The Old Guns quest in Fallout 4 is a pivotal faction mission for the Minutemen that grants players access to heavy artillery support across the Commonwealth. Triggered after retaking The Castle, this objective unlocks essential defense capabilities and introduces crucial characters. Completing this quest elevates your faction presence and provides strategic tactical advantages in future encounters.
Starting the Old Guns Quest at The Castle
To initiate the Old Guns quest, players must first secure the Minutemen stronghold and wait for Radio Freedom to broadcast the assignment. Speak with Preston Garvey or head directly to Ronnie Shaw, a veteran Minuteman who arrives at The Castle to help restore its arsenal. Ronnie will inform you about hidden armory supplies sealed deep within the fortress's old bastion structure.
Navigating the Tunnels and Clearing Barriers
Ronnie leads the player toward a blocked doorway inside the courtyard that requires clearing rubble using the settlement workshop menu. Once inside the dark tunnels, navigate carefully to avoid automated security turrets and Frag Mines scattered along the path. At the end of the corridor, players encounter a hostile Sentry Bot named Sarge protecting the inner vault entrance.
Accessing the Armory and Crafting Artillery
After defeating Sarge, follow Ronnie through the security doors to access the long-lost Minutemen armory filled with weapons, ammo, and schematics. Retrieve the Artillery Schematics and Smoke Grenades located on the main table near the central terminal. Head back outside to the courtyard, open the workshop menu, and build an Artillery Piece along with assigning a settler to operate it.
Testing the Minutemen Artillery Power
To finish the quest, Ronnie requests a field test to ensure the newly constructed artillery functions properly. Travel to the designated test target area outside The Castle walls and throw an Artillery Smoke Grenade at the target building. Tune your Pip-Boy radio to Radio Freedom and watch as heavy explosive shells rain down on the coordinates, confirming the mission's success.
