Make PDD shoot unlimited numbers of missiles?

[Kabel]

I can´t find how to remove the energy cost per shot from the Point Defence Drone. So instead I give it 200 energy regeneration per second.

I want the PDD to completely stop all missiles. But it doesn't. Some times shots slip through, if there are enough units who shoots at it. If I target fire the PDD I can sometimes destroy it before it "reacts" and shoots the missiles. It is supposed to make the area around it completely missile proof.

How can this be done?

 

[Dr Super Good]

Change the way it works. Instead of a weapon that fires at a single missile at the cost of some energy, make it fire for free at all missiles within a wide area around it. No idea if periodic behaviour or weapon is more processor efficient but either works.

People at StarCraftIIMapster can explain the details if needed.