You have to be up close and personal. In a nightfall that means death. You can only hit one monster at a time. It deals a ton of damage but then you have to readjust, due to recoil, to aim for the next enemy. If you're getting rushed by Thrall you, and if it's lightswitch, consider yourself as good as dead. Wouldn't be good against bosses due to ground slams. No good against shields. No good against an enemy that is spread out, hiding behind walls shooting. Great during patrols if you want to run towards the enemy. I would rather stay back to get a good picture of what's around me. How to fix the shotgun: make the bullets spread more. Let them over penetrate to get more than one kill at a time, if the enemy is running towards you in a group. You can add a perk that let's you over penetrate and a sawed off perk for spread.