Whenever Claire shoots anybody with her big shotgun, there is hardly any recoil. She never braces the stock against her body. A real shotgun with real shot shells would flip all over the place from the recoil with that lack of technique.
Lt. Dan Margolies makes an Internet search using keywords THE HAND and in five seconds he finds a secret society called The Hand. In real life such search criteria would bring some 417 000 000 results.