Video: Completing this map could be a bit tricky, if not impossible. Modder Marphitimus was disappointed by the lack of Revenants in the upcoming DOOM, so he made a map that probably satisfies the demand. That's 100,000 of them right below the starting point. Revenants and a bunch of other classic enemies. It's Doom 2, so a lot of them almost instantly kill each other with friendly fire, but that won't make the map easy.
Looks terrifying! And running this map probably needs a better PC than running the new DOOM does.