9.0
There are only two flaws here. The minor one is that, because of the high difficulty of the added fourth episode, this is not for casual "Doomers" who just want to fill a couple of demons with holes. The "major" one? Besides this, otherwise great, chapter, there's nothing new here. Having said that, though, this is, without a single doubt, the "Ultimate" Doom, since it's the definitive edition of the golden classic.
