Four naval-industrial cities for a stronger Soviet fleet

Where should four major shipyards be placed to support a stronger Russian or Soviet navy?

One integrated naval-industrial city should serve each of the Far Eastern, Baltic, Black Sea, and Northern fleets.

The proposal places a large integrated yard complex in the Far East, Baltic, Black Sea, and north. Each site would be a naval-industrial city rather than a pair of isolated slips. Many building ways and dry docks would sit beside armor, armament, and component production. Standard machinery and weapons could then support theater-specific fleets ranging from destroyers to battleships without creating four incompatible supply systems.