AI battlefield algorithm.

This is a question I've wanted to ask for a long time. In the third game, the randomness isn't entirely random. It's literally predictable, to the point that if you restart a scenario and find, say, 1000 gold in a chest near a town, then in a nearby warrior's grave, you'll find, say, Rider's Gloves, and if the chest contains 1500 gold, then the grave will contain something else. But if you restart again and the chest contains 1000, then the grave will again contain the gloves. The same applies to the hero skill tree, which is why the LMOracle tool works.
Interestingly, no matter which versions I play, where I download them from, or which computer I install them on, it works the same way in combat. If I repeat the same sequence of actions, then at exactly the same moments in the battle, morale, luck, or the same spells of Djinns or Sorcerers, etc., will drop for me/the computer. However, in discussions about offline walkthroughs, there are often comments that you can't base a walkthrough on the assumption that morale will drop, because it might not, etc. That is, I feel that the way randomness works for me is unique.
Could it be due to the HD mod or something else? Please tell me how randomness works for you in combat, because for me, 100% reproducible events occur when I repeat the steps.