When Freedom Calls

When Freedom Calls is a Minutemen main quest and achievement/trophy in Fallout 4.

Detailed walkthrough
During travels through Concord, the Sole Survivor will spot a man protecting a group of people from raider attacks on a balcony of the Museum of Freedom. By the doors below the balcony is a short laser musket and some fusion cells for the taking. Clear any foes from the streets before entering the Museum.

Fight through the raiders and head upstairs. On the second floor, meet Preston Garvey and the remnants of his Minutemen forces. While here, be sure to pick up the Perception bobblehead and the RobCo Fun magazine, containing the Atomic Command holotape. Agree to help them crush any remaining raider opposition in town. Drop to the ground floor and into the basement. To unlock the door, one can choose to either hack the terminal or directly pick the lock; both are of novice difficulty. Once the door is open, grab the fusion core inside.

Head upstairs and onto the roof to find a suit of T-45 power armor. Insert the fusion core into the power armor and climb inside the suit. Next, take the minigun from the Vertibird. One can either remain on the roof for more protection or jump off of it into the fray. Begin killing the raiders; once Gristle—the only named raider—is dead, be sure to pick up the Corvega storage key from his body. After killing a number of raiders, a deathclaw will spawn. Although it looks menacing, the power armor and minigun should prove helpful.

Once all of the enemies are dead, re-enter the Museum of Freedom and speak to Preston Garvey.

Bugs

 * Preston Garvey won't talk to you after reaching Sanctuary, the quest cannot be finished.

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