Defiance Has Fallen Fallout 76 Quest
Related points of interest
Abbie's Bunker Appalachia / West Virginia
Camp Venture Appalachia / West Virginia
Fort Defiance Appalachia / West Virginia
Prior quests
To begin Defiance Has Fallen you must first complete Coming to Fruition.
Quest stages of Defiance Has Fallen
1. Find information about the Brotherhood of Steel
A cryptic message was sent by the Brotherhood of Steel years ago talking about Defiance having fallen. The people in the area didn't know what the message meant. But I have a lead... someone named Abbie.
You must complete Coming to Fruition quest.
2. Find the location of Fort Defiance
Abigayle Singh never had a chance to find the Brotherhood of Steel's headquarters... some place called Fort Defiance. But she did know the location of one of their bases: Camp Venture.
Go to Camp Venture and find the Letter to Tommy. The door / terminal to the main building is password-protected.
2.1. (Optional) Find the Command Center password
It's in the basement of one of the buildings.
Unlock orange doors with the Secure Storage Key and look inside for a note on a table called Command Center Password.
3. Get inside the Brotherhood headquarters
It turns out that the Brotherhood of Steel's Fort Defiance is actually located at the Allegheny Asylum, deep inside the Cranberry Bog.
Go to Fort Defiance and enter the building.
4. Discover the Brotherhood's Fate
Try to open the metal door by pressing the red button.
I found Fort Defiance but the Brotherhood of Steel has security doors that are blocking it. And those doors need power.
Now that the power is back on, I can get inside the Brotherhood of Steel's base. Maybe now I can find out what happened to them.
Return to the ground floor, go inside and read the Final Stand.
After completing Defiance Has Fallen you will get or will be able to get Recruitment Blues and Forbidden Knowledge.