Do share, why don't you use them? And I'd rather have more specific reason than "I don't like them" (which is a valid reason ofcourse), because I'm curious why don't you like them.
Thank you!
EDIT: Typo, and thank you for feedback. :p
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I prefer the stand-off provided by scout rifles. And at closer ranges I like hand canons. Shotguns in PvE require being essentially in melee range. That equates to my death in most cases. Hand Canon plus sniper, or scout plus fusion. Those are my go-to loads in PvE.