So should I only upgrade farms to crop rotation or comunal farming in my miscellaneous cities and upgrade it all the way in my troop production cities? Then, when my troop production city reaches full potential, just destroy the farms? Also, I like the rebellion idea. I actually thought of that once, but didn't know if it would really work. Also, once I exterminate the town, should I keep exterminating them only down to 24k or should I go lower? The town doesn't lose it's Huge City buildings if I go below 24k right? It's just that I'm training Urban Cohorts and I can only train so many of them and really don't require huge populations to do it.

If it's a Huge City and the population gets below 24,000, will the city still allow me to train new units/retrain old ones? Or will that option be disabled until the town reaches something over 24,000 (or whatever the current city needs) before I can draft civilians into the army?