Walkthroughs for custom maps.

I played the first few days on the map "The Last Crusade," and it's a very impressive start. The map is, by the way, in Russian (with parallel translation of texts into English). With proper promotion, it could easily compete in popularity with "First Blood" or "Paragon," but unfortunately, that's not the case. Overly complex maps tend to deter players.

Good afternoon. The map is very interesting, but how did you manage to defeat the main 3 opponents? On day 2, the AI uses a script to get a full castle upgrade and 40 improved tier 7 units, resulting in 38 tier 7 units + 10 Azure Dragons on day 3. Usually, on day 1/3/7, the AI comes to attack you, and sometimes not just one, making it impossible to win.
I tried playing even on the easiest difficulty, but it doesn't change anything, and the AI always gets 38+10 on day 3.
Do you have any ideas on how to beat it?