Need help editing population growth

[Mr.Freud]

I want to try a campaign with 40 unit armies. What lines should I be looking for to boost population growth to sustain such armies, but without breaking the balance?

[CIaagent11]

Uh, there was a DeI script with the population numbers for each unit. You basically have to auto-replace all the values with your new numbers. I think it is script->lib->manpower->units.lua, but I haven't looked at this in years.
This might contain some information. When in doubt try to google this stuff.