I read the thread. I played it, but didn't complete it, as far as I understand. That battle against 90 upgraded dwarves, screenshots of which are attached at the beginning, can be won without losses; you just need a stronger army to break through. Before that, I had something like 10 champions, 27 crossbowmen, and 40 archers on level 123.
This will truly be like a bolt from the blue.