Alias is the codename for the protagonist in Red Faction II. He was a super-soldier who originally worked under the regime of Commonwealth Chancellor Victor Sopot. Sopot's paranoia later led him to betray his own super-soldiers; Alias, with the assistance of five other such soldiers, fought back.
Nothing is known about Alias's life prior to his participation in Sopot's nanotechnology experiments. He was born on May 18, 2137,[note 1] and at the age of twenty-four, he had no next of kin.
Sopot had obtained nanotechnology and used it to create an army of super-soldiers; Alias was one of these soldiers. When he was twenty-four years (and one day) old, Alias voluntarily participated in one or more unspecified experiments that enhanced his physical and mental abilities. He was one of only twenty-seven percent of test subjects who showed no significant psychological changes.
Following these experiments, Alias became a seven-year veteran of Sopot Special Forces with foreign service experience, specializing in demolitions. He was highly decorated, having received Chancellor Sopot's quattro-cluster for heroism and the Sopot medal of valor.
In Red Faction: Guerrilla
In Red Faction: Guerrilla, a Radio Tag left by Alias can be found in the northeastern section of Eos. It can be assumed that Alias was about to face his death while on Mars, as int he recording, he begins to reminisce of his past battles and achievements for and against the Commonwealth.
 The game's Gamestop page states that his augmentations were administered on May 19, 2161, when he was twenty-four years and one day old. Simple mathematics allow us to determine a date of birth.