Oh, I think I might have read that some time but maybe I forgot about it. Shame on me, considering I played through Hexen like 30+ times! It did have lots of moving 3D stuff, which wasn't really standard yet back then.
Hmm, guess I failed the fight then, or maybe he was 1 HP from dying when I facetanked that rocket D:
Autosaves do seem really important, though they alleviate that feeling of "oh, I saved 0.5 seconds before a rocket hit me and killed me, nice" that many old games had a bit...