Head through the Gauntlet of Samson and into the Bastion of Faith.
Attach Repeater Unit to Radio Tower in Griffith Park
Go back to Santa Fe and get your upgraded rad suits from Woodson. This will trigger an attack from Dugan’s robot workers, so kill them and head back out to the wasteland.
Go to the north Hollywood marker on your map (with rad suits equipped). When you get there talk to the merchant about directions and he’ll give you an overview of the town.
Go up the main road to a blocked path and you’ll hear Mattias calling from a TV set. Use Brute Force or an explosive to blow up the rocks (use Perception and you’ll see them sparkle). Go into Griffith Park and the Bastion of Faith without going through the Gauntlet of Sampson.
If you want to fight and gain the XP go back down the crossing past the merchant and enter Los Feliz. Talk to Edwin and choose to join God’s Militia – he’ll tell you to talk to the guards at the gate. When you do, take the Aspirant cue and ask about the Gauntlet. Then use the Try cue and go through the gate. You need to be careful here, of enemies and of mines.
At the end of the Gauntlet you’ll get one final test. Take the bible and kill one of the brothers for them to surrender. Accept the bible from the Priest and use the switch on the right side of the door to get into the Bastion of Faith.
If you went underground to Bastion you just need to talk to Ascension McDade in the building. He’s the priest in the center of the room.
Tell McDade you want to join the Church Vigilant. Accept his offer and select ‘radio’ when he asks you what you want. Use the Simms conversation cue during this exchange as you’ll need to know this name for a later quest. Go to the main door of the Bastion and at the side you’ll see a fence with some guards. Don’t enter as it will trigger an attack. Use lockpicking through the hole in the fence and select the display case with the eyeball in it. Take the eyeball and go back to the Bastion.
Talk with Fealty Mayweather about her black eye. If you have a big Kiss Ass level you can use the Ring cue, then bring up Simms, show her the eye and tell her Sanctity killed Simms. She’ll get you evidence about Mayweather which you should return to McDade.
Go back to Fealty Mayweather at the chapel and watch the cutscene. Speak to McDade and take the key from Mayweather’s body to head out of Bastion to the gated area where you took Simms’ eyeball. Use the key, enter the new area and go up the path until you find a heavily guarded gate. When it opens attach the Repeater Unit to the tower and you’re connected to the Ranger Citadel.