"Override" by George R. R. Martin
First Printing: Analog, September 1973
Martin writes a story about world that uses the science fictional equivalent of zombies. "Handlers" take the bodies of dead men and use a device to control them. They are used in environments that are too dangerous for humans. Trouble begins when the workforce is outlawed. The protagonist takes his group on a final mission to harvest a treasure. Then his slaves revolt.
Martin is one of the best at building atmosphere. His worlds seem alien and usually feel very old. This story is no exception. His worlds always feel "real". The cultures have a history. It does not seem like they were just created for this story.
At one point Martin was going to add more stories to this series. It is too bad that he did not expand on it.
Highly recommended. "Override" is an example of a classic Martin short story.