People who don't care for high enemy counts, how are you position when the first map of a .wad has about 400 enemies, but most of those enemies are zombies which you gun down rapidly and in score with your shottygun and chaingun?

Mostly running and gunning, some of them roam freely in a half-large area, some stay put and wait for you to show. They are occasionally backed by a few stronger enemies, but mostly it's weaker 'popcorn' enemies.