All of the parts of a Commando Droid Captain are primarily dark brown in colour. The leg piece is of the same mould most commonly used for the legs of a Super Battle Droid, and the torso and arm pieces are usually found on Battle Droids. One of the arms is bent and with a hand parallel to the body, while the other is straight and has the hand perpendicular, so that the droid can hold a blaster. A red dot is also printed on the right-hand side of the torso for a more accurate likeness to the droids. A new mould, which is shorter than a normal Battle Droid's head, was designed for the Commando Droid Captain's head. It features a printing design on the front for the droid's photoreceptors and outlining of the different bits of plating. The Commando Droid has additional white markings on its head, distinguishing it from other Commando Droids.
BX-series droid commandos were developed by the Confederacy of Independent Systems to carry out stealth assignments. These droids had infiltration software installed, and were also built to be faster, stronger, and able to take more damage than an average battle droid. Droid commandos were able to effectively use several weapons and tools, including fusioncutters, stun batons, and sniper rifles. Commando droid captains led squads of commando droids on missions. One such commando droid captain led the assault on the Rishi moon. Though the squad initially gained control, the captain and his squad were destroyed when the surviving clone troopers on the moon led a counter-assault.