Last Official Secret of 'Doom 2' FOUND!

It's been 24 years since the release of Doom 2 and everyone knows of all of the hidden easter eggs by now. Some thought only obtainable through cheating.

Well, the last official secret has been revealed. Thanks to player Zero Master who figured out how to do it by drawing a Pain Elemental out into an area, where the Pain Elemental pushes the player into the secret!