Two sisters. Auto-translated

13ga
Come on, he cleared it with that hero, show us the video!

Added 41 seconds later
The AI plays normally. I need a new computer.

13ga
He completed it on the "hero" difficulty; show us the video!

Let's clarify a few things. Regarding etiquette: if you want to know something, show some respect. Your own lack of skill is not a reason to assume that something is fundamentally impossible. From now on, those who post nonsense will be ignored. As an initial exception: a video of a complete collection of replays of battles from the map? For me, playing on "hero" difficulty is not some kind of achievement, but simply a game, with all the associated features.

Guys, let's not get personal over something as trivial as difficulty levels. For me, for example, playing on Hero difficulty is still not enjoyable, which is why I prefer Veteran.

Thank you to the author for the map; I personally enjoyed it! There are some minor bugs, but it's not a big deal.

What bugs? Could you provide more details?
Thank you for your feedback!

As an initial exception: a video of a complete collection of replays from a map?

I'm taking the chance)
13ga throughout the game, you are the master.

I played this map with the "portal to town" enabled (difficulty level is the same). Overall, the game became significantly more challenging. With the "portal" enabled, the AI behaves more intelligently. It tries its best to combine its forces, creating a powerful hero: a well-leveled one with the largest possible army at that point in time. The remaining heroes of that faction remain with small armies. In the towns that the player captures, almost no troops are allocated for defense; it seems the "main" dwarf takes them. In this case, "Yellow" becomes the most dangerous. There is a certain time limit before which you need to defeat Rolf or Hangwul (this is not related to the described bug). Otherwise, they merge their armies into one (one approaches the other and transfers troops) – it is unlikely you will be able to defeat it. The AI accurately chooses the player's most vulnerable point – the knight's capital and the secondary hero (by this point, they won't have time to escape). The AI sends its strongest hero to this target and also organizes a good "combat guard" – the player's hero is cut off by other dwarves, and in the field, the advantage is on their side. Perhaps all of the above can also be attributed to a map without the "portal," but the spell acts as a kind of process accelerator. In both maps, my main hero is Natalia, and my secondary hero is Mariella. Compared to the map without the portal, the main hero gained one additional level by the end (29), and the secondary hero gained two (30), becoming the main hero.
As a result, I was able to reach Onghair with the main hero on the map with and without the "portal" in the same number of days (1 day, 2 nights, 3 months, although with different heroes), which is interesting in itself, but also allows for some calculations. How much stronger the AI looks can be seen in one battle at the end of the map: main hero – Tolgar.
Tolgar's army.
Creatures level: 7 6 5 4 3 2 1
With "portal": 47 60 99 199 185 358 412.
Without: 39 55 90 195 155 303 79.
% increase: 20.5 9.1 10.0 2.1 19.3 18.2 421

That is, the average (%) increase in the number of creatures (without taking into account level 1 creatures) is 18.1.
These are just numbers. For a complete picture, I am posting videos of the battles (Natalia_Tolgar.sav - map without "portal," Mari_Tolgar.sav - with "portal").
In conclusion: all the benefits from the appearance of the "portal to town" on this map go to the AI; the player, at best, remains where they are.
P.S. I specifically brought Mariella to Tolgar for those who doubt her usefulness.

I completed the map without any problems; there were only two serious battles, against Rolf and Karl. I really liked the map! Thank you to the author.

Thank you for your kind feedback!

A very interesting map. I played it 4 times (both the old and new versions) with the same hero. In all cases, I randomly chose Victor, the machine gunner, upgraded the machines to the tent level, defense to BDP, Darkness and Light with artifacts, and Sorcery. The girls were used as support and for training. In my opinion, rapid development is important. In the old version, I finished by the end of week 16 (thanks to the portal), and in the new version, only by the end of week 19. Respect to the author.

Yes, that option is also possible! Thank you for the positive feedback!

Played again, exclusively with Masha and Natasha, and was pleasantly surprised. Masha's excellent exploration skills allowed for relatively rapid development. Perhaps I was also lucky with the artifacts (found a bow and bought a quiver). By the end of the 2nd week, I managed to take Utopia, break through the outpost, and capture the mine. At the beginning of the 3rd week, I captured the lumber mill, castle, and treasury, which allowed me to build Knights, and then Paladins. On the 4th week, I defeated the Necropolis with the help of Paladins, who neutralized its vile spells, and, of course, received a significant reinforcement. Thanks to the mentor, I improved Masha's biography: logistics to genius, defense to brilliant defense power, darkness with Fallen and Mind, light with Wrath and Twilight, and magic. After that, it was just a matter of technique. In general, I finished on level 31 by the end of the 12th week. Thanks again to the author for the interesting map.

Thank you!

I struggled a bit while playing through the map with that hero. Everything works perfectly. Great map.

Thank you for the positive feedback!