Recruit Deacon
First you need you the Railroad and Deacon prove before he joins you. But after the discovery of Railroad will start the quest spy craft.
Speak with Deacon and meet him outside of Boston in the Old Highway.
Follow him and talk to the tourists.
Step into the then military base on the escape tunnel. Alternatively, you can also use the main entrance, which is guarded but stronger.
Get your prototype by Carrington and returns to the Old North Church.
After a final conversation with Desdemona you stands Deacon as a companion available.
Deacon's strengths and weaknesses
Deacon is one of the best field agents at the Railroad and loves hidden proceed. Therefore you see him every time you meet him in a different disguise. Time with a bald head
Wigsen, sometimes with wig but never without his glasses he companion you on your journey through the Badlands.
Increase Deacon's relationship: likes and dislikes
The Railroad Agent is an affable chap and it may prefer to act in secret and wisely. Tried in his company also always nice to deal with other NPCs
hair pieces wigs, if you want to improve your relationship with him.