Do you know Battle Time?
It is a special mod do for Egbert that let you play your singleplayer campaign and host a multiplayer game whenever you have a battle. After the battle, the results can be used to impact your singleplayer campaign.
Imagine being able to play with your friends your Brytenwalda battles.
http://forums.taleworlds.com/index.php/topic,150827.0.html
Well, stop imagining. The version 1.34 of Brytenwalda include Time Battle.
It's time to test your shield wall against your friends!!!