When Freedom Calls

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

Quick walkthrough

 * 1) Take the laser musket (optional)
 * 2) Locate the trapped people
 * 3) Talk to Preston Garvey
 * 4) Unlock the gate
 * 5) Find the fusion core
 * 6) Eliminate Concord's critters
 * 7) Report back to Preston
 * 8) Join Preston in Sanctuary Hills