(If he's silent, it's because you need to make a SNDINFO lump, I'll get back to you on this if you can't figure it out.)Can't double-check this right now so there might be an error somewhere, but this should point you in the right direction at least.
Since we're using a pk3, you can convert them into truecolour png files that don't need a palette - this way this same file will work for the cyberdemon in any game.
Make two new folders in your pk3, called sprites and sounds.All these have been improved since the original pack (No more one-eyed Cacodemon), and 1.2 adds the Revenant, Zombieman, Doom Guys gloves, and Doom Guys hair.
ORIGINAL DOOM MONSTERS MOD
Let's do a pk3 because it means we can use png for images. Classic Colors Skinpack 1.2 Description: This mod changes some of the Doom 3 monster colors back to match their original Doom 1 and 2 counterparts.The Imp, Pinky, Lost Soul, Cacodemon, Mancubus, Arch Vile, and Hell Knight are changed. We don’t want anyone to miss out on the maximum that Doom 2016 has to offer in evil-blasting fun, so we. Make a new empty wad or pk3 (zip) archive. Since the original Doom game hit the market, gamers worldwide have developed a taste for demon blood, and Doom 2016 is the latest buffet of demonic guts and gore.To get the cyberdemon into Hexen, as an example: