X1-Z6, along with the other survivor's and Byron, made it out of Kalakar Six in one piece. For the rest of the adventure, X1-Z6 stayed on the Night Vulture, as a sort of security droid. X1-Z6, unlike other utility droids, was a pretty aggressive one and wasn't afraid to attack anyone who annoyed it, unless it was a superior or a force-sensitive Sith Lord. At some point when HK-47 traveled with the group, HK-47 once interacted with the droid saying he reminded him alot of another droid he once knew long ago, and that he was annoying. X1-Z6 responded by electric-shocking HK-47.