So as you know the latest braking brad is his mission to get the Superior Firepower achievement by beating Doom II: hell on earth on ultra violence.
As far as i am aware, im pretty sure he hasnt said anything about it, that is what Brad thinks the achievement is for. However, I just completed it myself today and the achievement didnt pop for me. After a little look on the web i found that the achievement is actually gotten by beating both "hell on earth" AND "No rest for the living" on ultra violence.
I dont think brad has done the latter, so all his efforts could be in vain. Still its a hell of a lot of fun watching him play, though i doubt that will help his gutted feeling when he finds this out.