*Fist bumps the sky* Yep, I'm in XD Hardcore doom veteran here, can't say I have every detail memorized, but I played doom back when I was little and still replay doom games to this day =3 If you're up for including custom ideas, creatures, weapons, vehicles, 'afflictions' [hellish influence on characters without becoming evil], Then I'm definitely your man for that XD loaded with ideas =3
Also, What level of doom are we gonna work with for starters? 1? 2? 64? Doom 3? or whatever else? =3 or more or less, Work it from the ground up with a 'doom world' being influenced by our own designs/customizations.