If you bring 30 Heavies into a width of 30, only 10 fight. If you bring 30 Lights, all 30 fight.
In naval combat, the key factors are:
The year is 480 AUC, and the Roman Senate has a problem: Carthage . While our legions are masters of the Italian soil, the sea remains a Carthaginian lake. To break their stranglehold, the Republic must master the art of naval composition. The Foundation: The Mosquito Fleet imperator rome navy composition