I also remember an early mission, Veruna vs Creon i think. What broke me on that one was the darn laser guns, the range on those is SICK. But once I memorized where those were they were easy to avoid. I don't know of any unit naming, but you could always name the first guy to attain gold (veterancy) and try to keep him alive.
Creon's monarch wayyyyy to weak for any engagement, the gears in your head start turning into how you can survive till you get the academy up with beast riders 🦄
They were powerful indeed, but I never really felt they were overly powerful, most of the difficulty (I think) can be attributed to the enemy having a finished base compared to you and having more sacred sites (mana) than you, missions where you play as creon were no easier than other missions.