This is sort of intended to show someone who's new to the game a really fast way to drop the Cyberdemon that I stumbled upon. Basically, you can spend most of the fight blasting it with micro-missiles until it dies. Fully upgrade the micro-missiles beforehand, obviously, but that's not too hard to do.
I've also got my ammo capacity upgraded to high hell, for the sake of unloading as many missiles as possible.
I slip up a couple times during the fight because I'm distracted, but I don't die, so that's chill.
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