BT-13 "Beetle" has had every external component painted black as night, with attempts to minimize the brightness of external lights and features. This allows this BT-1 Assassin Droid to more easily blend into the shadows and darkness unseen.

BT-13 "Beetle" has recieved redundant programming and a mechanical overhaul that reinforces known weaknesses from the original design that allow this BT-1 Assassin Droid to continue operating and survive much longer against a wide range of attacks. This programming overhaul slightly slows processing times while the mechanical fitments can slightly reduce agility.

BT-13 "Beetle" has developed a sense of fierce territoriality throughout his years of service to Keirdagh Taldrya Cantor. Regardless of what vessel, or location they are stationed on, BT-13 "Beetle" quickly views the area as his own, challenging any intruders without hesitation. Unfortunately, this can often result in visitors being seriously injured before Keirdagh Taldrya Cantor can intervene.

BT-13 "Beetle" has had its programs re-written and mechanical systems hard-wired for combat operations. This augmentation gives this BT-1 Assassin Droid a significant increase in combat efficiency in eliminating targets on behalf of Keirdagh Taldrya Cantor, but at the expense of it being usable for much else except for combat.