I still think it's not useless. You should try starting a campaign mission from the beginning, leaving more neutral units, reaching the final stage of the mission, and pressing the "E" key, but don't overdo it, so you don't end up with 999,999 units in the enemy army, like I did. Logically, I think it should be one of the final missions.
Цикл "Закадычные враги": "Особенное гостеприимство, "Супероружие", "Меж молотом и наковальней"
"Падение Шантири"
Кампания для "Кодекса Войны"
"Выбор Сагиттеля"