I had an idea where you would sneak out of the facility as long as all the nukes have been disabled, and the camera would pan out to third person and zoom out with credits rolling and our character walking off into the distance (empty, or with city in distance.). Helicopters would fly overhead (implied to be Chaos Insurgency.) I also thought the endings could randomly be at night too or raining. I also think Gate A is a little empty and there should be green hills and a road in the distance.