The game is structured as a career, beginning with a training mission, then progresses through a series of ever-tougher real assignments. Each mission/assignment consists of a province and set objectives. Achieving these objectives will result in promotion and an offer of a tougher assignment, which can be turned down if the player is having too much fun to accept at that time.
The career progression introduces elements of the game step by step, thereby teaching players how to play without forcing them to play through a tutorial.
There is also an option where players ignore the career progression and simply play the full game with no promotion involved.