- "Uh sir, there are clones in the main hanger."
"Impossible. The probability of that is 10,003 to 1."
- ―A B1 battle droid and the tactical droid
During the Clone Wars around 21 BBY, this T-series tactical droid commanded a Separatist supply ship during the Battle of Umbara. The ship was supplying the Umbarans, creating hardships for the Republic. The tactical droid was destroyed along with the supply ship when Umbaran starfighters commandeered by clone troopers flew into the ship's hangar, and blew up the main reactor.