|The following is based on information from Fallout Tactics.|
The Mutant Liberation Army is a potential faction in the Midwest.
If General Barnaky becomes the sole organic component of the Calculator, the combined Brotherhood of Steel and Robot army becomes a benevolent dictatorship towards humans and a ruthless exploiter of mutants. The Mutant Liberation Army is a faction that eventually forms, made up of mutants and humans that work together towards the common goal of protecting and eventually liberating mutants from under the Brotherhood's harsh rule.
Despite the Brotherhood's violent efforts to subdue and destroy the faction, for every public execution, for every disappearance, another rebel joins the MLA and soon the Brotherhood finds itself locked in a struggle with the faction. Eventually, however, the MLA loses its advantage due to the sheer overwhelming size of the Brotherhood's army and are driven back west, towards lands of the original Brotherhood.
The Mutant Liberation Army is mentioned in Fallout Tactics.