Deep maintenance Z level

[Soleil]

I've brainstormed about this with a few people over the years, it's a really unique idea and could be fun, but each time the actual code part scared me off. My idea was always like, some sort of vent system you could crawl into that served as a very narrow Z level or something thats overlaid over the map somehow, so you could for example hear people fighting and dying in the vent system while standing in Medbay and it would do the clonk clonk as you walk through.