My favorite way to replay Doom 1 is a WAD that replaces Doom Guy with Hank Hill from King of The Hill and the chainsaw with a lawn mower.

God I miss you Shepard

I have my copy of Black Mesa modded to Hell and back with Workshop Content I've fiddled with for hours to get to all work correctly and I can confirm
This is my favorite way to experience the story of Half-Life 1. I never get tired of replaying through Black mesa