Home Sweet Home

Home Sweet Home is a main quest and achievement/trophy in the Fallout 4 add-on Nuka-World.

Detailed walkthrough
This quest is obtained upon speaking to Gage after raising the final flag over the fifth of five parks at Nuka-World, cleared out during the course of The Grand Tour. He suggests that with Nuka-World firmly under raider control, it's time to expand to the Commonwealth, establishing raider camps at settlements. He instructs the player to speak to Shank in order to begin laying the groundwork for the undertaking.

At the entrance to Nuka-Town USA, Shank lays out the steps involved in taking over a settlement, which first requires driving off the existing occupants with either force or persuasion. The player selects a method, which gang to use in the assault if violence is chosen (Pack, Operators, or Disciples), and finally a location. Shank reviews his notes on the location, to determine if it's possible to attack the settlement, if some other business (such as a quest) needs to be resolved first, or if the occupants are merely beasts (which requires violence as wasteland creatures cannot be negotiated with).

Optional: The player can meet with Lizzie Wyath, Dixie, or Mason to obtain some grenades, to increase persuasion effectiveness, rile up existing settlers to attack each other, or draw wild animals to attack the settlement, respectively, along with recipes to reproduce the grenades. Lizzie additionally provides the Smooth Operator chem and its recipe, which acts as a less-effective variant of Grape Mentats (+3 Charisma and 10% better buying and selling power for 4 minutes as opposed to +5 Charisma and better purchasing power for 5 minutes) but purportedly with a reduced risk of addiction. This is initially dependent on which gangs view the player favorably depending on territory allocation in The Grand Tour, but ultimately the player can receive all of the recipes if they speak to the other gangs upon returning to Nuka-World before completing the quest.

The player proceeds to the location and secures it for the raiders of Nuka-World, using the workshop to build and plant a flag for the faction it will be handed to. (If violence was employed, the only flag that can be planted is the flag of the gang that aided in the assault.) The player returns to Shank in Nuka-World, who states the next order of business is to provide resources to the newly-minted raider outpost by strong-arming a settlement nearby the outpost. Shank makes a few suggestions based on proximity to the outpost and sends the player on their way.

At the chosen settlement, the player must meet with the leader and convince them, with either payment in caps or intimidation, to supply the nearby raider outpost. The effectiveness of persuasion can be increased and/or the caps payoff amount reduced by having other raider outposts nearby, use of the gangs' optional tools, or building a Nuka-World radio transmitter at the outpost.

Upon returning to Nuka-World once more, Shank informs the player that a raider named Sinner has caught wind of their activities and is planning to attack. The player must return to the Commonwealth a third time and head him off. They can either drive him off with a hard Charisma check or with violence. The latter option may prove difficult as some of his allies will be wearing raider power armor. After dealing with Sinner, the player returns to Nuka-World.

Shank mentions that keeping the gang members happy and loyal is the next step, providing suggestions for objects to build to do just that. At this point, it becomes possible to send Shank to the outpost as a resident, saving the player the hassle of having to keep returning to Nuka-World to carry out outpost operations.

After building enough objects to keep the occupying raiders entertained, the player must return to Shank to learn the final piece of the puzzle, which is securing two additional outposts improve the raiders' presence in the Commonwealth. The player must repeat the steps in setting up the first settlement two more times, which in turn will unlock the second rank of the Wasteland Warlord perk and additional items to build. After the third outpost is established, the quest is complete and Power Play begins.