[Q]

Originally posted by Alneyan:
I tried the same thing, and it didn't work either. I am not sure why though. Does it mean this project is broken, or it is too weak to destroy a weapon platform with a single project? As the "Effect Amount" is 1, I would believe the project cannot work properly as for now, but I may be wrong.

I can confirm your results and I believe you found a bug. Send it to MM. In my mod the effective amount for the "cargo maintenance project" is 5 and although I get the message that 3 projects were successful and units were destroyed nothing really happens. The cargo of the targeted planet has mines, fighters, sats and weapon platforms.
But this bug has nothing to do with the ability "decrease bad intel chance": Even if I remove the facility with this ability the results is the same. And if I use the "industrial sabotage" project instead to destroy facilities on a specific planet then the ability of -90% chance will give no protection and the facilities are actually destroyed.