Commando Droid Captains were advanced Battle Droids used by the Confederacy of Independent Systems during the Clone Wars.
Background[]
BX-series droid commandos, also known as commando droids, were advanced battle droids used by the Confederacy of Independent Systems during the Clone Wars. They were created as an improvement over standard battle droids and had greater agility and computer processing power. Their lithe body structure allowed them to don Phase I clone trooper armor, and their improved durability allowed them to withstand several direct hits from standard-issue clone blasters. They were even able to continue fighting after having their legs sliced off with a lightsaber, in contrast to standard B1 battle droids that could be defeated simply by knocking them over. For improved infiltration capabilities, commando droids were able to alter their voices in order to imitate clone troopers. However, their awkward movements in the armor and atypical responses to orders (usually "roger roger", a common battle droid response) meant that observant individuals could see through the ruse.
Despite their numerous improvements over rank-and-file B1 and B2 battle droids, their production costs proved to be prohibitive for anything but small-scale manufacturing.