The carbine fires a little bit faster but if you do more than 105 damage with the shotgun its an automatic gib. Carbines are a long range version of the shotgun so I don't really see whats this is all about, if you don't like the carbine then don't use it and if you dont really care keep on not caring. I don't think the carbine is under powered its just how you use it and how good you are at dodging the shots because if you were to verse a person using a sniper to say and they were okay with there accuracy and not to bad with there movement (e.g.dodging) and you were good at accuracy and okay with movement and you were using the carbine there is still a chance of beating the opponent.
If you think the carbine is under powered use a different weapon because some people may think that the carbine isn't under powered and some will think that it is under powered so for now we should just leave weather its under powered of not its up to the Dev's because they created it and they can change it if they want.
If you think the carbine is under powered use a different weapon because some people may think that the carbine isn't under powered and some will think that it is under powered so for now we should just leave weather its under powered of not its up to the Dev's because they created it and they can change it if they want.