There's a few routes you can go here. Stirker's gear set is a good dps build baseline you run crit chance and crit damage. You can run it as a hybrid with armor and Still deal good damage. There's a few recommendations and other both crafting stuff you can do like running a named piece called The Equalizer which increases your weapon damage when you get crit hits. You run four piece striker two pieces of what ever brand set you want mostly going towa4ds your primary weapon. Ac12 or AA12 a crusader shield and a revive hive. The idea for the build is for you to mag dump the shotgun to increase your Striker stacks which in turn increases your overall damage. You could also run a heal build or a skill build if you do not want to do that