I guess I found one.
At the last level, primary excavation, right before you enter the final stage to face the Cyberdemon (final boss). Use no clip in console, then go through the wall without being covered by bricks - that looks different then the others. It's the left wall to the 'id" sign.
You will find some easter egg behind the walll.
Let us know if you find more Easter Eggs.
At the last level, primary excavation, right before you enter the final stage to face the Cyberdemon (final boss). Use no clip in console, then go through the wall without being covered by bricks - that looks different then the others. It's the left wall to the 'id" sign.
You will find some easter egg behind the walll.
Let us know if you find more Easter Eggs.