Walkthrough for the "Tribes of the East" expansion.

For three nights, I stormed the third Inferno castle with orcs in the final mission.
And finally, after another reload... the camera moved to the Dungeon... the heroes rushed towards the castle...
I was already on edge and randomly pressed a combination of keys... and wow, the heroes stopped! And Gotay has 900 Cyclops... Is this a bug or the developers' intention?
I thought that Railag would appear at the end of the game... I'll be waiting for the continuation of the game's plot...

This is not a bug; when the hero icons appear, you need to click on them and indicate a path for them (say, a few steps ahead), then they will stop, and you can perform an exchange!

Added 5 minutes later
I captured Claw, using only the troops of Zehir's castle! I used the Subjugation spell (if you don't have it, try looking in your inventory - there should be several volumes of magic books, you need to equip the volume with dark magic, and this spell will appear), then I used Phantom Creation, Resurrection, Divine Retribution, etc.!