turret was accurate and powerful enough to target and destroy a starfighter in atmospheric combat . " Ostracoda " - class Gunboat . The " Ostracoda " - class gunboat was a sea - going vessel designed by Baktoid Armor Workshop for the Trade Federation . The gunboat boasted a rotating anti - aircraft laser turret and two twin laser cannons , as well as an energy bomb launcher . It could glide over waterways like the AAT did on land . Single Troop Aerial Platform . The Single Trooper Aerial Platform , or the STAP , was an agile flying machine designed for use by the Trade Federation ' s and Confederacy of Independent Systems ' B1 battle droids . It was designed by Baktoid Armor Workshop . Each STAP was piloted by a single battle droid that stood on a long foot panel , gripping a pair of handles that controlled its weapons and were used to pilot the craft . STAPs utilized by the Trade Federation prior to the Clone Wars tended to be brown in color ; Separatist STAPs were predominantly blue with white triangular markings . Armored Assault Tank . The Armored Assault Tank , or AAT , was formidable ; it was augmented with heavy inches - thick frontal armor that allowed it to plough through walls , and had heavy weaponry . It carried a payload of 55 shells , but once it ran out , the AAT had to return to its carrier to have its bottom section completely replaced , fully recharging its supply . Its crew consisted of four battle droids ( one commander , one pilot , and two gunners ) , and could also carry six B1 battle droids on the hand grips on the outside of the tank The commander typically sat inside the turret of the primary blaster cannon , while the gunners and pilot were positioned in the main hull of the tank . The gunners operated both secondary blasters , and the commander controlled the main turret . The OOM series commander was essential to the function of the rest of the crew ; if the commander was destroyed , the crew would cease functioning , often causing the tank to drift out of control . " Manta " Droid Subfighter . The " Manta " droid subfighter was an aquatic droid fighter craft used by the Trade Federation and later the Confederacy of Independent Systems . It was designed by Haor Chall Engineering , who also constructed the Vulture droid . The sleek torpedo - like droid body was capped in front of a large wedge - shaped diving plane . The forward edge of the plane had an electromotive field , that when merged with repulsorlift - driven supercavitation vectrals incorporated into the subfighter ' s design , resulted in a very fast and surprisingly maneuverable underwater vessel . The twin barrels recessed in the plane sport laser cannons or torpedo launchers , and a few models even featured articulated barrel assemblies that allow both types of weapons on the same fighter . Platoon Attack Craft . The Platoon Attack Craft , also known as the battle droid carrier , was a repulsorsled battle droid carrier created by Baktoid Armor Workshop . The troop carrier was piloted by two battle droid pilots . The vehicle ' s drive unit was adapted from a civilian cargo sled , though it featured a large troop deployment rack behind it . Similar to the deployment racks used in MTTs , the troop carrier ' s single rack could hold 112 battle droids , folded into their space saving configurations . The Techno Union created a copy of the Trade Federation version for their battle droids . Mini - Sub . An aquatic version of the MVR - 3 speeder bike , the mini - sub , adapted by the Xi Char cathedral factories , saw action in underwater battles during the Clone Wars . The mini - sub had armor protection for the droid pilot , as well as a single , large laser cannon . They were transported to underwater battlefields inside specialized carriers . " Droch " - class Boarding Ship . It is rumored that the Techno Union produced the " Droch " - class boarding ship .