One of the main problems i see in the multiplayer campaign issue is when the time comes to battles.
There are two main problems, given a direct conflict between the players:
- At most,only one player gets to fight his owem battles, this makes it unfair for the other player, or for both, asuming they let the AI fight their battles
- A possible solution could be fighting custom MP battles to decide the fate, but even then, the results are difficult to replicate in the campaign, and it could only be used for smaller armies
So yeah, it is possible, but it still lacks...
Wouldn't it be great if there actually were MP campaigns?
Bookmarks