They only took it down in the messy asf mod catalogue from the latest doom re-release; pretty sure it's still playable via any other previously available method. That catalogue is a complete disaster anyway, lots of people's work being uploaded by randos and uncredited, lots of the catalogue entries completely not working, many duplicates, but Bethesda only lifts a finger when Margaret Thatcher's name is on the line lmfao

Maybe they were afraid it would actually bring Thatcher back from the dead irl