Well done! One extremely nerdy tweak you may have missed at the end, I trimmed the (higher-quality) D3 theme so it fit the length of the credits sequence, whereas normally it gets cut off mid-BLRRRRRRRRRRblrblrBLRRRRRRRRRRR.
So, yup, Soul Cube. In the standard game, by the time you start regularly fighting Hellknights and Archviles, they're rendered pesky annoyances because the late-game weapons are so insanely powerful. Both the BFG and Soul Cube are heavily nerfed now - the BFG takes longer to charge and does less damage (but more splash IIRC, intention's to balance out the heavy-hitting nerf by making the weapon more versatile), the Soul Cube requires double the kills to activate and won't instagib anything bigger than an Imp (meaning the Cube's now used more as an emergency healing device than as an all-conquering ultracannon). The hope is that the player's now relying more on the combat techniques they've developed throughout the game to take on the nastiest demons, rather than dealing with them just as quickly as you would a Revenant.
You may also have noticed that the Imps and Maggots in the last level take a lot more punishment than usual - makes it harder to concentrate on dodging the Cyberdemon's attacks, so combined with the Soul Cube nerf, should hopefully make the final boss more exciting.
Anyway, Resurrection of Evil is modded too if you haven't had enough yet... Changes should be immediately noticeable, with the new music and footsteps based on the leaked D3 alpha.
It's not really as good as Doom 3 though in my opinion, pacing and enemy variety is weird, and I don't like the intended reliance on the Artifact's cheaty powers and the Grabber. Detracts from the shooting dynamic as far as I'm concerned.
