Deacon

Deacon is a synth sympathizer living in the Commonwealth in 2287. He is a potential companion in Fallout 4.

Background
Deacon is a spy for the secretive pro-synth organization, The Railroad. When the Sole Survivor first approaches the group they discover Deacon has been covertly keeping tabs on their activities in the Commonwealth. He will vouch for the Survivor's character to Desdemona, citing their accomplishments in the wasteland and their potential usefulness. Should the Sole Survivor join the Railroad, Deacon will become a companion.

At first glance Deacon is a laid back, lighthearted individual with a penchant for toying with people by lying. In reality he proves to be a cautious loner who is slow to trust. As they travel together, Deacon informs the Survivor that he is a synth and shares his recall code: a verbal command that will provide information on the Institute at the cost of wiping his entire personality. As his approval rises Deacon will reveal that he was one of the original founders of the Railroad some 70 years before, and Desdemona is merely the figurehead for his shadowy leadership. However, passing speech checks cause him to break down and confess these are all lies. He then warns the Sole Survivor to be wary of malicious people who will deceive them to achieve their own ends.

Once Deacon has reached maximum approval he will confide in the Survivor that he feels out of place in the Railroad. He says that as a youth he was a member of the University Point Deathclaws, a gang who harassed people accused of being synths. Their antagonism escalated to a lynching which was carried out on unreliable information. Shaken by the killing, Deacon left the gang to become a farmer. He fell deeply in love and married a woman named Barbara, but the Deathclaws returned and murdered his wife. It was not in retaliation for Deacon's departure, but because they had learned - to both Deacon's and her surprise - that Barbara was a synth. In the aftermath of the slaughter Deacon swore himself to the cause of synthetic freedom and equality. He then thanks the Sole Survivor for putting up with his games and expresses appreciation for them being a friend he can trust.

Quests

 * Tradecraft: Deacon accompanies the Sole Survivor to the Railroad's previous headquarters to retrieve a lost prototype.
 * Precipice of War: The Sole Survivor and Deacon escort Tinker Tom to Cambridge Police Station to steal a Brotherhood vertibird.
 * Rockets' Red Glare: Using the stolen vertibird, the Sole Survivor and Deacon infiltrate and sabotage the The Prydwen.
 * The Nuclear Option: Deacon and the other members of the Railroad assault the Institute, freeing the synths within before blowing up the facility's nuclear reactor.

Effects of player's actions

 * At maximum approval Deacon awards the Cloak & Dagger perk, which gives +40% duration for Stealth Boys and +20% damage from sneak attacks.
 * Deacon will become instantly hostile if the player character kills a settler or anyone involved in the Railroad.
 * Siding with the Brotherhood of Steel or the Institute in the end game sequence will flag the player character an enemy of the Railroad, resulting in the loss of Deacon as a companion and turning him hostile.

Approval

 * Deacon likes when the player character picks locks.
 * Deacon likes when the player character hacks terminals.
 * Deacon likes when the player character promises to help people.
 * Deacon likes when the player character resolves conflicts without killing.
 * Deacon likes when the player character suggests that Stockton has a good reason to be paranoid.
 * Deacon likes when the player character humors Tinker Tom's paranoia.
 * Deacon likes when the player character sides with Ironsides in Last Voyage of the U.S.S. Constitution.
 * Deacon likes when the player kills Lorenzo Cabot.
 * Deacon likes when the player tells Joe at Bunker Hill that helping synths is a good thing.
 * Deacon likes when the player completes Boston After Dark and also if the player uses the code words to High Rise.
 * Deacon loves when the player character helps a synth.
 * Deacon loves when the player agrees to attempt to communicate with Patriot during The Molecular Level.

Disapproval

 * Deacon dislikes when the player character asks for more money in dialogues.
 * Deacon dislikes when the player character attacks non-hostiles.
 * Deacon dislikes when the player character uses Chems.
 * Deacon dislikes it when the player character eats a corpse.
 * Deacon dislikes when the player character gives drugs to Mama Murphy.
 * Deacon dislikes when the player enters Lorenzo's cell after killing him.
 * Deacon dislikes when you help Preston retake Fort Independence.
 * Deacon dislikes it when the player character enters the town of Covenant.
 * Deacon dislikes when the player returns the egg to the deathclaw.
 * Deacon hates it when the player joins the Brotherhood of Steel.

Notable quotes

 * "The big three for predicting people: caps, beliefs, and ego. Get a handle on what's driving someone, and you know where you stand."
 * "And here I was wanting to spend the day reading Proust. And then you have to ruin it."
 * "I really want to know how the Big One started. What idiot fired first? Why? What the hell did they think they'd gain?"
 * "Back before I met you I'd go whole days without massacring a bunch of things. Honest."
 * "But I had a point here. A lesson, if you will. There're other organizations out there. And, in time, I'm sure they're going to spoon-feed you their own patented form of bullshit. Ignore the verbage and look at what they're doing. What they're asking you to do. What sort of world they'd have you build and how they're going to pay for it."
 * (When told to stay) "Absolutely. And my eagerness is totally unrelated to wanting a smoke break."
 * "I never really much cared for the Minutemen. The idea sounds great. But you give small men big power and sometimes you'll pay for it."
 * "One time, I got a face change and was a girl for a few months. You should've seen the looks back at HQ."
 * (When you decide to keep Buddy) "This robot is a national treasure!"

Appearances
Deacon appears only in Fallout 4.

Bugs
Deacon goes into a loop if you select 'Talk' after he has giving you his recall code, denying exiting of Power Armor.

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