Industrial Bomb Shelters in T2k

[Raellus]

I was quite surprised by the sheer scale of the Azovstal steel plant in Ukraine and, even more so, by its extensive (and deep) underground bunker system.

According to a diagram included in the article linked below, said bunker system was built to shelter the plant's 40,000 workers in the event of a nuclear attack.

https://www.thedrive.com/the-war-zon...al-steel-plant

Is this typical of large industrial complexes in the former Soviet republics, and/or in East Bloc countries (especially Poland)? If not, what made Azovstal a special case? If such underground complexes are fairly common, it opens up a realm of possibilities for T2k scenarios.

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