

We need to take this threat out if we are going to maintain our position in the Commonweath." Depending on where the SS is in the main quest they would point you to Nick Valentine - then you could come back for Molecular Level to build the teleporter at a raider base. Once you establish 8 raider outposts Shank comes in and says something to the effect of "We got a problem boss, we have been infiltrated by synths posing as raiders. Essentially a 5th full fledged faction to side with through the end game. Nuka World would have been better if the Raider faction would have been written into the main quest as someone you can use to combat the Institute and other factions.
