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Hello!
I'm a solo player of the third Heroes game with a rather mediocre skill level, despite playing for about twenty years, having a vast experience and knowledge of the game's mechanics.
And here I am, actually, to present a couple of my template sets for HotA for your consideration. Although I don't play online for various reasons, I'm aware that everyone is now somehow obsessed with Jebus Cross. But I'm not a fan of this style of play, so my templates are more classic, perhaps, and more focused on exploration. In general, I've tested everything myself, and I would be glad to receive your feedback and constructive criticism, as I have a tendency to engage in such activities, and this may help me to do something more qualitatively in the future.
So, the first set of templates for the single-player game "HoG" (after downloading, rename it to "rmg" and put it in HotA_RMGTemplates in the "HoG" folder you created):

Here, I think it's clear – depending on the selected map size and the number of players, a specific template is generated.
The second set of templates is designed for so-called "one-on-one" tournaments – I have some experience playing with a friend in hot-seat mode, so this set was created specifically for this purpose (also, as with the first one, rename the file to "rmg", and then put it in HotA_RMGTemplates in the "HoG tournament" folder you created):

The situation is similar to the first set: depending on the map size you choose, a specific template will be generated.
Thank you for your attention!