Raider Troubles

Raider Troubles at (location) is a Minutemen radiant quest in Fallout 4. This quest can be started randomly when speaking to Preston Garvey or listening to Radio Freedom. If a settlement hasn't been unlocked yet, this quest may be started by speaking to a settler at that location and it will unlock the settlement.

Failure to kill the targeted raider settler in a timely manner will result in the failure of the quest.

Quick walkthrough

 * 1) Speak to point of contact at settlement.
 * 2) Clear the raiders at random location.
 * 3) Return to point of contact at settlement.
 * 4) If quest started with Preston or Radio Freedom, return to Preston Garvey.

Possible settlements

 * Abernathy farm
 * Blake Abernathy
 * Greentop Nursery
 * Oberland station
 * Outpost Zimonja
 * Sanctuary Hills
 * Tenpines Bluff

Possible raider locations

 * Back Street Apparel
 * BADTFL regional office
 * Corvega Assembly Plant
 * Dunwich Borers
 * Hardware Town
 * Thicket Excavations (after Pull the Plug has been completed)
 * USAF Satellite Station Olivia
 * Revere Beach station

Bugs
Sort of confirmation: The same problem happened when the target was BADTFL regional office.
 * No quest marker will appear on raiders inside Back Street Apparel, quest would not update despite clearing Backstreet Apparel. Cannot finish this quest, possible work around is killing the settler quest giver at Oberland Station and turn in to Preston but will mark as failure on quest list.
 * Should you have to help Covenant after completing Human Error and leaving the citizens alive, Jacob Orden will be the npc to speak to, only he wont have any voice acting, and after you clear the raiders, you will not be able to turn in the quest, as he will just comment on your completion Human Error.