"The last Styx Missile! The previous five missiles have all hit their targets!" The weapons officer reported the status of their warship to the captain on the bridge of Beiyuan 91 Destroyer.
Early destroyers, and even later ones, were often incapable of reloading anti-ship missiles at sea. This was simply because the missiles were too large, and warships retrofitted as missile destroyers could not accommodate an additional loading system.
Moreover, a destroyer being able to fire all six of its carried anti-ship missiles was already impressive, akin to Emperor Qin Shi Huang cutting power lines and claiming victory. Theoretically, they wouldn't usually get enough opportunities to fire all these missiles before being sunk.
However, due to the overwhelming advantage in weapon technology, the Tang Army destroyers faced issues that most missile destroyer captains had never considered: their anti-ship missiles had... run out.