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Master the Military Base and Cathedral in Fallout! Get step-by-step instructions, checklists, and tips for infiltration, combat, and completing quests. Your ultimate Fallout walkthrough.

Alright, let's get you through the Military Base and the Cathedral in Fallout. This section is all about making sure you've got the right gear and know the plan before you dive in. Think of it as your pre-mission briefing!

First up, you'll want to head to Level 1 and have a chat with Talus. Tell him you're done with his quest and ask for your reward. Don't be shy, pick whatever you like, but if you haven't snagged Power Armor yet, that's a solid choice.

Next, make your way to Level 4 and find Maxson. You'll want to talk to him about the war and mutants. Offer to scout the area to the north for free – it's a good way to get things moving. If you're short on supplies, now's the time to ask him for some weapons. After that, pop back to Level 3 and see Vree. Ask her about the mutants and make sure you get that holodisc if you haven't already.

Now, head to the outside Brotherhood entrance and save your game. Seriously, save it. Then, leave the area and scout northwest. You're looking for an area marked with a green circle – that's your entrance to the Military Base.

Military Base / Cathedral Checklist

To make sure you're fully prepped for the Military Base and Cathedral, follow this checklist:

1. Ditch your NPC companions. This is super important for certain approaches.
2. Grab the COC robes and Vree's Mutant Autopsy Disk. You'll need these items.
3. Pack both standard and electronic lockpicks. You never know when you'll need to bypass a lock.
4. Suit up in your Power Armor and ready your combat shotgun. Put the shotgun in one of your item slots, but don't have it as your active weapon for infiltration.
• *(This applies only to infiltration approaches.)*
5. For the cowboy military base approach, you can ignore step one. Your NPC companions will likely be dead by then anyway. If you're planning on heading to Necropolis for the water chip or want to finish the Boneyard level, don't stress too much about ditching your NPCs. Alternatively, you can leave them outside the base and pick them up later after you've cleared out the mutants.

Important Notes:

• You have to ditch your NPCs for the infiltration approach. If you bring them along, the Super Mutant guards will attack you.
• Just destroying the mutant threats is enough to beat the game. You don't actually need to find the water chip!
• You can tackle the Military Base first or the Cathedral – the order doesn't matter.