Unless you are playing as a roman faction, there is no larger goal than 'take 50 settlements and crush Rome. In the meantime fight lots of repetitive battles.' Even the Senate missions are kinda unimaginative, after a while. My opinion is that players need to have some bigger goals, or at the very least have working AI alliances. For example, if my empire expands to something like 30 states, several AI factions will drop their old hatreds, ally and gang up on me. Abit like Risk, where being the biggest faction was akin to painting a big bull's-eye on thy butt.
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