So I've been having this idea fro a map since I read this about king of the flayed hills: Hidden under the barren, stripped terrain of the Flayed Hills badlands are seams of iron, copper, and something even more precious: clean, fresh water, locked away in deep underground aquifers.
the idea would be to make a "mine" map.
The general idea would be that the fight would be inside the mine.
It would have a "roof" of rocks, eliminating the ability to to hit the top of the map, and instead hit rocks and be in the danger of taking damage.
a single beam of sunlight would come from the very middle of the map down to a pool of water centered in the middle.
around the middle there would be caverns intertwining with eachother, making it possible to flank the middle from every were.
a light source for the map could be glowing mushrooms doing some sort of interval of giving light, so you'd need flare guns to actually be able to see in the dark caverns. (also the harpoon could be useful for throing people into the rocks)
due to the idea of it being centered around a waterpool, it could be made into a king of the hill map so we get some diversity for the horrifying sandstorm.