Shotguns were around during world war one, when Ace of Spades is based, and so would keep the games theme unlike some other ideas on the forums. Shotguns would only be used to CQC (Close Quater Combat) but would have higher damage than the smg and longer reload time. I sugest they would do 50 damage at close range and 100 for a headshot. They would also spray, so could kill more than one person at close range! The possible skin for it could be the trench gun and Iron sights would be, like a lot of shotguns, barely any help, to incourage CQC.
Please leave a comment on what you think about this idea!