Current system does not make any sense: fully fortified sanctuary has people crying how they have to run and hide every time they see super mutant, really breaks immersion. My dream mod would be that if your defence is too low those kidnapping quests would appear. Then those "new settlement-quest" would only appear when you have enough happiness in certain amount of settlements. There will be a point in game when you have successfully made every settlement impenetrable, which would stop repeating quests. Really big time-sink, but rewarding feeling when you finally can go and tell Preston to shut up. Also, i really like SirTwist's idea of settler using armory to gear themselves. Armory could be upgradeable or it could just use leftover gear from player. There could be also be a lot more variety on type of quest you get, since now it's just kidnapping or rats across the map. You could have quest where you supply-lines are being raided, water contamination, sabotage, rebellions if happiness is too low (which also need modding, because it's currently too easy, at least in normal-difficulty).
