[Captain Kwok]

So it turns out it was a simple error in percentage that was preventing the AI from putting PD on Frigates! Anyways, I also have the AI designing and in theory building dedicated PD ships. I'll need to run a quick AI game to see exactly what they are up to.

Regarding PD rates - I'll probably keep them the same. However, I'm going to increase their damage min-max range. The reasoning behind this is that missiles come in stacks and if you're going to reduce the fire rate then you're only ever going to hit the first missile and the second will always get through etc. If you can get one or two shots at each missile with a damage amount that is ~50% able to destroy the missile in one hit you'll get situations where sometimes the missiles are stopped or sometimes they leak through. This was how it was working more or less prior to the 1.08 patch.