The factory must grow, but only if you have the proper permits. Replace biters with complainers and weapons with bureaucracy.
Large total conversion mods.
New ways to deal with enemies, be it attack or defense.
Furnaces, assembling machines, production chains.
As such, we cannot legally demolish cliffs, due to lacking a military contract.
Both the tech and the recipe, I think.
Oops definitely an oversight on my part when I removed all military. Will add the cliff explosives back !