Hi Volcano,
I humbly offer a suggestion...
As I'm siure you are aware the Romans would March on campaign every spring, conquering and looting as they expanded their empire. The roman economy was reliant on expansion and looting to pay their solders. In Rome2 we have to avoid looting too much and avoid capturing enemy solders because our slave population grows too quickly and we get revolts. Revolts are historical but so is looting and taking slaves. I propose a mod that links slave population to gladiators games and inverts the slave market effect. The bigger the gladiator building the faster slave pop decreases as they are killed in the games for the peoples entertainment. Also the slave market could be used to decrease slave population rather than "reduce slave population decline".
I think it would be an intersting game mechanic to balance taking slaves from captives/looting with using them for gladiators/market.
Just an idea. You may not be interested or would prefer to play the game for a bit instead of tinkering with moding all the time.
Anyway let me know if you wanna play a multiplayer campaign anytime. I've been playing Caeser in Gail multiplayer against my friend with your mods and its just great.
Thanks again