Informing Brotherhood, Institute and Railroad (2024)

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New - A guide to making a Melee Build
New - Scav Magazine - All locations and details
For New Players - Read the walkthrough.
New - Open Season
New - Power Play Quest
New - Raider Outposts
New - Nuka World Endings Guide - Options and Benefits
The Grand Tour
Faction Perks and New SPECIAL Ranks in Nuka World
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Informing the Brotherhood, Institute, and Railroad

Upon learning of a Synth Refuge (Acadia), your character gets the option to inform either the Institute, Brotherhood, or Railroad. Given the importance of the leader of Acadia to the storyline, this will undoubtely change things and is likely something you'd rather do later into the DLC or during a second playthrough. But if you're roleplaying a true Brotherhood Paladin, then perhaps you'd like to make sure those abomination Synths do not get to thrive in a human world.

When Will they Arrive
None of these options has any bearing until you complete enough of the main quest. No matter how long you wait the Institute or Brotherhood will not show up and attack Acadia until you've made it far enough in the Far Harbor story. If you do this, you'll lock in that choice, and that faction will then have a presence on the island.

They trigger as the fifth quest, after securing DiMA's memories and finding his secrets, and confronting whomever (it's seemingly after The Way Life Should Be) so they will not block you from investigating and you may indeed override them by making certain choices. By doing this you are choosing to not solve the Island's problems yourself, at least in regards to Acadia. Though the game may let you, I should warn you that if you take the option to tell them AFTER you've dealt with the Island's problems, the Institute or Brotherhood may show up but NPCs may be made essential to the point you cannot complete the quest.

Inform the Railroad

Who to Tell: Boxer

Of the three options, informing the Railroad seems most tame, and if you inform the Railroad you can still inform one other faction. Because of these things, I'm mentioning this first. You do NOT get a quest from informing the Railroad about the Synth Refuge. Boxer says she'll go there as soon as she has time, so it's a stall for when you get to the proper point in the main quest.

I don't yet know what happens with this one, but will write more when I do. Would appreciate anyone who has done it sharing the info on the comments at the bottom of the page.

Inform the Brotherhood: Search and Detroy Quest

Who to Tell: Lancer Captain Kells

At the point it occurs, the Brotherhood will do what the Brotherhood do - your quest will be Search and Destroy, and you'll work with the Brotherhood to remove the Synth outpost of Acadia. This prevents you working with or against DiMA to change the fate of the Island and may keep it in a state of war between CoA and Far Harbor, at least to my current knowledge.

Inform the Institute: Forbidden Knowledge Quest

Who to Tell: William Mosley in Advanced Systems

You will get the quest Forbidden Knowledge to subdue the Synths of Acadia and return them to the Institute. This is less aggressive than the brotherhood option, but has the same outcome in terms of dealing with the Island's problems.

Someone on steam forums reported that if you are stuck in the Forbidden Knowledge quest you can try killing the Synth with the quest marker last and that the quest may complete properly.

Informing is an Alternate Ending

So, informing the two aggressive factions (institute/brotherhood) is an alternate ending for the DLC. It allows you to show your loyalty to the faction you're working for, basically for roleplaying purposes. These factions would not have a role in the DLC without these options, so it's cool that Bethesda threw them in. I recommend against the last two, but again don't know what Railroad does for Acadia. Overall by doing this you may be missing out on some decent rewards. Definitely consider finding all of DiMA's secrets before you complete the Best Left Forgotten Quest so that you can at least get those rewards.

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Nuka World - Play as a Raider in this DLC
Far Harbor - Learn about the DLC, its secrets, and read walkthroughs
Automatron - Guides to building bots and quest walkthroughs
Settlements - An in-depth guide to Settlements and managing them
Melee Build - the best perks for a melee character
Sneaking - Learn to be stealthy
Critical Hits - Shots to Crit and Crit damage mechanics
Tips for Making a Build - General advice for creating your own build
Action Points - AP and all the things that affect it
VATS - all about the V.A.T.S. and AP usage on weapons
Gameplay Tips - pointers that will help new players
Making a Sniper Rifle Weapon mod examples. Heavy hitter and fast-firing Comparison - two guns from the same base.

Share Tips and FAQs (5)

deluges

You'll find that Boxer made the trip to Acadia, she'll be found on the basem*nt level above Kasumi's. She just says one line, something along the lines of 'Wow, they really did it'.

