Olympic Heroes games.

1) I disagree with the basic version. Mainly because 3.51 is more of a mod that replaces certain aspects of the game rather than improving them. Therefore, it would be better to have two basic versions: Whirlwind and Equilibrium (3.51). This is because the races in these versions differ in strength.

a) Duels with heroes and an army (does this require assembling both without castles?)

2) Regarding the third type of Competitive event. Perhaps it would be better without castles. A ready-made army with heroes is provided. A draw determines who attacks (by the way, is there an advantage to this?), and then the first turn of EACH participant is spent on positioning and using potions. The attack and, consequently, the battle begin on the SECOND turn.

(5?) A rating will be awarded for wins/losses. (I suggest the same scoring system as for regular games, but with separate statistics.)

3) Most likely, it would be better to award rating points for winning a stage, i.e., not for each "action." A regular online rating system might also work. Well, that's the main idea; from there, you can only "modernize and tune" the systems and the Competitive events.