If i may go back to the first post real quick for a minute...
How did you get Hardened Skin to work for artillery attacks? Am i missing something? No matter what i try, i can't get it to work for artillery. And no, i didn't forget to remove the research requirement on the ability.
I would also really like to avoid using DDS, despite what everyone says. Am using the method SAUS mentioned with the timer for the moment, but i just want to prevent damage, nothing fancy. If i could get Hardened Skin to work for artillery i wouldn't even need triggers.
Also tried using Spiked Carapace & setting damage received to 0% like some people suggest, but for some reason that doesn't work for anything, normal ranged or artillery. Probably only works for melee attacks, but there's no melee in this map.