Prepare to see the most disturbing, sadistic and morbid manifestation of violence that you ever seen in your life. This is the definitive gameplay enhancement mod for the GZDoom and Zandronum engines. Warning: After you see it, it cannot be unseen!
When you first see this mod for the first time, you are like "Oh gee, another f--king gore mod. HOW GREAT." But then out of curiosity you decide to watch the trailer for it, and you realize even with the gore only being there, it is more detailed and looks like the creator spend time actually doing it rather than copy-pasting the same blood sprites everywhere or something. Then you realize it is so much more than a simple gore mod.
Brutal Doom goes an entire step further by adding in brand new tweaks, features, and threats that makes you feel like you could actually die at any minute, rather than speed-run shooting everything that moves, which don't get me wrong, if a hell of a lot fun, but the game could use some more strategy that'll make you plan on what to do next. The biggest feature is that there is now an auto assault rifle that replaces the pistol, and is thankfully much more powerful and more useful. There is also great features like secondary-fire, reloading, iron sights, and bullet ricochet if you stand too close, and even small little details like discarded clips and used shells and minigun bullets that are everywhere on the floors that you just appreciate so much. You can even have friendly marines that will be able to help you out in battles.
I haven't played many mods in the past, but if I we're to make a top 10, I will GUARANTEE this will make it from #1-3. Brutal Doom not only makes the game more hellish but completely badass but also makes the game much more hard in later levels, especially on Ultra-Violence. But yes, its Hotline Miami hard where you get mad, but not enough to ragequit. It also makes it so that you can't rely on the shotgun pretty much the entire game. You have to have the right gun at the right place or you will die. And that's the thing, you feel like you could face death at any time. Hell is out to get you and kill you violently in Brutal Doom. You are sucked into the depths of hell, and does it F--CKING FEEL LIKE IT.