Industry Arcos

 So the Heavy Industrial arcology: 1) Probably more pyramid shaped 2) usually not pretty, brutalist at best if in the city limits 3) Often both the oldest and youngest arcologies 4) Kind of staffed by the true working class, possibly immigrants 5) usually privately owned 6) Multipurpose: Makes aircraft, weapons, ingredients for other arcologies 7) Does not have residential areas *unless* it's an outpost, there we have some residential blocks, a main street, schools, etc. Might not have a greentower, possibly all imported food 8) If it's not a rudimentary "frontier town" arcology, probably has an inordinate amount of bars, casinos or other gambling devices, even brothels Any "corrections" or refinements or anything?