Even an excellent missile compromises around the dimensions of its vertical launch system (VLS) cell, the warhead it must carry, and its intended targets. Operating altitude also affects engine design. Repeating one design across a fleet repeats its limitations. Enhanced Sea Sparrow provides a second missile type aboard a ship, while allied systems such as Sea Viper and Sea Ceptor add further defensive problems. Those alternatives complicate an opponent's preparations, especially when allied ships fight together.
Chapter · 36:01-38:16
Missile diversity complicates an enemy's solution
Different defensive missiles across ships and allies force attackers to account for different missile designs and their limitations.