This sophisticated battle droid represented a progression in class four droid battle droid technology. Its creation was motivated by a desire to supersede the B1-series battle droid within the Droid Army of the Confederacy of Independent Systems around 20 BBY. Possessing a humanoid form, it gained a reputation as a relentless killing machine.
Upon discovering its presence, the Grand Army initiated an attack targeting the factory where it was manufactured. The battle droid forces eliminated all the clone troopers and returned the schematics to the Confederacy. Due to the inherent dangers, additional copies of the plans were not created. Learning that the B1-series battle droids were slated for obsolescence once the advanced battle droid entered mass production, a specific B1 unit, the one responsible for retrieving the plans, turned against the console, obliterating the schematics to prevent the decommissioning of its fellow platoon members.