The screen shake on the right-click for Bardin’s Grudge-Raker is a bit extreme (may be the same for Kruber’s shotgun, I honestly don’t remember XD). Just a suggestion to remove the jerky motion when you right-click. I use it mainly to crowd control or get back ammo in hordes and it’s a bit nauseating. I also can’t really think of a benefit to it.
In my pleb opinion, either removing it or tuning it down to almost nothing would just be an overall improvement in enjoyment of the weapon.
Edit - Also, why don’t enemies get staggered while they’re climbing / in their climbing or landing animation? Fatshark please.