Classic levels are actually really poor imo.
The mod "Classic Doom 3" worked a lot better.
It's even more poor when there is literally no reward for doing so, nor any end screen showing that I got all the secrets etc.
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Anyway to follow up on my last post, I haven't been able to play this game much (maybe a level every 2 days), but it's really good on Nightmare. UV was a bit lacking but I understand that depends on the player. I'm still iffy on Glory Kills, but it is what it is.
Wolf: TNO > DooM in terms of raw gunplay, but DooM has its moments.
DooM on Nightmare kinda feels like playing Ninja Gaiden -- once you know what you're doing, the plan is to seldom get hit.
I shouldn't score this game but if I had to based on 3 Missions... it's a 7, where Wolf was pushing 10 by this point. I'm slowly getting into it but it isn't blowing my mind as much as it seems to with others. I cannot stress enough for people to try Wolf if you like this.