Vassago has had every external component painted black as night, with attempts to minimize the brightness of external lights and features. This allows this HK-model Gladiator Droid to more easily blend into the shadows and darkness unseen.

Vassago has recieved redundant programming and a mechanical overhaul that reinforces known weaknesses from the original design that allow this HK-model Gladiator 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.

Vassago has developed a predatory nature similar to those often associated with assassin droids. As a result, Vassago will often approach a situation with the mind set of a hunter, and convey their findings as such. This can be disconcerting to others who are unaccustomed to Vassago.

Vassago has been equipped by Legorii Arconae with a software module designed to be downloaded to the HK-model Gladiator Droid's behavior core. The package replaces the droid's assassination routines with valet and bodyguard protocols, limiting the droids combat capabilities to basic defensive and offensive maneuvers.