If you want advanced weapons, powerful armor, and a strong military faction at your side, joining the Brotherhood of Steel in Fallout 4 is one of the best choices you can make. This faction is disciplined, technology-driven, and determined to bring order to the Commonwealth. However, becoming a member is not something that happens automatically. You must progress through specific quests and prove your value.
Understanding The Brotherhood Of Steel
The Brotherhood of Steel is a technologically advanced military faction that believes dangerous technology must be controlled. They value strength, loyalty, and discipline. In Fallout 4, the Brotherhood arrives in the Commonwealth under the leadership of Elder Maxson.
Joining them provides several benefits:
-
Access to powerful energy weapons
-
Use of Power Armor
-
Unique faction quests
-
Strong companions like Paladin Danse
-
Military support in major battles
Before you officially join, you will first need to encounter them during your exploration.
Step 1: Complete The Main Quest “Reunions”
The Brotherhood of Steel does not appear immediately in the game. To trigger their arrival, you must progress through the main storyline until you complete the quest called “Reunions.”
During this mission, you track down Kellogg in Fort Hagen. After defeating him and completing the quest, a massive airship called the Prydwen arrives in the Commonwealth. This signals the official presence of the Brotherhood.
Once the Prydwen appears in the sky, you can begin your path toward joining the faction.
Step 2: Start The Quest “Fire Support”
Before or after “Reunions,” you may hear a military distress signal on your Pip-Boy radio. Tuning into it will lead you to the Cambridge Police Station.
Here, you will find Paladin Danse and other Brotherhood soldiers fighting off feral ghouls. Help them eliminate the enemies outside the station. This begins the quest called “Fire Support.”
After the battle, speak with Paladin Danse inside the police station. He will thank you for your assistance and offer you another mission.
Step 3: Complete “Call To Arms”
Paladin Danse will ask you to assist him in retrieving a piece of technology from ArcJet Systems. Accepting this begins the quest “Call to Arms.”
This mission is critical if you want to join the Brotherhood. You will fight through synth enemies and explore the ArcJet facility alongside Danse. The mission includes:
-
Combat against synths
-
Navigating high-tech corridors
-
Activating a rocket engine test sequence
-
Securing valuable technology
Once the mission is complete, Danse will formally invite you to join the Brotherhood as an Initiate. Accepting this offer officially aligns you with the faction.
At this stage, you are not yet a full member, but you are now part of their structure.
Step 4: Travel To The Prydwen
After completing “Reunions,” the Prydwen becomes accessible. You will receive the quest “Shadow of Steel.”
Follow these steps:
-
Go to Boston Airport
-
Meet Paladin Danse
-
Board the vertibird transport
-
Fly to the Prydwen
Once aboard the Prydwen, you will meet Elder Maxson. He will formally welcome you into the Brotherhood and assign you your rank.
This is the moment you become a recognized member of the faction.
Ranks Within The Brotherhood
As you progress through their questline, you will gain higher ranks. These include:
-
Initiate
-
Knight
-
Paladin
Your rank increases as you complete major Brotherhood missions. Each promotion reflects your growing trust and responsibility within the faction.
Important Brotherhood Quests
To fully integrate into the Brotherhood storyline, you must complete several major quests, including:
-
“Tour of Duty”
-
“Show No Mercy”
-
“From Within”
-
“Liberty Reprimed”
-
“Blind Betrayal”
These missions involve combat against super mutants, synths, and even major moral decisions that can affect companions and faction relationships.
Can You Join Multiple Factions?
Yes, at least in the early stages. Fallout 4 allows you to work with multiple factions, including:
-
The Minutemen
-
The Railroad
-
The Institute
However, as the story progresses, you will reach a point of no return. Supporting the Brotherhood fully may cause permanent hostility with other factions.
It is important to create a manual save before making major decisions if you want flexibility.
Benefits Of Joining The Brotherhood Of Steel
There are several advantages to choosing this faction:
-
Access to Brotherhood vendors with high-level gear
-
Brotherhood Power Armor paint options
-
Vertibird signal grenades for air transport
-
Unique weapons like Righteous Authority
-
Strong military backup in the endgame
If you enjoy structured missions and heavy combat, the Brotherhood offers one of the most action-packed paths in Fallout 4.
