So I finally got to play it at my friends house. Since I put all my SPECIAL into Agility and Charisma I played it a lot different than him. And my GOAT was pretty accurate too, with Explosives, Small Guns, and Speak. I changed Explosives to Sneak though. I stole the key and password from the Overseer. And when I got to Megaton I just talked to the guy at the Saloon and he gave me the info on where my dad went. My friend watching got irritated cause he had to do a quest for him to get that information. But even still I didn't advance the story. I was doing quests for that woman. There's no such thing as Ghosts. I shouldn't be afraid of the minefield xD. Same what happened to the Sherrif though. I reloaded my nearest save to that point, but he didn't change anything. Oh well, at least his kid gave me a house.