Port capacity constrains fleet repair and deployment

The campaign turns port capacity into an operational constraint after damaged ships crowd Yarmouth for repairs. Larger harbors are needed, and vessels are redistributed because a fleet cannot remain effective when its bases lack room to service it. The scattered deployment also complicates concentration: battleships and torpedo boats end up separated across Atlantic ports while repairs continue. The game mechanics reflect the historical importance of dockyard capacity, forward bases, and repair time in determining where a navy can actually operate.