The “Battle Cry of Freedom” scenario.

I would call this scenario: "learn to play as the Orcs." The map is scripted. When you take the second Academy Castle, a passage to the sea opens, and a Red Knight with an army 1.5 times larger than yours (on average) comes to your aid. I played it like this: I freed Tilshek (he's imprisoned at level 22) as quickly as possible and leveled him up. I leveled him up, of course, with a ballista with fire arrows, which destroyed everything (for example, about 40 of Isabel's Knights in 4 shots in the final battle). He also had leadership, logistics, and defense, I think. I took the Academy Castles with almost no losses. Before taking the second Castle, I gave Tilshek the entire army (including 300+ Warmongers). Final battle: Lorenzo has 50+ Seraphs, 100+ Knights, 900+ Red Archers (he trained them), and the rest accordingly. He has leadership, attack, defense, and luck leveled up, but no magic (!). I have 20+ free Cyclops, 50 Wyverns, 100+ Wolf Riders, 150 Shamans, 600 Centaurs, and 1000+ Goblins. The battle went something like this: the enemy destroyed half of my army on the first turn (Seraphs one-shot Centaurs, Knights one-shot Wyverns, etc.). I killed hordes of enemies with a ballista (which the computer didn't bother to destroy, even though one shot from the archers would have been enough). I quickly ended up with only Cyclops and Warmongers left, but both had level 2 Blood Rage with a huge amount of Fury (only the advanced racial skill was used). The Cyclops destroyed all the archers + some minor units in the rear, and the Warmongers killed everyone with retaliatory attacks with infinite resistance). I had 200+ Warmongers left. There were no more problems after that. I played on Hero difficulty. A typical mistake: trying to defend in the Castle. Another way to play: buy Astral Gates, jump to the Knight, and kill his main hero before taking the second Academy Castle (but don't take the Red Castle, otherwise the scenario becomes impossible).