The unidentified Tarkin Initiative base was one of the Tarkin Initiative's bases. Sometime before the secret mission to Geonosis, the base constructed BT-1, an assassin droid. The droid, revealed to be homicidal, killed everyone in the base and then set it to self-destruct, as the droid jettisoned into space. The droid was at some point after the destruction found by Doctor Aphra and reactivated, now with a readjusted behavior and it was ordered to serve under Darth Vader.
- Darth Vader 3: Vader, Part III (First appearance) (Flashback)