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 medium to long range engagements where I can be a little bit back from the main combat and watch the flow of the game for tactical purposes. So, shotguns just don't fit my playstyle. I usually run with a sniper but if I'm on a small map and need some close ranged firepower I go for a fusion so I don't have to get right in the middle of the swirling shotgun melee.