To be honest, I managed to incorporate my ideas into the first mission, and I'm not even sure what else I could add on top of that. Regarding the hardcore mode... I could script the Necromancer to make him more engaging in combat. However, I personally find it challenging to defeat him even with the current hero, considering his "Raise Dead" ability and the ghosts from the corpses. As for the assassins... I could add a feature that increases the army size over time (to avoid auto-battles), but I'm not sure if that's necessary. Thank you for the feedback on the second mission; I'll take it into account and make adjustments. Overall, my plan is to create a separate hard mode for the hero's difficulty after finishing all the fixes for the campaign, where I'll add many smart features.