Yes!!!
I did it on Friday evening. It took about 4 hours!
The result, as I think, is very good. I ask the organizers to check my save. If any questions arise, I can answer them because I still remember how I completed it. :)
I feel like I completely failed, both in this tournament and in the first Heroes game! Well, that's okay, because I play just for fun.
P.S. I think I should send my save, because I won't go through it again, and there's no point in deceiving myself. :)
Respect to Zingel!
Sincerely, VDV_forever