Fallout 4 Atlas

Mass Fusion Main Story, The Institute Quest


This quest will be triggered or can be aquired when you complete Mankind-Redefined quest.


Stages of "Mass Fusion" quest

1. Talk to Justin Ayo

This stage is optional. Quest will start here when you receive an order to find the Beryllium Agitator for the Brotherhood of Steel during Spoils of War quest.

The Brotherhood is going after something called a "Beryllium Agitator" in Mass Fusion. I need to let the Institute know.

2. Speak with Allie Filmore

I need to talk to Allie Filmore about the Institute's latest operation.

Speak with Allie Filmore

3. Relay to Mass Fusion or Inform the Brotherhood

The Institute is after something called a "Beryllium Agitator" from the ruins of Mass Fusion. I should relay there as soon as possible.

Warning: Relaying to Mass Fusion will make you a permanent enemy of the Brotherhood of Steel.

If you decided to inform Brotherhood then go to Boston airport and talk to Proctor Ingram. It will start new quest - Spoils of War.

4. Locate the Beryllium Agitator

The Institute is after something called a "Beryllium Agitator" from the ruins of Mass Fusion. I should relay there as soon as possible.

5. Proceed to the Reactor Level

5.1. (Optional) Restore Power to the Elevator

6. Retrieve the Beryllium Agitator

After fighting my way through Mass Fusion, I've arrived at the Reactor Level. I now need to find a way to remove the Beryllium Agitator from the reactor.

7. Unlock the Reactor

8. Take the Beryllium Agitator

9. Eliminate Reactor Level Security

10. Exit Mass Fusion

With the Beryllium Agitator in hand, I should head back up to Mass Fusion's lobby and exit the building.

10.1. (Optional) Assist Institute Forces in the Lobby

Brotherhood soldiers are trying to prevent me from leaving with the Beryllium Agitator. I could help the synths fight them off, or I could leave the building as fast as possible.

(Optional) Assist Institute Forces in the Lobby

11. Speak with Allie Filmore

I've successfully helped the Institute fend off the Brotherhood's attack on Mass Fusion. I need to get the Beryllium Agitator to Allie Filmore.

12. Quest completed

The Beryllium Agitator is now safely in the hands of the Institute, ready to help bring the reactor online.