The reason I picked 30k radar dampening was as Hearteater said explictly:
It is meant to allow all but sniper type shots to continue as normal. It prevents the player from being able to pop them while sitting at the wormhole but in return it prevents ai waves from popping forts because the logic loves to send alpha strikes to a single target, so with larger waves you start having a random chance for forts to simply be annihilated.
