Super Mutant Master (Fallout 3)

Super Mutant Masters are a variant of Super Mutant found throughout the Capital Wasteland

Background
These super mutants were created in the Evolutionary Experimentation Program, an experiment assigned to Vault 87. This modified strain of FEV was used to create these mutants and resulted in a new strain of super mutant which, in addition to becoming sterile, grow larger and stronger as they age.

Appearances
Super Mutant Masters appear in Fallout 3.