For decades now I have been gamemastering rpgs, but the current state auf my FAGE campaign presented I problem I never faced before.
I tried to demonstrate to the players what danger their characters were marching into by giving hints that a small army of opponents waited in that direction.
They didn't care. They marched on.
I gave them more hints to the sheer number of opponents (sevel hundreds). They still didn't care, quite secure in their perceived knowledge that FAGE characters are unbeatable by opponents of literally any number.
So, the confrontation ensued. I didn't know how to handle it. The opposing army suggested the Mass Battle System, the group of characters suggested a normal combat encounter.
So I tried a normal combat encounter. And the characters won. Four of them, against 300 foes. Easily. (Naturally, I didn't roll for every opponent; I made a representative roll for each ten of them. All - ALL - of these rolls failed against min-maxed FAGE 9th level characters.)
There were of course severe mistakes made in gamemastering, but never before had I experienced players not being interested in any PLAUSIBLE way of things, so accustomed they have become to the basic invincibility of 9th level FAGE characters.
I know. I shouldn't have used rules (any rules) in that situation.
On the other hand, if the rules represented real danger to adventurers a little bit better, that would have helped the players to simply flee or evade an army. But they insisted on fighting. I could have said there were 3.000 fighters, and they still would have insisted to fight them.
By the way: there was also a spell-using encounter against the foes' three mages. This was done by normal rules and was an easy win for the characters because it is so easy to resist even the most experienced mage: the spellpower system. With "outcome" as in Blue Rose, the power and experience of the opposing mages would have been a real thing, but not with spellpower.