True multiplayer campaign map

[Kitt]

Atm im playing a hotseat campaign with the mrs, we have two copies of most games except the totalwar series because there has never been a real lan campaign where we could play together and fight on the battle map together.

Id be happy if they could set up at least a TWO player lan campaign :)
The only thing missing from the current hotseat game ,
Simultaneous turns "like other turn based games" , battles involving two human players.
I never really understood why i could set up pre battles and play people online yet not have a lan campaign.
i mean from where the game is now, would it really be that hard to code?
i agree a 16player campaign would just be insane but im sure there are pple out there who could manage "a friend who plays", "a other half that plays" for a two player grandcampaign.