Changes

#* Different difficulties give different medals, equipment and materials when clearing the maps.

#* Different difficulties give different medals, equipment and materials when clearing the maps.

#** Ships rewards (U-511, Katori and Amagi) will appear regardless of the difficulty.

#** Ships rewards (U-511, Katori and Amagi) will appear regardless of the difficulty.

#^ Difficulties ''probably'' affect drop rates, but ships still drop in any difficulty.

#* Difficulties ''probably'' affect drop rates, but ships still drop in any difficulty.

#* When the difficulty is changed, the boss's health bar will be reset.

#* When the difficulty is changed, the boss's health bar will be reset.

#* Once the map is cleared (boss HP bar is depleted and killed), '''you CANNOT go back and change the difficulty'''. 

#* Once the map is cleared (boss HP bar is depleted and killed), '''you CANNOT go back and change the difficulty'''.