Action DooM! Easter Egg - Rest in peace - Lüt

On the level of your journey to the UAC facility (Use the idclev02 cheat to save time)
Make your way to the bridge. When you reach the point where part of the bridge seems to be breaking, look to your right. On a cliff-side, you will see a gravestone reading:

RIP
Lüt

Lüt was a member of the DooM community who we only realised had left when someone, claiming to be a relative, joined the forums to inform us all of his passing in a car crash.

RIP.