Morale and luck.

It has been a long time since the article about sieges was published; thank you to AlexSpl and Qwerty for such an interesting article. In some articles, it was mentioned that in Heroes 2 (and only in it), battles became fully predictable. What specifically influences the outcome of a battle in a given turn for a particular unit, such as inspiration, disappointment, luck, or bad luck? P.S.: Since the latest articles were published on handbookhmm.ru, could you also move the first articles, which were still written on heroesworld.ru, there, perhaps as an analytical guide to castles and factions?