HoMM3 HD is a mod (add-on) for the game Heroes of Might and Magic 3.

Could you remind me, please, did the mod fix the generation of flooded zones, or am I mistaken?
And I'll ask again to add a sound effect for receiving a turn.

You're mistaken; just a couple of days ago, in one game on Diamond difficulty, it generated 2 flooded treasures. They were identified as non-functional teleporters.