Angel of Doom (or Original or something like that)
Been thinking about this - perhaps Angel of Classic Doom.
Armor Shards spawn a lot more (and give +5% armour), you have inventory space for one of each weapon, and one stack of each ammo, up to the maximum in classic doom.
On a new note (though I haven't read the entire thread and I could be copying):
Angel of Estrogen:
Female players unite! DoomGuy? Are you kidding me?! DoomGirl saves the day in this challenge.
+x% chance to dodge
+x% to reload time
-x% to health
-x% to overall damage resistance
OR perhaps give the player an option, after beating N! or somesuch, of being female in ANY of the games for the same bonuses.