I really don't see many issues with PvP. No I don't use a shotgun often either. There are ways to counter things. Playing with friends helps as well. Fusion rifles are a bit annoying but shotguns not really. That's why u use your radar and learn to read it correctly. Honestly I think people just have a hard time adapting to situations. There are a few maps that I hate because it caters to the shotgun users but meh. To each there own I suppose.