I give good snipers credit. Some of them have amazing stick control to pull off some of their shots. I enjoy using the run and gun style so I personally prefer shotgun. It usually takes me a minute or two to get a feel for how the other team is going to play so I can figure out how to flank their snipers with my shotgun. It was easier prior to the range and accuracy nerf of shotguns but it is definitely still a viable okay style. I need a doctrine to pair with it so I can get tea bagged even more :). People like to tea bag after they kill me right before I get the shotgun shot off even though I just killed their teammate or two prior to my demise.