On the next few pages of this guide you will find some informations about the Great Campaign. You can chose one of the four game mode.
The first one is called Short Campaign and you will have to conquer some regions. Note that some particular areas could be necessary to win.
The second one is called Long Campaign. Rules are similar but you have to conquer more regions.
The third one is World Domination. In this mode you will have to conquer couple of regions and achieve the highest level of prestige.
And the last one - Prestige Victory. It is simple - you have to achieve the highest prestige level.
In this chapter I will write some advices about the Long Campaign. Why this one? The answer is simple. Short Campaign is the same but you don't have to conquer so many lands, so if you want to chose this mode just read the guide and you will be prepared to the both of them. The other thing is when you want to play World Domination or Prestige Victory. In these modes you must simply conquer every province that you can and develop your army. Read the guide and learn how to defeat your opponent very easily and quickly.
The guide was created for novice players. In lower difficulty levels you can find that the enemy is less aggressive or has fewer troops. When writing this handbook I was playing on the level called "difficult" (for both battles and campaign map).