"Rich" does not even begin to cover it. I ended the war after killing 1.6 Million men, the vast majority of them (90%+) mercs. Even with admin ideas, those mercs must have cost an absolute fortune since he had no income of any kind for 15 years, and I ended the war by taking the max amount in warscore which came to 10k ducats. He STILL did not go bankrupt after all that. The ledger was probably bugged but it seemed to imply he had 250k ducats for the entire war. There is no way he can ever run out of money if that is true.
Paradox may have nerfed mercs abit with professionlism but it's still way out of control to just spam them over and over.
My biggest gripe after the merc madness is that 0 Mandate is mostly pointless. Yes it helps, but even with 4 Military ideas (Quantiity, Offensive, Defensive and Quality), max absolutism, max professionalism and awesome 3 star leaders, even with all that, if I attack 45 of his guys with 25 of mine, he's probably winning that fight. While taking 50% more damage from shock. I mean, what? Also trololol 25% less goods produced from low Mandate? Why is that even a thing? It means nothing to him.
At 0 mandate and 20 WE, Ming should explode like Barad-dûr and his Orcs should flee for his lives. That does not happen, he can keep fighting for decades instead.