I have a few suggestions which i think can improve game play much better.
1. Automated workers.
They cut down forests and jungles when i didn't want them too, since the only source of rubber comes from forests and jungles. Thus i want to keep the trees and not cut them down for the chance of getting the much needed resource.
I would like the option to "customize" what the worker can do. Like allow them to cut down jungles or forests or what not. Build roads or not ect...
Also in cities
Allow us to "turn off" a unit as in the city DOES NOT build the unit. I don't want warriors being built when riflemen are in existant. That has happened alot, or priviteers being built when i have battleships are the ship of the era.
Just a few suggestions