Zone 300 with Russian Overkill+Brutal Doom Monsters: MAP20
Zone 300:https://www.doomworld.com/idgames/levels/doom2/megawads/zone300 Russian Overkill: https://forum.zdoom.org/viewtopic.php?t=29915 Brutal Doom Monsters: https://www.moddb.com/mods/brutal-doom/addons/brutal-monsters
Zone 300:https://www.doomworld.com/idgames/levels/doom2/megawads/zone300 Russian Overkill: https://forum.zdoom.org/viewtopic.php?t=29915 Brutal Doom Monsters: https://www.moddb.com/mods/brutal-doom/addons/brutal-monsters