Weaker storyline, but better choices: 4 major factions you can side with, and you can destroy them all if you want to. Fallout New Vegas is better than Fallout 3 if you want a more realistic approach to Fallout. However, if you want more “muh atmosphere”, Fallout 3 is better. Stay tuned for more Fallout Facts coming up sooner than. Jul 13, 2017  Fallout 4 Ultimate Faction Guide BRT Gaming. A complete and comprehension guide to which faction you should ally yourself with in Fallout 4. Fallout 4: 5 Evil Things You Can Do and May Have.

Major Factions

Once [Ring-a-Ding-Ding!] is completed, a moment comes when you have to choose a faction you'll be loyal to. You can choose one out of four possibilities:

1. Yes Man (Independent Vegas) - [Wild Card: Ace in the Hole]
2. Mr. House - [The House Always Wins, I]
3. Caesar's Legion - [Render Unto Caesar]
4. NCR - [Things That Go Boom]
5. Yes Man (Independent Vegas) - [No Gods, No Masters]
6. Mr. House - [All or Nothing]
7. Caesar's Legion - [Veni, Vidi, Vici]
8. NNCR - [Eureka!]

Each faction has its own questline (they are divided in this guide into the relevant chapters), but a lot of side quests are the same, because of need to choose (or destroy) other faction. You are able to eliminate, ignore or try to side with any of factions but you have the greatest freedom in case of the Independent Vegas. The other factions have their own specific plans for other groups and prefer that some of them are eliminated and some better join them.

Minor Factions

There are of course more Minor (or Other) Factions, but only these listed below count during the final battle for Hoover Dam:

• Brotherhood of Steel
• White Glove Society
• Omertas
• Great Khans
• Boomers

You don't have to take a decision right now. You can complete some initial quests for each faction and then decide which suits you best.

President Kimball

There is one more special chapter in this guide, which contains two quests dealing with the arrival of NCR president to the Hoover Dam. Almost each of factions has its own plans connected with the president and therefore you will have to complete one of two quests:

• [You'll Know It When It Happens]
• [Arizona Killer]

For the first one, your task is to protect the president and prevent the assassination, while in the second case you have to kill the president personally.

Hoover Dam

The last listed chapter deals with the final fight on the Hoover Dam. Depending on the faction you're loyal to, you will have to complete one of the four quests:

1. Yes Man (Independent Vegas) - [Wild Card: Ace in the Hole]
2. Mr. House - [The House Always Wins, I]
3. Caesar's Legion - [Render Unto Caesar]
4. NCR - [Things That Go Boom]
5. Yes Man (Independent Vegas) - [No Gods, No Masters]
6. Mr. House - [All or Nothing]
7. Caesar's Legion - [Veni, Vidi, Vici]
8. NNCR - [Eureka!]

We would like to inform you from the very beginning that this Guide is full of *SPOILERS* so only continue reading ahead if you don’t bother with the spoilers of the game. This Fallout 4 Ultimate Ending guide will help you keep all 3 factions after the Final mission.

A number of Fallout 4 Players wanted more than one faction to end with, but the game story didn’t allow you to. This Trick will help you alter some of the original game story and by the end of the final mission ‘Nuclear Option’ you will have all 3 faction – Railroad, Minutemen, and the Institute. If you still doubt it then have a look at the image below.

How to Get all 3 Factions

In order to get all 3 factions you need to reach to the following point for all the factions – Brotherhood of Steal, Minutemen, and Railroad:

• Railroad – Underground Undercover
• Minutemen – None active, but after the key point you will default to defend the castle quest
• Institute – Battle of Bunker Hill(Don’t shoot any turret and at the end free the Synths)

How to achieve the goal by completing this above active quest and save Paladin Danse in this process. All you need to do is go and inform the Father of the Institute that you decline his request and plans thus you will be banished by the Institute. Now you can actively fail the Underground Cover, but this will still keep Railroad as your Allies.

Talk to Desdemona, and she will ask you to use the Minutemen Army to defend the castle from the Synths. Go ahead and get ready to fight them, but remember what we have asked you to do(free Synths at the end). This way you can maximize your post-game to offer the most radiant quests after ‘winning’.

At the Final Mission, simply complete it anyway, regardless of which faction you choose. We choose the Minutemen to complete the final mission and here is the example we have. So Enjoy all 3 factions along your side even after completing the Final Mission.

Credit: Thanks to Brechnor from SteamCummunity.