This part of the Guide Fallout 4 is dedicated to the Institute quest "The Battle of Bunker Hill". You attack Bunker Hill in order to recover 4 escaped synths, but the Rail Network and the Brotherhood invite themselves to the party.
Activation: Automatic
Condition: Complete the quest "Homecoming"
Rewards: 620Xp + 500 caps
Visit father in his quarters to get new mission objectives. From there, leave the Institute and join the Hunter who is at the entrance to Bunker Hill (picture1). Under the terms of the dialogue with the latter, you will have to enter Bunker Hill in order to find your targets. If you have already met the Rail Network and the CDA, the members of these two factions will not pose a threat, so you can walk around the area without having to fight (picture2).
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So go around Bunker Hill to the left to reach the rear entrance, then head towards the objective marker and go down to the basement (picture3). At the bottom, go to the main room and let the three factions happily get on their faces, then enter the right corridor and go up to finally reach the synthetics (picture4).
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Now talk with each of your targets in order to deactivate them with the reminder codes (picture5). This operation accomplished, leave the premises then teleport to the ruins of the CIT. There, go around the building to the right and enter through the back door (picture6).
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Once inside, turn right and take the large stairs on the left to find access to the roof (picture7). At the top, join Father and chat with him to receive your reward and end the quest (picture8).
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Alternative sequences:
- Prevent the CDA and kill the 4 synthetics
- Warn the Rail Network and free the 4 synthetics