I may as well chronicle the various DOOM wads I play as well as Heretic, since I semi-regularly tend to get through them.
I always look forward to a new DOOMer Boards Project (or DBP). Ever since DBP26 - The City of Damned Children, which became one of my favourite WADs ever for its oppressive and dismal atmosphere, I've been in awe at the sense of 'place' these guys can get out of the 30 year-old idTech engine.
Immortal Warfare looked to do this, with its muted palette (another thing DBP26 did, albeit slightly differently) and ruined suburban scenarios. But I didn't like it as much as I'd hoped; although there's nothing bad here per se, most of it's alright. Okay. Standout map is the penultimate Fubar, which sees a hectic hot-start, a cleanup and key-gathering phase, and then outright slaughter in a neat package that the final map was utterly overshadowed by.
It's good, not great, and actually precisely the kind of mapset I was craving when I had a brief flirtation with Brutal DOOM some years back. Perhaps I should combine the two someday?
If I had to rate this, three seems unfair and four seems high. 3.5/5