Follow our Fallout 4 Spoils of War walkthrough to locate the Mass Fusion Executive Suite, navigate the Mass Fusion building, and retrieve the Beryllium Agitator.
Walkthrough
- 1Fly to the Mass Fusion building's executive suite via vertibird. Clear out Synths. If the vertibird takes too much damage or all Synths are eliminated, you'll be dropped on the roof.
- 2Head inside and up to the third level. Pick the [Advanced] lock on a door to find a First Aid Box and other items. Search an outside area for another First Aid Box.
- 3Return to the second level. Find the "Oslow’s Office Recording" holotape. Hack the [Advanced] terminal to learn the Beryllium Agitator is in the reactor and requires the "Executive Keycard".
- 4Locate the "Mass Fusion Executive Lab Password" and "Mass Fusion Executive ID" on a nearby desk.
- 5Use the Executive ID keycard on the middle elevator to enter the main Mass Fusion building.
- 6As you descend the elevator, you'll be ambushed by Synths. Use VATS and sneak mode to eliminate them.
- 7On the ground floor, head to the north room to find the "Mass Fusion Labs Key" on a table.
- 8Hack the [Expert] manager's terminal in the north room to re-route power and complete the optional "Restore Power" objective.
- 9From the glass floor, head east, turn right, and follow the path to a ramp leading to a destroyed balcony. Follow the wall to find a room containing a copy of Tesla Science near a blue console.
- 10If you couldn't hack the terminal above, head to the northeast corner. Use the Mass Fusion Labs Key to open a door leading downward (or hack the [Expert] locked door).
- 11From the lower floor, go up the left stairs and through the left door to find an elevator with a keycard reader. Use your keycard to enter and descend.
- 12Upon exiting the elevator, Proctor Ingram will point out the reactor. Before heading there, go through the south door. Hack the [Novice] "Prototype Lab Terminal" to activate and then destroy a Protectron unit.
- 13Take the north door to another office area. Hack the [Advanced] "Attendant’s Terminal" for various options.
- 14Save your game. Optionally, mine the two doors across from the terminal.
- 15Use the terminal to activate two Assaultron Units. Eliminate them as they emerge.
- 16Activate the turrets. Shoot down the one above the terminal and the one in the southern room. Loot the locker room and bathrooms for a First Aid Kit.
- 17Enter the reactor-viewing area. Loot the Steamer Trunk at the end of the left balcony. Note the mag-lock doors.
- 18Check the area under the stairs for a hallway and side rooms. Hack the [Novice] "Analyst’s Terminal" in one room to unlock the [Master] Safe in the same room. Free and destroy the Protectron inside.
- 19Equip a Hazmat Suit from the locker room before entering the reactor due to high radiation.
- 20Enter the reactor and proceed to the top. Hit the button to pick up the Beryllium Agitator.
- 21The security system will activate. Shoot the two Laser Terminals on the ceiling to the west to disable them.
- 22Return to the decontamination room, hit the button, and re-equip your regular armor.
- 23In the viewing area, shoot the final Laser Terminal on the ceiling.
- 24A Sentry Bot will emerge from the north door. Use explosives to weaken it, then engage. Use the hallway under the stairs for cover if needed.
- 25To exit, head east up the stairs and use your keycard to open the door. Take the elevator back up.
Tips
- Proctor Ingram is essential and cannot be killed.
- Hacking terminals can reveal useful information and allow for power rerouting or activating/deactivating security systems.
- Be prepared for ambushes and multiple enemy types, including Synths, Assaultrons, turrets, and a Sentry Bot.
- The reactor area is highly radioactive; a Hazmat Suit is required.
- Explosives can be effective against tougher enemies like the Sentry Bot.
- Beryllium Agitator
- Tesla Science (magazine)
- First Aid Boxes
- Various loot from terminals, safes, and containers.
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