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The OOM-series battle droid,[4] also known as the OOM-mark,[11] was the predecessor to the B1-series battle droid. OOM command battle droids, OOM pilot battle droids, and OOM-series security droids were part of the line. The OOM-series was used before the Trade Federation built their army of B1 battle droids[4] and in the Invasion of Naboo. At some point before the invasion, the OOM-series became[3] a mark of the B1 battle droid line.[11] They were also used throughout the Clone Wars.[9] B1-268 was an OOM command battle droid under the command of General Kalani in the Separatist holdout on Agamar during the early rebellion against the Galactic Empire.[10]

OOM command battle droids, OOM pilot battle droids, and security battle droids all had a different purpose. This was shown by their markings of a different color.[4]


Behind the scenesEdit

The concept of the "OOM-series" was first introduced in Star Wars Legends for the Roleplaying Game, inspired by the designation of commander battle droid OOM-9. The series name was later brought into canon through Star Wars: Build Your Own R2-D2 30.

Star Wars: The Complete Visual Dictionary, New Edition stated the OOM-series was created before the B1-series.[4] However, 2015's Ultimate Star Wars and 2019's Ultimate Star Wars, New Edition both contain battle droid pages that list the model as B1. Therefore, all information on the page applies to the B1 battle droid, but the section also mentions the security, pilot, and command droids[1][3] that The Complete Visual Dictionary treated as predecessors.[4] Additionally, both versions of Ultimate Star Wars state that OOM-9 is an OOM command battle droid and a B1.[1][3] Another 2019 reference book, Star Wars Character Encyclopedia, New Edition, similarly included a battle droid page that listed the droid type as a B1, but it also included information on pilot battle droids.[13] Star Wars Battlefront II and Star Wars: Droidography both also state B1s served as pilot droids.[12][14] The battle droid Databank entry on does not mention a difference in model despite including information involving B1s[6][15] and OOMs.[16] Star Wars: The Rise of Skywalker: The Visual Dictionary later established that the OOM-series was a mark of the B1 line.[11] Given these contradictions, and as both versions of Ultimate Star Wars state OOM-9 was specially programmed to be a command unit for the Invasion of Naboo,[1][3] this article assumes the OOM-series was originally the predecessor to the B1 line, but they eventually became a mark of the latter series before the events of Star Wars: Episode I The Phantom Menace.

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Notes and referencesEdit

Separatist battle droid models
Aqua droid · B1-series battle droid (631 · B1 grapple droid · B1 recon droid · B1 repeater blaster droid · B1 rocket launcher droid · B1-series rocket battle droid · B1 supervisor droid · Firefighter battle droid · Heavy Battle Droid · Jungle battle droid · OOM-series battle droid (OOM command battle droid · OOM pilot battle droid · OOM-series security droid)) · B2-series super battle droid (B2-ACM Trooper · B2-HA super battle droid · B2-RP battle droid · B2 grapple droid · Super battle droid rocket trooper) · B3 battle droid · BX-series droid commando (BX-series droid commando captain) · C-8 saboteur droid · D-wing air support droid · Infiltrator demolition droid · Droideka (Sharpshooter droideka) · DSD1 dwarf spider droid · IG lancer droid · IG-100 MagnaGuard · LR-57 combat/retail droid · Millicreep droid · Pistoeka sabotage droid · Probe killer · SD-K4 assassin droid · Separatist probe droid · Unidentified battle droid model · Viper recon droid
Droid tanks
IG-227 Hailfire-class · LM-432 crab droid · NR-N99 Persuader-class
Droid walkers
Harvester · Octuptarra tri-droid · OG-9 homing spider droid
Droid starfighters
Droid tri-fighter · Hyena-class bomber · Vulture droid starfighter (Unidentified vulture droid variant)
Decimator · Droideka Oppressor · HMP droid gunship · J-1 proton cannon · S-43 enforcer droid · ST-series super tactical droid · T-series military strategic analysis and tactics droid
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