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1) The fifth mission of the second campaign in the original Heroes of Might and Magic doesn't work as intended. In the original game, when exploring the map, the fog of war didn't automatically dissipate as Agrael moved on the ship. In your version, it does dissipate automatically, so you can sail straight to Tier and the mission becomes much easier.
2) The Fortress on the hill doesn't require any money to upgrade creatures. Is this intentional?