After the free-for-all modeling of classic Zerg units was over and the official work on Heart of the Swarm began, this was one of the first pieces of art I worked on for the expansion. The Char arc was in a very aggressive stage of development and many ideas were being explored. The Char arc was envisioned as a Terran infestation of a Zerg World, and with General Warfield leading the Terran forces we made custom modifications to Terran art to represent Warfield's presence on Char. The familiar Terran Colonist vehicles were outfitted with military components to help sell the hostile takeover, and desert camouflage patterns were a final touch to complete the reference to Warfield himself. The idea was this Transport's weapon would shoot corrosive napalm all over the Zerg remnants on Char, basically melting the remainder of Kerrigan's swarm.