Friends, Romans, Countrymen; lend me your BFGs.
RPG Vault has posted "Part 2" of their interview series with Mythic Entertainment's Matt Firor and Colin Hicks. Our fly on the wall reports that they may have said this:
Colin Hicks: Missions are one of the most important aspects of Imperator. It is, after all, what the player is doing most of the time he's playing the game. Missions are the avenue through which the player experiences the world and understands the story of Imperator as well as his place in it.
Overall, the content in Imperator can be summarized in three categories, Open Zones, Engagements and Life Events.
Go! Read! Your Caesar commands it.