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Fallout 4 (FO4)
The Nuclear Option (Railroad) Walkthrough
This is a walkthrough of The Nuclear Option Railroad Faction Quest in Fallout 4 (FO4). Read on for a full The Nuclear Option Railroad walkthrough and learn The Nuclear Option location and rewards.
| Previous Quest | Next Quest |
|---|---|
| Rockets' Red Glare | - |
The Nuclear Option (Railroad) Quest Summary
| The Nuclear Option Overview | |
|---|---|
| "Save all the rebel Synths by infiltrating and destroying the Institute for good." | |
| Faction | The Railroad |
| Quest Giver | Desdemona |
| Quest ID | 0010C64C |
| Rewards | ・ XP: 1725 |
The Nuclear Option (Railroad) Walkthrough
The Nuclear Option (Railroad) Objectives
- Find Z1-14
- Kill Everyone in the Relay Room
- Talk to Desdemona to Get the Fusion Charge
- Head to the Main Square
- Defeat All Enemies in the Main Square
- Issue a Lockdown Override
- Reach the Reactor
- Talk to Shaun and Tinker Tom
- Use the Detonator to Destroy the Institute
- Speak to Desdemona After
Find Z1-14
Head back to the Institute and take the elevator in the main square to the Relay Room. As you turn right, you should see Z1-14. Speak to him to get the plans started.
Kill Everyone in the Relay Room
Next, defeat everyone in the Relay Room since you'll need it to bring in the rest of the Railroad.
Talk to Desdemona to Get the Fusion Charge
After everyone arrives in the Relay Room, speak to Desdemona, and she'll give you the Fusion Pulse Charge that you'll need to plant later on
Head to the Main Square
Proceed to the Main Square by entering the Old Robotics Department. Head down to the bottommost area and make your way to the end of the last floor to find the hatch leading to the Bioscience Department.
When you reach the Bioscience Department, take the path to the right. The exit should be on the left side of the Gorilla enclosure. Take that exit to reach the main square.
Defeat All Enemies in the Main Square
Defeat all enemies inside the Main Square, including the Coursers sent to attack you. Make sure you defeat all enemies, as this is the only way to trigger Tinker Tom's announcement, which allows you to access the elevator in the middle again to reach the Father's room.
Issue a Lockdown Override
When you reach Father's room, proceed to the second floor to locate the terminal. Use it to issue a lock override, unlocking all doors on the main floor and granting you access to the Reactor.
Talk to Father to Shutdown the Synths
You can also speak to the Father to gain access to the Synth Shutdown command. However, this requires passing charisma checks, so make sure you have Charisma perks before attempting this.
Activating this command shuts down some of the deployed Synths, reducing combat pressure as you proceed to the reactor.
All Charisma Perks List and Best Charisma Perks
Reach the Reactor
Proceed to the Advanced Systems and enter the room directly ahead. Follow the path, and it will lead you to the reactor.
Keep in mind that the path will be littered with turrets and Synths, especially in the main room, so be sure to defeat them to reach the reactor quickly. Plant the Fusion Pulse Charge immediately as soon as you reach the reactor.
Talk to Shaun and Tinker Tom
After planting the Fusion Pulse Charge, rush back to Desdemona to teleport back to the Relay Room where Shaun now waits with the rest of the Railroad. Talk to him and Tinker Tom to activate the Relay Platform.
Use the Detonator to Destroy the Institute
Once outside, activate the detonator in front of you to destroy the Institute for good.
Speak to Desdemona After
After the explosion, a cutscene will play shortly. End the quest by speaking to Desdemona after the cutscene.
| Previous Quest | Next Quest |
|---|---|
| Rockets' Red Glare | - |
The Nuclear Option (Railroad) Location
Where to Start The Nuclear Option (Railroad)
| Map View |  Railroad HQ |
|---|---|
| Quest Giver |  Desdemona |
Fallout 4 Related Guides
List of All Factions
| All Joinable Factions | |
|---|---|
| Minutemen | Brotherhood of Steel |
| The Railroad | The Institute |
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The Nuclear Option (Railroad) Walkthrough
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