1. Talk to Preston Garvey
2. Build artillery in five settlement locations
3. Launch artillery strike on Prydwen
4. Destroy Prydwen
5. Defeat Brotherhood attack on the Castle
6. Talk to Preston Garvey
Locations to Explore
- The Castle
Putting the “Art” in Artillery
It’s time for the Minutemen to remove the Brotherhood of Steel as a threat to the Commonwealth. This quest is available only after you turn the Brotherhood of Steel hostile. Talk to Preston, and agree to build artillery defenses. You must build an Artillery Piece and then assign a settler to man it, in five different settlements you own.
Afterward, return to the Castle, speak to the Minutemen radio operator. Request that he gives the order to fire. Watch the fireworks. Then brace for a final assault from the Brotherhood of Steel. Repel these forces, and speak to Preston again to conclude this quest.
Reward: Vertibird Fast-Travel