But the upkeep of each unit IS different in CoH2 as well. Can you detail how the old upkeep system would help discourage the kind of spam you describe?
This looks to me like the same old call-in efficiency problem, and not necessarily a population problem.
I think he is talking about the amount of territories held influencing your popcap. In CoH2 it is set to 100. In CoH, it was dependant on how much territory the player held. Imho, CoH had the better system. No "pulling out an (insert super heavy tank call in here) out of your ass" after being pushed back all game.
If we had a modified "old" popcap system, I think teching would be taken in to consideration again instead of relying on call ins. No territory -> low popcap.