I played FO4 so much, sometimes I'd load it up and go on a BoS killing spree. Well, it'd start off as looking for patrols and sniping a core... then all hell would break loose.
Reinforcements arrive, shoot them out of the sky before they can even drop. Loot everything. Look for another patrol.
There was a mod I had on XB1 at one point that increased settlement attacks, I mean you'd have substantial groups of raiders attacking (fairly frequently) and several of them would have PA. Of course most of my settlements had at least a couple of people using PA and those that weren't had miniguns anyway.