HKB-3 hunter-killer droid

The HKB-3 hunter-killer droid was a battle droid produced by Baktoid Combat Automata prior to the Invasion of Naboo.

Characteristics
HKB-3 droids were a easily modified hunter-killer droids. They relied on a Central Control Computer to coordinate their operation. This feature made them effective at tracking a target because they could easily coordinate with each other when sent out in groups. If one droid in a group honed in on a target, all droids in the patrol group could coordinate their fire on the same coordinates.

History
Prior to the Clone Wars, HKB-3s were favored by officials of the Trade Federation to serve as bodyguards and provide general sentry duties. By the time of Invasion of Naboo, they had largely been replaced by the highly-superior droideka. Though a rarer sight than the B-series battle droid, HKB-3 hunter-killer droids could still be seen during the Clone Wars, typically relegated to simple guard duties or patrolling remote planets.