I keep hearing that the Sinking of Beleriand and Numenor are impossible, but for some reason I think I have an idea:
First off, you would need to get rid of all cities, improvements (roads and mines and the such), units, etc. This is the best part: sending a ton of invisible nuke units to hit all over Beleriand (have them all be Nature Civ units)! The glorious wrath of the Valar has come!
Now with all the cities/improvements/etc. gone, its time for some massive terraforming.
You know how Workers can cut down a Forest tile and it becomes a Grass tile? All its doing is converting a specific tile into another kind. Could this instruction be edited so that it can convert a specific tile into a Water tile as opposed to a Grass tile?
Is there a way to make an invisible Worker-like unit that can convert a certain terrain tile into a water tile? If so, have invisible, flying Worker units (also Nature civ) spawn at all non-water tiles in Beleriand, and they would begin terraforming on that turn.
The only problem is that you would need different workers for different tiles they appear on. You would need one that could terraform a Grass tile into a Water tile, or a Tundra tile into a Water tile, etc.
This "Sinking of Beleriand" would obviously be an Arda-only map event, set up for that specific scenario.
If the mass terraforming idea is impossible, then the least you could do is spawn nukes all over Beleriand!
