There is one game that has made this kind of MP very good. That is Warbirds. U have a big map there are 2 sides fighting against each other. One map can take weeks to finish, depends of how long it takes the other team to conquer.
If they tweaked it a bit they could have made this happend. A.I controlled defenses at town etc.
But if it is not possible I will not press this matter anymore
How about making a sandbox multiplayer game? You have the big map, can free roam, meet other online players or A.I, you can form a gang together or kill them?
Is this possible?
What I didnt like about M&B Warband is that you cant do this in the multiplayer. Just fighting in mount and blade gets tedious, its the whole package that makes it so good.