Red Faction (Group)
The Red Faction is the rebel group that the player is a part of when playing the games, Red Faction, Red Faction II and Red Faction: Guerrilla. The Red Faction, a workers’ union and freedom fighting guerrilla group was established by the working class of Mars under the oppression of the Ultor Corporation and previous ally, the Earth Defense Force.
Red Faction
The Red Faction was first formed in 2075 after the leader Eos and a few other miner groups began to make preparations for the revolt against Ultor.
The group, known to Ultor guards as a mere Miner Olympics team, secretly gained momentum over the years. Once established, the Red Faction revealed itself as a rebel group. Ultor hired Masako and her mercenaries to put an end to the revolution. Parker, a Red Faction member, fought his way through the mines and called for assistance from the Red Faction’s ally, the Earth Defense Force. After the EDF eliminated all remaining Ultor guards and mercenaries, Mars was under Earth control.
Red Faction II
Not much info is known about Red faction in RF2, but the EDF is now an enemy. They took over the Ultor's tech and used it to improve their soldiers, and now the Red Faction are here to stop it.
Red Faction: Guerrilla
EDF forces determined that the Red Faction had sabotaged mining efforts on Mars, and thus outlawed the group. Despite this, the EDF still remained paranoid of another rebellion and incarcerated and killed anyone whom they thought had an affiliation with the rebel group. This led to full-scale warfare on the planet.