I played two games of the World of Civilization Mod starting in the Neolithic Era.
In my first game I started with a Hunter and began researching Agriculture to enable city founding. I gained a Warrior from a goody hut and lost my Hunter before finishing researching Agriculture. I don't know if this is why I couldn't found any cities or if it is because I didn't start with a Camp unit.
In my second game, I started with a Hunter and a Camp unit. The camp looks like a caravan until you fortify it and then it looks like two tents. The Camp is supposed to be able to produce units. I didn't receive any until I finished researching Agriculture, then I got a Settler, another Camp, and a Hawk (which I seem to have lost).