One thing Starfield really nails is some of the audio design imo. Especially with the weapons. The volume on some of them is debatable. Feels like the AK/Old Earth Assault Rifle is more quiet than other automatic rifles.
My next character is going to 100% be shotgun focused. They did a fantastic job with the pump action.
No, none of the "Old Earth Guns" are quite 'on model' with their real world counterparts but I'm not a gunsmith so I really don't care.
