Why do many guns have such a low PoK against aerial targets?
Anti-ship cruise missiles are extremely difficult to shoot down. And even if destroyed in mid-air, the missile may still cause serious damage if the warhead detonates at ranges closer than 500 yards from the target, or if the ship is hit by debris from a disabled missile. In the Falklands War, only one of six Exocet missiles fired at British ships were shot down, and this kill is not even 100% certain. Harpoon 3 Probability of Kill (PoK) is calculated for a burst of fire – this can be either just one round (for larger guns) or up to several hundred (for Mk15, AK-630 etc) – and the chances of hitting a target within a given amount of time. We are also taking into account limitations in the Harpoon 3 game engine. There is no separate range figure against aerial targets and we’re forced to use the max anti-surface range. This gives the defender a 1/3 to 1/2 longer range than in real life, and we have reduced the PoK even further to compensate for this.
