I see some discussions about a new playthrough. Before starting the second crusade, it would be good to discuss all the rules about what is allowed and what is not. Otherwise, Medstrah will again say that you used some kind of cheat tool, that everyone here is a cheater, and the result won't be counted :D Or he'll come up with something else.

It is necessary to discuss and agree on all the rules in detail

And, in my opinion, it would be good to sort out the first saves first, and then start something else (let him review everything and calm down).