I'd never taken Preston as a companion before, so recently I decided to pop his cherry and see how the old boy handles a spot of senseless violence and danger. In spite of my aggressive virtual whoring I'd never seduced any of the male companions, so I decided WTF, I'll throw him a bone (so to speak.) Now he calls me babe. In front of NPCs. Hmmm. Think I need a slider for that, I have more personal growth enabled than I can handle. (So to speak . . .) Maybe I'll try Hancock next. Once you go skinless zombie . . .
One thing I dislike about Fallout 4's companions is their wanton disregard for anyone who isn't me. Nick leaves his cute secretary, Preston leaves his flock (not that he actually did anything for them), Piper the ultimate goody leaves her freakin' pre-teen kid sister, MacCready can't even be bothered to take medicine to his dying child, and I can send them to any settlement except where they need to be. That's just wrong. And none of them are as good, or as interesting, as Willow. Well, maybe Nick, Nick is awesome.
Question for the knowledgeable: I never advanced in the Brotherhood quest line. Do I have to finish Show No Mercy? I have read that if I do that quest, the Brotherhood becomes very aggressive and insists that I kill the other factions (or at least the Railroad.) I want to get the "good ending" and keep all the good factions alive and peaceful, but I don't know how to get "From Within without doing Show No Mercy. This flow chart seems to say I can safely complete Show No Mercy.
http://gamerant.com/fallout-4-mission-tree/
Also, do I have to complete some Institute quests before ol' BR549 will summon me?