Quake Dissolution of Eternity E2M1 on Nightmare

No-commentary playthrough of Quake I expansion Dissolution of Eternity on Nightmare difficulty, E2M1 - Tempus Fugit. I must have played through it last time I played Quake, because I remembered how to get the nightmare difficulty unlocked, although the levels themselves aren't familiar. This version of Quake is at https://store.steampowered.com/app/23... - I'm not trying to sell it, and I don't get any money if anyone buys it. I'm just sharing it in case anyone cares.