If you removed rust from underhive builds then you’d invalidate 90% of the builds out there!
I get what’s meant though. I often wonder quite how corroded is the Underhive? It can’t be too far gone else structural integrity would fail and whole structures would just crumble.
Likewise should some areas be overgrown with plant life? Partially, yes. Totally, probably not.
I do like seeing scatter terrain though and plastic bags seem perfectly in keeping with the Underhive as a massive dump. Likewise ancient “archeotech” like CRT TVs etc seem fine - I’ve been thinking of ways to add such stuff to breath life into modular builds without going down the whole sculpted tile route (storage issues).
I would think the (DAOT Era?) superstructure of a hive is probably stable on geological timescales, but not necessarily all the bits and bobs and crap that people bolt onto it...
Plascrete and Ceramite obviously need a certain amount of technological ability (more than our own), but anyone with a late Victorian understanding of materials science could be casting iron girders and hot-riveting bulkheads.
I think graffiti is a given: people were dabbing on walls 40,000 years ago and probably still will be in another 40,000, particularly this imagining of it.
There may be self cleaning clothes, stasis pantries and self-adjusting contour couches in 40k, but not at *this* end of the Hive - downhive I like to think that our 20thC conveniences represent a kind of technogical minimum.
Plus on a meta level I find these things amusing in a non sequitur kind of way, and 40k/Necromunda is at its best when it's a little bit funny and parodical, imo.
What works for me with scatter and objective bits - the smaller ones at least - is a plastic organiser box that's separate from all of my other terrain.
Computer consoles, binbags, traffic cones and ammo crates go in there so after I've set the basic table up I can visually define objectives and also 'flavour' the table. The small briefcase sized organisers from wickes/Stanley are good for this and are stackable if you buy a few. I keep my 40k armies in them.
You can certainly have too much of it on the table, but I think scatter terrain is a good investment. Red barrels never go out of fashion.
