BoS Quest 15 - The Nuclear Option

 

 

BROTHERHOOD OF STEEL QUEST 15 - The Nuclear Option

Triggered by completing Brotherhood of Steel quest 14 - Ad Victoriam

 

Objective: Talk to Elder Maxson

 

When you land after dropping through the hole, walk over to Elder Maxson who is waiting beside the Relay Control Room terminals and talk to him to get your final marching orders. Maxson will hand over a fusion pulse charge for you to use on the nuclear generator. You'll need to find your way through the main area of the Institute to the Advanced Systems area, entering the reactor section to plant it.

 

 

Objective: Reach the reactor

 

To begin your reactor-bound journey you'll need to enter the nearby door leading to the old robotics area. After passing through the first door, you'll round a corner to see a pair of laser turrets and a synth strider and two patrollers firing at your forces. More enemy synths will fire at you out of windows on the far wall as you descend the stairs and ramps to where the first enemy group was.

 

Use the distance to your advantage, using rifles and other long range weapons to bring them down quickly with headshots. Be careful of destroying synth arms as they will then race to you and engage in melee. While not overly dangerous, an unexpected synth to the face can be a bloody big distraction when you are in the middle of a firefight.

 

 

After the windows are clear, take the stairs down to the level below, staying alert for a melee synth and a ranged synth halfway down. At the bottom of the stairs, is a terminal that controls the prototypes in the room beyond (including the sentry bot). You can choose to activate the sentry bot so it attacks the synths nearby. Synths will swarm in from the far end of the room as you enter so be ready to backpedal to cover.

 

This is a long distance confrontation once again, so pull out a rifle or other ranged weapon to pick off the synths before they get too close. Your allies will help weaken them as the fight progresses. On the far side of the room down a side hall, you'll find a hatchway leading down. Drop through it and grab a fusion core from the machine to your left. A short linear corridor will take you to a doorway which leads to the Bioscience area of the institute.

 

 

Descend the stairs and pass through a door to find yourself at the console you may have encountered earlier (during the Institute sidequest - A House Divided) when you were dealing with the rebels. As you enter the main Bioscience area, scientists will flee only to be replaced by incoming synths from the far side of the room. Use the central wall as cover while you slowly clear the enemy synths one by one. Watch out for the laser turrets on the wall above the opposite doorway as well.

 

You'll then pass into the large central area of the Institute to be met by a multiple groups of synths with a few coursers amongst them. You'll have to fight your way across the area with your group of Minutemen to reach the door of the Advanced Systems area. Which unfortunately for us has been locked tight.

 

 

Objective: Use terminal to override Institute lockdown

(Optional) Objective: Issue evacuation order

 

The terminal can be found in Father's living quarters. Follow the markers through the hallways and up an elevator to reach them. When you arrive you'll find him waiting for you there. You can either convince him to give you the password or hack his terminal. Take the time to talk to him either way. When you gain access to the terminal, you can also choose the option to 'engage evacuation protocol BD-2' which will ensure more people escape the upcoming blast. When you are ready to open the Advanced Systems doors, select 'master security lockdown override.'

 

Objective: Reach the reactor (cont)

 

You won't be able to return the way you came, instead take the side door and descend the spiral walkway back down to the central area of the Institute, taking on more synths as you approach the now open door to Advanced Systems. You can just rush past this wave of synths and access the door if you like instead of fighting your way through. When you are inside, several scientists and synths will engage you as you enter the lab area. By now you should be well practiced at bringing these foes down, so take them to the cleaners.

 

 

You'll pass through the old concrete and rusted metal of the corridors leading to the reactor room. Be extremely careful as you approach the doors leading to the room itself as there are large numbers of synths and scientists inside (including some with plasma and regular grenades). There are also multiple catwalks in the reactor room, meaning synths will often be shooting down at you from above making cover less effective. Take your time, avoid the grenades and use up a few stimpaks if you like because this is the final fight of this questline. You'll need to loot the body of one of the synths (A-2018) to obtain the reactor terminal password. When you can, work your way up to the reactor and interact with the terminal beside it's door. 

 

Objective: Plant fusion pulse charge inside reactor

 

You'll want to shut down the reactor first to remove the massive amounts of radiation from inside. Once that's done you can open the door to the reactor and place the pulse charge on the pillar (housing) inside. A few seconds later, you will be teleported by Ingram back to the relay control room.

 

 

Objective: Talk to Elder Maxson

 

This should automatically complete as you arrive.

 

Objective: Speak to Shaun

Objective: Speak to Proctor Ingram

 

Talk to the young Shaun and you can choose to save him or leave him behind. Quicky inform Ingram about your choice and she'll fill you in on the escape plan.

 

 

Objective: Step into the relay

 

Step back into the relay where the Institute journey began to leave it for the final time. You'll appear on top of the Mass Fusion building with the detonator on a barrel beside you.

 

Objective: Use the detonator

 

And here comes the BOOM! Interact with the detonator beside you twice to blow the Institute sky high. That's a hell of a screenshot right there. After the ending scenes play out, several Brotherhood members will be standing behind you on the rooftop.

 

 

Objective: Talk to Elder Maxson

 

Have a final chat with Maxson to wrap things up. Things aren't quite over yet though as there's still one more short quest to finish before the Brotherhood questline draws to an end.

 

 

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