Campaign mode: pick a faction from thos avalible, build up your country's economy and military, make alliances with other factions and fight battles against mortal enemies. Think of the Campaign map like a big game of Risk, just with trading and building...and training armies. the goal is to dominate the map, having your faction defeat all others.

On the map you can see the status of amies and ur own lands (provences). once u have built ur troops up you can move them to attack. then a battle will follow.

battles: battles are fought in a 3d environment with 2d units. your goal here is to drive the enemy force from the field, select your troops by clicking on them and then make them attack ur opposing forces but clicking on an enemy troop. things must be understood such as, Spear beats calvary, calvary beats most sword (infantry) Infantry can beat spear, and Calv can beat arrows. ill let u find out more.

Custom battle: pick ur troops, pick a map, pick ur enemy and fight. much like skirmish mode in other games.

Multiplayer: much like custom battle only here you fight with people not the AI

AI: at times it appears that the Ai has no clue what its doing, then other times it will turn around and kick the crap outta you. the only predictable behavior for it is unpredictable.

difficulty modes: Easy, Medium, Hard, Expert...depeing on the difficulty of the game either you or the computor will have a slight edge on the field of battle. i think on med the player has a 10% advantage while on hard the comp has that 10%...not sure on that

anyway i hope that helps... sombody can pick up from where i left off if i missed anything (im sure i did)