This overview will administer instructions because that completing the Minutemen Quest: The nuclear Option. This pursuit initiates the finishing sequence of events for the Minutemen faction, effectively concluding the key storyline. If you sympathize with Preston Garvey and also his cause, then follow this guide to proceed with the Minutemen’s plans.

Should you instead need walkthrough travel guide for any other search in the Commonwealth, climate make certain to head over to our autumn 4 guides walkthrough hub page.

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How to finish the Nuclear choice Quest

Talk to Preston Garvey

Head come the Castle and also speak through Preston Garvey to comment on the Minutemen’s plans. This quest becomes available upon completion of the vault quest defend the Castle, and by having actually completed the objective in the Minutemen Quest: inside Job. To evaluation these quests, head end to’s autumn 4 Walkthrough and also Guide.

Talk to Sturges

While preston rallies the troops, locate Sturges in Sanctuary to speak through him around his findings. Based upon the intel you retrieved from the academy holotape, Sturges has uncovered a method to infiltrate the Institute.


The setup is to accessibility the Relay from within the institute to teleport the Minutemen inside. However, girlfriend must first sneak into the Institute v an underwater grate. Sturges provides you the code, therefore accessing the grate need to be easy. The tricky component is wading through the irradiated waters to reach this grate in the very first place.

Gain access to the Institute

After speaking v Sturges, prepare for your journey through packing some radiation relief items, such as RadAway and also Rad-X. If you want to it is in extra cautious, girlfriend can pick to equip a Hazmat fit to survive the prolonged radiation exposure in the water.

When ready, fast-travel to the C.I.T. Ruins and also jump into the murky river simply south the the building. The place you’re trying to reach must be marked on your Pip-Boy map. Swim east, curving roughly the river bank towards the objective waypoint on your map. Proceed until you reach an underwater pipe labeling as the general public Works maintenance Area. Swim through the pipe to arise on the other side, wherein you will discover a keypad on the wall. Activate the keypad to open the grate and also gain access to the institute.


How to Activate institute Relay

After utilizing the keypad, dive back into the murky waters and swim with a tunnel to the east. Monitor the autumn to with the old sewage system area in ~ the various other end. Climb the end of the water ~ above the walkway, and also head v the tunnels. Prepare to destroy several laser turrets the line the tunnel ceiling together well.

Continue through the second pipe and also follow it all the means to the end, whereby you uncover a hatch on the left. Head up the staircase to the room and enter the next component of the sewer. Look because that a huge pipe labeled with “Inflow” arrows on its side. Follow the arrows until you reach an open security door in ~ the end. You can also hack the protection terminal or pick the lock ~ above the experienced level security door the you pass by along the way. The sewers have the right to be fairly dangerous if you stray indigenous the path, for this reason be ready to eliminate any Ferals, Synths, or turrets the you may encounter on your trek.

Once you get in the security gate, prepare to fight turn off several an ext Synths as you acquire closer come the facility. Locate an additional inflow pipe that leads towards the Institute. Proceed through the winding pipe until you discover an additional hatch. Enter the hatch to infiltrate the Institute regulate Room. Access the facility computer terminal, and also input the academy Relay Targeting Sequence. Preston Garvey and the various other Minutemen need to arrive shortly.


Talk come Preston Garvey

Now the the Minutemen crew has effectively arrived in one piece, speak through Preston Garvey to get the blend Pulse Charge and also to talk about how to proceed.

Reach the institute Reactor

Head through the northeast corridor and also enter the door to Old Robotics. Prepare to fight off the hostile Synths in the following room. Hack the computer terminal just before the staircase come deactivate few of the turrets if friend wish.

Continue with the passages, remove Synths and turrets in ~ the assorted chambers the Old Robotics. Follow the target marker with a hallway to the east and locate a hatch on the floor. Drop under the hatch, and head v a brief tunnel causing the Bioscience Lab. Go down the stairs toward the main lab, and also prepare come destroy one more handful the Synths and also turrets. Clear the laboratory of hostiles, and proceed with the door resulting in the central hub the the Institute.

Use Terminal to Override academy Lockdown

Optional: worry Evacuation Order

After clearing out the Synths in the key section that the Institute, Sturges notifies you the the place of the reactor. However, girlfriend will require to access the Director’s terminal and input the override prior to you can go into the advanced Systems division.


Ride the central elevator approximately Father’s quarters. Speak v him to achieve the override password, or hack the computer system terminal behind Father’s bed instead. If her Charisma rank is high enough, there’s a slight chance to convince Father to assist you.

At the terminal, activate the master Security Lockdown Override. You can optionally engage the Evacuation Protocol as well, if you want to alleviate the variety of Synths you encounter through the rest of the mission.

Reach the Reactor

After initiating the override, head down the spiral staircase and also make your way to the advanced Systems division. Fight your way past the Synths, and also enter a room causing the reactor. Continue up the long hallway, very closely taking the end each that the turrets that line the ceiling. Enter the door and go under the staircase right into the blend reactor room. Eliminate the enemy Synths, and ascend the scaffold to technique the reactor door.

Plant combination Charge inside Reactor

Keep in mind that as quickly as you get in the reactor, your Rads meter will swiftly increase. As soon as you’re ready, open up the reactor door and also quickly tree the blend Charge top top the reactor.


Talk to Preston Garvey

After the fee is planted, speak through Preston Garvey, and also he will have Sturges teleport both the you to safety.

Talk come Shaun

When you arrive at the Relay manage Room, you uncover an unexpected person waiting there for you. Speak through Shaun, and also make a decision regarding his outcome.

Talk come Sturges

Speak v Sturges to educate him of your decision concerning Shaun. Allow Sturges know when friend are prepared to leave, and he will certainly prepare the Relay for her departure.

Step right into the Relay

Gather right into the Relay v the rest of the Minutemen. Once Sturges activates the Relay, you and also your crew will certainly be teleported to the rooftop the the Mass fusion Building.

Use the Detonator

Once you arrive on the roof of mass Fusion, prepare yourself through a good view of the wastelands, and press the detonator to finish the Minutemen’s mission.

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After successfully completing the last step that the plan, speak with Preston Garvey once an ext regarding the future that the Minutemen and the Commonwealth. Afterward, the Nuclear option quest concludes, and also the key storyline involves a close.