WTF. I played Plutonia Map 32 on "I'm Too Young to Die," and it was a nightmare. The arch-viles kept resurrecting enemies, and I had to kill multiple cyberdemons. I left maybe five of them alive when I hit the exit and still got 98% kills.
I had to keep saving my progress incrementally just to get through it. The map left me with a stress level that honestly feels detrimental to my health. I can't imagine playing it on a tougher difficulty.
I managed to barely get through this map on the second level of difficulty. Just like my "I'm Too Young to Die" experience, I had to exit before I got 100% of the kills.
I tried to get the monsters to infight in the big area, and this really saved my bacon. Eventually, I had to do some almost suicide-runs against the Cyber Demons.
There are too many "peek-a-boo" attacks in this map. You have to do it constantly. This becomes tedious.
Due to the extreme difficulty of this Wad, I'll probably stick to the second level of difficulty on my next playthrough.