Crews had practical reasons to find space for extra torpedoes, depth charges or guns before going into action. That incentive applied across wartime navies whenever crews believed they could carry additional weapons. Retaining captured Italian machine guns is a hypothetical example of the choices combat experience could encourage. A listed fit therefore needs to be read alongside evidence of what a particular ship actually carried.
Notable Point · 1:11:32-1:12:39
Why wartime ships could carry more than their listed armament
A ship's official fit and the stores a crew took into combat could differ in any navy.