Firefighter droid/Legends

Firefighting Battle Droids appear to be a variant of the B1 battle droid. They differ from them by being darker in coloration, as well as having a flashing siren built into their heads. They use use hoses that are attached to the ship in order to blast heavy streams of foam on fires, and they are most likely a standard unit on Confederacy ships, with their tasks being the control of hangar fires and similar occurrences.