Mutant Alliance
The first wave of Alien incursions resulted in many genetic experiments involving crossbreeding humans and the Alien species known as Sectoids. These hybrids have survived in human society, but they have been denied the right to procreate within the city. They also suffer discrimination in employment and education. Although they are genetically almost identical to humans, they retain some Alien facial characteristics and are renowned (and distrusted) for their Psionic abilities. Hybrids Psionic abilities may well prove useful to X-COM in the war against the Aliens. The Mutant Alliance is active in city politics and promotes the concerns of the hybrid community.
Benefits
As long as the Mutant Alliance are non-hostile, random mutant recruits will occasionally appear for hire.
When you save the Sectoids in the alien farm mission, the Mutant Alliance will improve its standings with you if your relations aren't already in good standings.