Walkthroughs for custom maps.

haloneya has started playing The Last Crusade with a swordsman: www.twitch.tv/haloneya

He's a strange streamer. I've seen his streams of Metatax on HotA: facepalm:

I don't have his contact information, but he uploads videos to YouTube.

This person seems to be a skilled player, as I've seen recordings of him completing difficult maps on YouTube, in particular, "Vengeance is mine", which he completed entirely. Therefore, there's no need to make fun of him; he's not the kind of guy who completed "Wayfarer" in 70 months.
And you can contact him through YouTube.

kolotok, Something's wrong; the attached file with the map (勇者闯天关) won't open in the editor, and I can't find it among the maps in the game either.

But in my "Complete Collection" editor, it opens normally. Maybe you just didn't extract the map from the archive?
If this map is one of the "traditional" ones, I might try playing it. The rectangular landscape is a bit off-putting, but I can tolerate it if the gameplay is interesting. But I've already decided which map I'll play next. I'll finish one today and let you know...