I think I figured out the cause of the problem some of you are having. And did this all by just sitting on my ass right in front of this screen
So, many of you have reported that duds do not occur as often in the campaign as they do in the single missions. That's most likely because of the save.tmp file. If my memory doesn't fail me, that was the problem with bringing the lightnings back into the game. They did work in single missions but not in the campaign and this was somehow related to temporary save files.
Could anybody give more details about fixing this lightning issue? The same trick most likely is going to solve this problem too