Spoilers for Deus Ex: Mankind Divided - A Criminal Past follow!
|"What I'm doing in here is too important. No offense but I'm not pulling out for a maybe."|
Guerrero assumed the persona Oscar Mejia in 2027 in an undercover operation to infiltrate the ranks of a powerful and dangerous group of black market pipeliners known as Junkyard. His mission is to entrench himself within the organization and gain their trust while feeding Interpol a steady diet of intel.
As part of his operation, Guerrero got a prison sentence and was sent to Penley T. Housefather Correctional Facility, a high-security prison for augmented felons in Arizona, United States. Sometime in 2029, Adam Jensen is sent there, also undercover, to get some "sensitive information" from Guerrero that is connected to an impending terrorist attack.
By the time Jensen arrives at Pent House, Guerrero had grown in his role as a rising Junkyard member. At Pent House, Guerrero ordered Thomas Stenger, Pent House' head of security and also an agent of Junkyard, to execute certain inmates picked by Guerrero himself in order for their augmentations to be harvested after execution. At one point, however, Guerrero got into a disagreement with Ian Wilburg, another Junkyard member at the Pent House, who threatened to have Guerrero removed from Junkyard. Presumably to protect his position at Junkyard, Guerrero hacked a sentry bot, which killed Wilburg.
When Adam finally locates Guerrero, Guerrero is hostile and dismissive towards Interpol's concerns of an imminent terror attack. He refuses to cooperate and insists that he is better of use continuing his infiltration of Junkyard. He is then attacked by Stenger, who believes that Guerrero has compromised the Junkyard operation at Pent House. Stenger sentences Guerrero to solitary confinement and subsequent execution. However, the inmates at the prison riot. During the riot, Jensen rescues Guerrero.
Depending on Jensen's actions, he may discover that Guerrero was responsible for Wilburg's murder. Guerrero defends this by saying that it was to protect his Interpol cover. This explanation is placed under considerable doubt if Jensen discovers an audio recording between Guerrero and Wilburg suggesting that Guerrero had Wilburg killed in order to protect his position at Junkyard.
After Jensen rescues Guerrero from solitary confinement, Jensen meets Guerrero once more at the helipad, where the two had agreed to meet to escape the facility. At the helipad, Guerrero wishes to kill the Fixer in order to protect his and Jensen's Interpol cover. To resolve the situation, Jensen may side with either Guerrero or the Fixer, or persuade Guerrero to stand down.
Jensen will have to debate Guerrero at the helipad at the end of the DLC. Guerrero's CASIE summary is as follows:
- Agent Hector Guerrero, aka Oscar Mejia, has spent too long pretending to be something he is not. His undercover experiences have aggressively reshaped his perspective and priorities. Guerrero is a cornered animal, no longer certain of who he is or what side he is on. He will do anything to survive.
- His blood type is O.