If they are called the Sixty-four War Gods, then why are they comprised of 64 groups of four? How do the Flamengers come to this conclusion? I don't follow the logic. By extension, why would the 256 Generals again consist of groups? There is no evidence to suggest that they're not just 256 individuals (plus 64 individuals, and another four individuals).
They don't, you just multiply their numbers by 4 every time you go down the lower ranks.
I don't get the jump between Heavenly Kings and War Gods, but the monsters have to be getting weaker, right?
In that case, the majority of them should be utter garbage that can be taken out all at once.