They Also Serve (Westlake) AKA Richard Stark

The launch carrying the mail, supplies and replacements eased slowly in toward the base, keeping the bulk of the Moon between itself and Earth. Captain Ebor, seated at the controls, guided the ship to the rocky uneven ground with the easy carelessness of long practice, then cut the drive, got to his walking tentacles, and stretched. Donning his spacesuit, he left the ship to go over to the dome and meet Darquelnoy, the base commander.
An open ground-car was waiting for him beside the ship. T...