Small craft and armoured cruisers demand different weapons. A ship facing smaller vessels benefits from numerous fast-firing guns, whereas fighting another cruiser calls for shells capable of defeating armour. The designer must then choose a main-gun calibre and balance it against the lighter battery rather than optimizing both without limit. Expected opponents turn a broad cruising role into a concrete armament layout.
Notable Point ยท 39:01-39:28
How expected opponents determine cruiser armament
Fast-firing weapons suit smaller targets, while cruiser combat requires armour-piercing power and a deliberate balance with the main battery.