Heroes 5.5 - Tribes of the East - Stronghold Campaign Mission 2 - Impossible Difficulty

In the 2nd mission of this orc campaign i play as another orc hero named Kujin, this hero was the reason i had to restart my whole run of this playthrough because she will be one of the heroes in the final mission for a really hard miniboss fight. First time i didnt build her properly and had no chance of winning the fight in the final mission with her so i had to restart everything from this point onwards. I built her a bit better, but still, it didnt turned out exactly as i planned, for example i tried to go for summoning magic in hopes i get somehow puppet master and didnt unfortunately. About this mission, i got to talk to 4 different orc leaders and convince them to join me, 1st is easy right at the start, 2nd is guarded by a strong garrison next to first area that i cant simply fight right of the bat and need to build a decent army in the meantime, 3rd and 4th are on separate islands.