Mass-producing ocean-minelayer submarines for defense

The appearance of an ocean-minelayer submarine immediately suggests another large production run. The plan favors mass and geographic distribution over a small number of boats assigned intricate missions. Ordering one hundred at once lets the campaign place undersea and mine threats around many bases, complicating an enemy's approach across several theaters. The remaining construction capacity after the order demonstrates how industrial scale turns a simple submarine design into a broad sea-denial network.