Hey, this is probably my favorite Doom mod of all time and no GZDoom install is complete without it in my opinion. I do, however, have a couple of small feature requests:
1 - Similar to the reintegration of Betray and Sewers, and on the note of Sigil's inclusion, would it be possible to get E1M4b and M8b [Romero's level remakes] included in some way? I would love to be able to play a 12 level long ULTIMATE version of Episode 1, i.e. maybe have E1M4, then M4b, then play the original M8, then M8b?
2 - Would it be possible to integrate the Community midi packs for Plutonia [Jimmy], Master Levels [Peter Lawrence], and No Rest for the Living [also Peter Lawrence]? They are excellent midi packs and I think would make each of these collections of levels feel even more "complete", as basically every level would have it's own music. The master levels pack goes off of the PSN order. Links to the aforementioned projects as follows:
Plutonia midi pack: https://doomwiki.org/wiki/Plutonia_MIDI_Pack
Nerve.wad midi pack: https://www.doomworld.com/forum/topic/119301
Master levels midi pack: https://www.doomworld.com/forum/topic/118804-master-levels-for-doom-ii-25th-anni...
Obviously I know just randomly asking for extra features is something tons of people do, but I think just these two things would make your mod the most complete package of all official [and semi-official] doom content possible, giving almost every level unique music.
Feature begging aside, this really is an incredible project and it has enriched my doom playing experience to an incredible degree over the years. Thank you so much for your efforts.
[Update: I decided to donate, but please do not think of it as some kind of informal commission expectation or something of the sort, there's no obligation to carry out these feature requests, it was just for what you've already done for both myself and the Doom community with your awesome tool. Again, thanks, and peace be with you.]