Info and Download: https://www.moddb.com/games/return-to-castle-wolfenstein/addons/rtcw-doom-e1m1
Alternative link: https://gamebanana.com/mods/644317
Info and Download: https://www.moddb.com/games/return-to-castle-wolfenstein/addons/rtcw-doom-e1m1
Alternative link: https://gamebanana.com/mods/644317