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Informing Brotherhood, Institute and Railroad (2024)

FAQs

What happens if I inform the Railroad and the brotherhood? ›

(Note: If both the Brotherhood and Railroad were informed, this second piece of dialogue will be unavailable and the courser advances towards Bunker Hill after the first dialogue.)

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Should you inform the Brotherhood or Railroad about Bunker Hill? ›

While there are many ways to complete this quest, only one method will result in no consequences from any of the major factions involved. If the player does not inform either the Railroad or the Brotherhood, they can simply enter Bunker Hill and retrieve the synths (relatively) unmolested.

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What happens if you inform the Institute? ›

Upon the discovery of Acadia and while allied with the Institute, the Sole Survivor has the option to inform the Institute of the existence of the escaped synths in this location. The Institute will then send a team to Acadia to subdue and capture the escaped synths.

Is it better to help the Institute or the Railroad? ›

After clearing the area, you're given the go ahead to detonate the charge and nuke the Institute from a distance. Siding with the Railroad ultimately helps save Synths from a life of servitude. Upon leaving the Institute building, there is also an opportunity to save a Synth boy who believes you to be his parent.

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Can I side with both the Brotherhood and Railroad? ›

Provided you don't follow too far into the other factions' questlines, being forced to attack other factions, and you use the Minutemen, the Brotherhood and Railroad can remain amicable (though not exactly friendly). This way, the only faction that has to go is the Institute.

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What happens if you report Acadia to the Brotherhood? ›

Giving this instruction fails all outstanding quests for the Acadia faction, makes Acadia faction members hostile, and disables fast travel to Acadia.

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What happens to danse if you side with the railroad? ›

The Railroad and Institute endings both force the player character into conflict with the Brotherhood and lose Danse as a companion.

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What happens if you side with the railroad instead of the Minutemen? ›

If you pledge your final loyalty to the Railroad Faction in Fallout 4, then you will no longer be able to complete quests or contact allies of other factions. Both the Institute and the Brotherhood of Steel will become permanent enemies.

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Can you save Paladin Danse and Side with the Railroad? ›

The Danse Dilemma mod that aims to adds Cut content, allows you to save Paladin Danse and side with Railroad and keep him alive to keep helping synths. The Danse Dilemma (pka Face Maxson etc.)

What happens if you agree to stay in the Institute in Fallout 4? ›

Aligning with the Institute requires eliminating the Railroad and the Brotherhood of Steel. This will result in losing access to the Prydwen airship that houses the merchant Proctor Teagan and, more importantly, the ability to buy mods for energy-based weapons.

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Can you not destroy the Institute in Fallout 4? ›

No its not possible. The game has certain way paths that you have to adhere to. And don't even think about the idea of BOS and the Institute staying together. Aligning with BOS, Rail Road or Minutemen means you have to destroy Institute.

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At what point does the Institute become hostile? ›

Mass Fusion (/ Spoils of War)

Continue and the player character will be teleported to the Mass Fusion executive suite. Alternatively, by informing the Brotherhood, Spoils of War will start, and boarding the Vertibird that spawns on the Prydwen will make the Institute hostile.

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Is Father actually Shaun? ›

Shaun, also known as Father, is the son of the Sole Survivor and their spouse (either Nate or Nora).

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Which faction has the best ending in Fallout 4? ›

The best ending is when you side with Commonwealth Minutemen in Fallout 4. Their ending is also considered canon since it's the only option that allows you to save almost everyone, preserving relationships and companions. Commonwealth Minutemen is also the faction that you can't truly destroy.

What is the most peaceful ending in Fallout 4? ›

Choosing to side with the Minutemen is the most peaceful option since the Institute is only faction they'll have to destroy.

What happens to danse if you side with the Railroad? ›

The Railroad and Institute endings both force the player character into conflict with the Brotherhood and lose Danse as a companion.

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Can you side with the brotherhood without destroying the Railroad? ›

Once this quest is acquired, before speaking to Kells, players can complete the Institute quest line up to Mass Fusion and then choose to 'Inform the Brotherhood' by speaking to Ingram when the time comes. This will automatically start Spoils of War while leaving the Railroad alive.

Can you side with BOS and railroad Fallout 4? ›

So the BOS is against the institute and Railroad, so siding with either of those will make them enemies, but if you don't then your fine.

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