On October 10, Spindel's soldiers discovered that the scientists at Mariposa were using military prisoners as test subjects in their experiments with the Forced Evolutionary Virus. Morale in the base dwindled, and Spindel suffered a mental breakdown, eventually committing suicide five days later. Roger Maxson, Spindel's second-in-command, assumed leadership.
Maxson captured Anderson and interrogated him, learning about the extent of his crew's actions. Anderson said that his orders came from the government, but Maxson did not believe him. He started screaming about how he was following orders, how he was a military man, but Maxson shot him, and the executions of the other scientists soon followed.
Robert Anderson is mentioned in Fallout.