Coming back to this point:
Because I'm not sure people fully understand how upkeep works mathematically.
While the upkeep price per pop is a fixed linear ratio, the actually achievable pop functions asymptotically.
Assuming upkeep is 1.6 per pop:
At 0 pop you have about 300 manpower/min income.
At 100 pop you have 140 manpower/min income.
At 178 pop you have a 0 manpower/min income.
Unless your opponent saved 1,000s of manpower before starting to build this massive sim city, it would take until the heat death of the universe for them to ever build more than one or two emplacements more than they already can.
I think some of you are under the impression that removing pop-caps would result in infinitely large armies, but it doesn't thanks to the asymtote nature of upkeep.
At some point upkeep on units actually becomes a massive liability depending on how aggressive the fighting is.
What good is keeping 20 ober squads if it takes literal days to reinforce them after a fight?
It's not because I had to make the upkeep mechanic in my CoH clone. I believe it is
MPINCOME = STARTINGMPINCOME - 1.5 * POP
And a a MAX(MPINCOME, 0) to prevent negatives. STARTINGMPINCOME is 300.
So if you had 100 pop you would get +150MP or 200 pop would result in 0
But anyways, there's an implicit popcap due to upkeep (~200). You are posting as if you want infinite size armies. You're going to have to change upkeep and remove popcap if you want that.
If all you want to do is remove popcap, you'll still have an average max army size due to upkeep that just happens to be larger than what we have currently. Idt that's what you want. Otherwise, ask for a larger popcap.
You want a snowball effect sort of thing, that's going to break the whole game