Removing a certain type of basement

I’m making a little minimod for my own playthroughs and I wanted to remove that type of basement with the survivor zombies and three rows of horizontal metal racks loaded with guns and ammo. I feel like it’s too common and devalues the benefit of raiding gunshops. Does anybody know how to go about stpoping it from spawning?

Its pretty easy actually. You first search for the basement entry in overmap_terrain.json, and then delete this line:

{ "method": "builtin", "name": "basement_guns" },

Thanks a lot, I was looking for it in mapgen.