Master's Army

Master's Army was the military branch of the Unity, composed of normal mariposa super mutants, centaurs, floaters and nightkins, the elite forces of the Master.

Background
The Master lamented the needless destruction of the Great War. In order to avoid the self destruction of the species, he desired to forcefully evolve humans into one, perfect race, removing the inequalities that are the cause of strife among humans. If everyone could be as perfect as his super mutants, there would be no more conflict. Those who could not evolve would die. Around 2155, the Master began seeking out uncontaminated humans with which to create mutants in used the Forced Evolutionary Virus (FEV), and build his super mutant army, named the Master's Army. It was the first step of the Unity, his perfect vision of humanity.

Military
The Master's Army was composed of:
 * Normal mariposa super mutants, some brilliant and many dumb brutes.
 * Nightkins, elite forces of super mutants that used Stealth Boys.
 * Centaurs, creatures created with mix of humans, dogs, and other types of animals into a FEV vat.
 * Floaters, mutated flatworms with FEV and Master experiment.

Troops

 * Davison's nightkin
 * Tabitha's nightkin
 * Vat Team 9

Leaders

 * Master
 * Lieutenant

Commanders

 * Attis
 * Gammorin
 * Viscious

Captains

 * Davison
 * Tabitha

Sergeants

 * Harry
 * Vat Team 9 sergeant

Appearances
Master's Army appeared only in Fallout but it mentioned in all Fallout games.