God I still feel so stupid every time I tell a companion to wait in camp.
The mechanics of party size is basically a moot point in face of how profoundly stupid it narratively is to leaving anyone in camp instead of having the entire party out at all times.
Full party use is truly what the game should have been balanced around.
Instead if we don't want to play as a team of idiots we have to use a mod to not moronically leave people in camp, then another mod to adjust the difficulty to make up for it.
And sadly all the mods I've seen difficulty are nothing more than stat boosts/nerfs for enemies/us, which is isn't a good way to increase difficulty