Sierra is an intelligence that pilots the agrivessel the Hen and Chicks.
Sierra is a curious and friendly intelligence that resides in an agrivessel. They have modified some of their parts to allow them to paint with some of their nozzle arms.
Sierra encounters Fealty in the Skarnoc Debris Fields while Fealty is on the run from the Curtain. When they reach out to see what's going on, Fealty asks her what she'd like to be doing if she didn't have to work for her bosses. Sierra admits they would like to paint, and goes on to work on paining large pieces over the debris in the area. When Fealty leaves the area, they transfer control of the settlement to Sierra.[1]
By the time Pact and Curtain forces have moved into the Skarnoc Debris Fields as they try and land on Palisade, Sierra has gathered up the settlement and moved elsewhere. [2]