I appreciate your feedback! The amount of work was not that big. I took zoomed-in screenshots of the entire map and drew a theoretical route of where to go, what items to take and when to kill which monsters. The realisation of the route satisfied my predictions. There are three reasons why I abandoned it. 1. The replay file doesn't store the flag which fixes the behaviour of bullets when the player moves very far away from its origin position ("Fix clipping problems on large maps"). This highly affects the speedrunning of central and eastern lands of the map because it would require a lot of bruteforcing due to unpredictable impact of bullet weapons and berserk. 2. I lost interest in TASing Doom by that point. 3. The fan-base of those who like to watch Doom TASes is quite humble. I was reflexing on the amount of feedback I would get if I surpassed all this and TASed the whole map, and I concluded that it would just not worth it. So I just stopped at my current progress. At first, I planned to delete it, but then I thought about our successors and decided to publish it as is. Maybe it will influence somebody to continue my work or at least join Doom TASing community.

I thought they just moved it to map10, is it still there?

​@@_thresh_ I'm not sure.

@@removed.1 i just checked the repository and it hasn't changed since it got moved from map04 to map10

The footage with Casey wearing a mask was borrowed from a walkthrough I found on the net. Regarding Slashuur, I have no idea how to get them. I didn't find any excessive lists of cheat codes to try different outfits.

The statement "Freedoom is Doom, but free" didn't come on its own in the first place. Overdriven guitar became very popular, thanks to Doom. That E1M1 Hangar music strongly impacted fan-made soundtrack throughout the time. The tracks you've enlisted are all composed by the same person: Adam Kalmbach (jute). That's why such a pattern is followed. And I assume, the objective was "it should sound like Doom". One patient person, Bluesphere, has examined the soundtrack in all versions. doomwiki.org/wiki/User:Blursphere

You mean, the history of enemy sprites? Well, it makes sense to download all known Freedoom versions, extract sprites from each WAD and compare them. In case of possible plagiarism in early versions, you can use Google search for pictures to find similar ones and look at their descriptions, hoping that one will have the information about the origin that would be not Freedoom, but something else. There is also an official Discord channel where people may, at least, consult on this question, or even collect info, if it's easy to find it.

I wouldn't have thought of it if I hadn't read this fact several years ago.

It's DSDA-Doom: drive.google.com/drive/folders/1KMU1dY0HZrY5h2EyPzxxXuyH8DunAJV_ Level statistics can be enabled if you go to Options -> General -> Use extended HUD, and select "Yes". I think, it should be on by default.

@@Dimon12321 i just checked and found out my version was outdated, so that's probably why

@@_thresh_ Which version it is? The version used in the video is 0.19.7, which came out like 2 years ago. If you press F5, your HUD will change. On old versions some HUD variations have level statistics.

@@Dimon12321 it was 0.25.6, so i don't know why it wasn't showing the kill percentage. however it was showing the rest of the stats.

Yes, it's a secret map. To play it, you need to perform a jump from the specific platform (42:56) in the room with multiple teleports and enter a special teleport nearby. Just repeat what I do in the video. Normal exit is shown on 42:13. Touch the devil wall and it takes you to E5M7.

Yeah, Aglar discovered that zipping technic 8 years ago. Thank you very much for assisting me all the way through!