Butcher's Bill

Butcher's Bill is a Railroad side quest in Fallout 4.

Detailed walkthrough
After the Sole Survivor has completed Boston After Dark, Carrington will mention his concerns about two Railroad safehouses who were attacked at the same time as the attack on the Switchboard but whose current status has yet to be confirmed. He asks the Sole Survivor to look into the current status of the Augusta Safehouse.

The details of the location of the Augusta safehouse are contained in a dead drop which will be marked on the map. Its location varies and is determined by the radiant quest system. Travel to the dead drop, take the holotape from the marked container and listen to it to learn that the Augusta Safehouse is located at Kendall Hospital.

Travel to the hospital and explore the building to find a holotape containing the safehouse's last report. From the entrance, travel upwards until an elevator is reached. Take the elevator which will lead to a large, open room with makeshift walkways and wooden structures built around its perimeter. Once in this room, travel downwards using the walkways and stairs towards the quest marker. The holotape is in a desk, two floors down from where the large room is entered.

After collecting the holotape, exit the building and report back to Carrington at Railroad HQ to complete the quest.

The player character can exit the building by retracing their steps and exiting from the door where they entered. Alternatively, they can drop down to the bottom of the large room where the Augusta station last update holotape is located, flip the circuit breaker in the southeastern corner, and exit from there. There is a deathclaw hiding at the bottom of this room which will attack the Sole Survivor on sight - it may either be outrun or defeated.

Bugs
The dead drop may not appear at the noted location.
 * A possible fix includes progressing through other Railroad missions until given another safehouse mission. This may make the dead drop appear with both missions packages.
 * It can also be fixed via console commands on PC:
 * Add the note found in the dead drop:.
 * Set the current objective as complete:.
 * Advance the quest to the next objective:.
 * The bug can be avoided by not fast traveling and going out the escape way mentioned by the doctor.
 * The easiest solution is to load a previous save before accepting the mission and try again.