Saves in RAIVENHOLM with Father Gregory’s Super Grav Cannon and Shotgun.
There is one who will not finish, if you want to shoot from Gregory’s shotgun, use all the cartridges from the machine gun or pulse cannon.
The shotgun does not automatically reload itself and therefore you must hold the reload button constantly.
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Shoots cartridges from a revolver and they have common cartridges.
If you do not see a slot for this shotgun after using all the ammo in the machine gun, then just turn the wheel in a quick change of weapon and you will see it.