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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 difficulty... I could script the Necromancer to make him more engaging in combat. However, I personally find it challenging to defeat him even with the hero, considering his "Raise Dead" ability and the ghosts from the corpses. As for the assassins... I could add an increase in army size over time as an addition (to avoid autobattles), but I'm also 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, I plan 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.