Walkthroughs for custom maps.

There is a certain "Lady Ksenia Sobchak" (although her nickname is written in English), who supposedly completed the game in 24 or 25 days...

...and there is also a save file attached to the post for those who doubt it.
I once took a tournament map that I liked, completed it in about 60 days, read about fast completion algorithms (7-8 days, all different) - and completed it in my own way, in 10 days, and then waited another 7 days for the last AI hero, which I couldn't reach, to die. After that, I stopped trying to optimize for fast completion. There are too many interesting maps that I would like to play, instead of optimizing just one.