Road to Freedom

Road to Freedom is a quest in Fallout 4.

Quick walkthrough

 * 1) Follow the Freedom Trail.
 * 2) Continue following the Freedom Train.
 * 3) Search for The Railroad.
 * 4) Talk with Desdemona.

Detailed walkthrough

 * 1) Acquire the quest in Diamond City.
 * 2) Travel to Boston Common and speak to the Tour Bot
 * 3) Follow the red trail on the ground from location to location, looking at the markers as you go along until you reach the Old North Church.
 * 4) Inside the Old North Church, in the basement, there's another Freedom Trail marker with a ring that spins, turn it and press the button to spell the word RAILROAD.
 * 5) Once the door opens, go inside and speak to the people there, you can pass a difficult speech check to be told who they are first, or just tell them who you are.  When asked how you found out about them you can pass a speech check to lie, but there's no immediate obvious results of that.
 * 6) At this point you're introduced to Deacon, a spy who has heard of you, he vouches for you and you then get to discuss why you are there.
 * 7) You are then asked if you would risk your life for a synth, either way the quest will complete and you will be offered work by Deacon, but if you say no then Desdemona, the leader of the Railroad, disapproves.
 * 8) Once Road to Freedom is complete Tradecraft starts immediately.