Fallout 4 Old Guns quest guide - How to get the artillery defense system (2024)

After defeating the giant Murluck Queen and taking back the Castle for the Minutemen in Fallout 4, Ronnie Shaw will ask your help to arm the occupied monument with defenses against Raiders in the Old Guns quest.

There are a few steps to this quest, so we’llgo overeverything you need to complete this mission inFallout 4.

Old Guns Fallout 4 quest guide

Locate Ronnie Shaw and speak with her

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After completing theTaking Independencemission, head over to the courtyard of the Castle to find Ronnie, a veteran Minutemen wearing a green uniform, holding a musket. Introduce yourself to her, and she’ll inform you about a security room underneath the Castle that unlocks the entrance doors to the armory. Luckily for Ronnie, she knows the way in.

Gain access to the tunnels

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Follow Ronnie to the western section of the Castle to find the security room through the underground tunnels. However, upon arriving, the entrance will be blocked off by rubble. Enter the Workshop Mode and scrap the rubble to forge a path to the tunnels. Once the rubble is scrapped, continue forward with Ronnie taking the lead as the quest will not advance if the old gal doesn’t tag along.

Explore the tunnels

The tunnelsare filledwith precious supplies, including a fewFusion Coresand Fusion Cells for yourPower Armor, guarded bylandminesandsentry turrets.Since the tunnelsaren’tdeep, navigating through them isfairlyeasy. As for Ronnie,she’san unkillable character, meaning the defenseswon’timpact her.

Defeat Sarge and unlock the security door

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At the end of the tunnels is the locked security room holding access codes to the armory with a sentry bot waiting to defend it. The sentry bot is known as Sarge holstering dual sentry guns on its back. The easiest way to get rid of the bot is to throw explosives at it or use a high-tier weapon such as the Spray n’ Pay to deplete its health. Try to stay in cover using the brick pillars when Sarge starts firing.

Once Sarge is defeated, head back to Ronnie at the end of the tunnels to access the security room. Inside the room, Ronnie will enter the codes to the armory that will give you access to the artillery defense systems in the Old Guns quest. You can also loot the Minutemen general outfit from the corpse lying inside the room.

Access the armory

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Now that you’ve inserted thecodes,head backthe way you came in to find the steel door for the armory unlocked. Head inside the armory to find the parts for the artillery and some good supplies, including ammunition, explosives, and resources.

It won’t count towards stealing if you takethe supplies from the armory, so feel free to loot as much asyou can.

Setup the artillery

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Take the schematics for the artillery and head over to the small hill above the armory to find a circular spot for setting up the defense system. To craft the artillery, you’ll be required the following supplies:

  • Four Oil
  • Four Screw
  • 16 Steel
  • Four Concrete
  • Six Gear
  • Five Spring
  • Four Wood

You can acquire all these resources from the armory except for Wood. To find the resource, roam around the Castle and pick up a few brancheslying around. Once the resources are collected, open theWorkshopand scroll toSpecialto find the artillery.Placeit in the designated spot to further progress with the Old Guns quest inFallout 4.

Test the artillery

With everything now good to go, assign one of the settlers to the artillery and head out of the Castle to test the newly crafted defense system. Throw a smoke grenade in an open area to signal the artillery of a threat. A blue smoke will erupt from the grenade, followed by six massive explosionsin the vicinity.

Speak with Preston

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The last objective to end the Old Guns quest is to speak with Preston. Open up your Pip-Boy and search under the Settlers tab to find Preston. Inform Preston about the artillery defense report to end the quest inFallout 4. Onceyou’vefinished the mission,you’llfindRonnie Hsaw as a vendor in the Castle and unlock the schematics to create the artillery in your settlements.

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Fallout 4 Old Guns quest guide - How to get the artillery defense system (2024)
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