Heyyo,
Oh, it's possible in D3. Play LMS, it's literally old skool Doom gaming n D3. The crazy music tracks, the massive amounts of enemy's, the basic level design.
Yeah, the model detail was good.. but I think they should've cut the poly's down more n' increase the fight sizes. Not all the model's are that high-poly either though.. The top of the imp's heads are like, a pyramid, so they did try to cut some corners...
They say Quake4 is built on the Doom3 engine.. if so this could be bad news for us unless they optimized the engine bigtime.. cause it feels lacking in gaming smoothness compared to Half Life 2, and HL2 isin't cheap on its visuals either, and I think we can all agree on that.