Confirmed Bear KillsEdit
In all non-gameplay recording of the Shotgun's use, it has been used once. When Sunbeam is fleeing wounded through dark forest, Naughty Bear comes up behind him, pumps the gun, then shoots the terrified Island Resident off-screen, fluff can be seen in view.
Real World ReferenceEdit
The Shotgun weapon used by Naughty Bear in the trailer seems to be a "Remington 1100 Tactical Shotgun, 12 Gauge."