Going to lead Hope's Last Day shortly. Plan on expanding the Processor 9-part and the trek back to base somewhat. Probably let the players get the suspicion that their buggy's battery level was tampered with before the trip started. If they push on to the P9, a comms array/relay link/node at P9 is destroyed, preventing or hindering signaling from the base. I will probably have a stressed technician there, as suggested OP in "Trust no one". Purpose is to test skills and the rules system before getting back to the base.
During the trek back, perhaps let them get a feeling they are tracked (as prey) in the hazy rock mazes.
Any other ideas to expand the first part of the scenario?