freedoom v0.5 in doom 2 but it's brutal doom (link In description)
freedoom 0.5: https://www.moddb.com/addons/start/134943?referer=https%3A%2F%2Fwww.google.com%2F brutal freedoom v1.2: https://www.moddb.com/addons/start/214143?referer=https%3A%2F%2Fwww.google.com%2F doom 2: https://archive.org/download/2020_03_22_DOOM/DOOM%20WADs/Doom%20II%20-%20Hell%20on%20Earth%20%28v1.7%29.zip
freedoom 0.5: https://www.moddb.com/addons/start/134943?referer=https%3A%2F%2Fwww.google.com%2F brutal freedoom v1.2: https://www.moddb.com/addons/start/214143?referer=https%3A%2F%2Fwww.google.com%2F doom 2: https://archive.org/download/2020_03_22_DOOM/DOOM%20WADs/Doom%20II%20-%20Hell%20on%20Earth%20%28v1.7%29.zip