Paying mercenaries up front in cash isn't an unheard of situation either. This maybe means they get the lower rungs of the mercenary world, but that's what they are going to have to deal with.
We know they have the mercs, and we know they likely have a sizable amount of money, at least at the start of the conflict.
Which is why I specifically said that they probably wouldn't attract decent outfits, mostly the poorly organized or low-quality thugs that you see in the Hinterlands. I
did think that post through, you know.
Plus as video game protagonists can always tell you, there's always cash to be made if you're willing to strip corpses. Keeping the mercs happy by giving them the lion's share of any loot they find when it gets divvied up probably would go a long way to keeping any rebel mage with a reliable bodyguard.
I also accounted for that: "thugs who'll fight for expectation of plunder".
Like Dean said, plunder is something they could get without having to deal with the mages.
Plunder is also something that brings you into conflict with regular authorities; some of it is expected in any war, but if you're expecting to sustain your fighting forces on it, you'll need to be progressively more and more rapacious, with more and more chance of everybody in the area hating you once the war is over. Once the war is over, people who fight for a living still need jobs, and if everybody hates you, that's not a good omen for your ability to secure further employment. So only desperate fighters, with little to no prospect of employment elsewhere, would resort to that kind of banditry, and that implies low quality that the Chargers aren't known for.
And plunder is also uncertain, especially in this situation. You might get a big score, you might get basically nothing. If, say, we were talking about the semi-ritualized set-piece battles of post-Roman Western Europe, where warlords' armies contained maybe seventy percent of the movable wealth of entire kingdoms so that when they clashed it was the Place to Be for getting loot - if we were talking about that, then yes, plunder would be a viable (maybe the only viable) means of paying your dudes. But we're not talking about that, we're talking about a twilight war of scattered encounters between relatively small groups of impoverished fighters all across a continent, with secular authorities doing their damnedest to limit the fighting and/or stay out of the way. There's not much wealth on display there, and it certainly doesn't suffice as a reason for
good soldiers to want to keep fighting for you.
I'm sure the Formari fit in here somewhere, they were a major source of revenue. Though I imagine that wasn't sustained since they seemed to have abandoned the Tranquil and you probably don't have time to sell potions when you're fighting a war.
Exactly. Mages in the Circles were very capable of generating lots and lots of cash, of course. But mages outside the Circles in the middle of a war, without easy access to markets or supplies, without the benefit of long-standing agreements with merchants and traders, constantly on the run, needing to use any enchanted items they might be able to make
for the war rather than for sale...those mages wouldn't be in anywhere close to the same position.