New era.

I have rebalanced the Campaign. I simplified the Walkthrough on higher difficulty levels. The new version is available for download via the links in the Campaign Links (new) section in the first post of the topic.. The old, more difficult version is also still available for download via the links in the Campaign Links (old) section.

Description of changes in the new version:

Third map:

1) Reduced stats, changed builds, artifacts, and spells for all demons.
2) The growth of demon armies on the surface begins with a delay, and the army growth rate has been reduced.
3) Fixed a possible bug in the Ir-Kha-Bar script.
4) Ir-Kha-Bar now belongs to the Orange player (this was done so that he does not transfer the army to Ir-Ro-Bar).
5) Fixed a bug with daylight on the map.
6) The guard of some objects on the surface and in the Dungeon has been weakened.

Fourth map:

1) The map design has been significantly changed.
2) Urgash has been weakened for scenarios where he is an opponent.

In the old version, nothing has changed.

Added 5 minutes ago
The old and new versions are incompatible with each other and should not be in the UserCampaighns folder at the same time.

Upd. Not relevant