This modification of Lightwave Alice mod, as the original does, randomly replaces some of the monsters and items with those of Doom II. The difference is replacement numbers by percentage were modified to make it more "balanced", but get it, the idea is incorporate Doom II stuffs in Doom, not maintain balance essentially.
Zombieman and Shotgunguy to Chaingun Guy (10% each)
Pinky to Hellknight (20%)
Spectre to Revenant (20%)
Baron of Hell to Archivile (20%)
Cacodemon to Mancubus (20%) and Arachnotron (20%)
Lost Soul to Pain Elemental (10%)
Shotgun to Supershotgun (67%)
SoulSphere to MegaSphere (33%)
Totally compatible with brutal doom and Doom's wads (as far I know) so if you believed you never would fire with the Supershotgun, the mancubus and revenant guns in Doom 1, now it is posible.