A bit off-topic in a off-topic discussion *Wink Wink Creativeness*
Imaging a RTS in which if you do 2v2 its more of that somebody can work on doing what they like most (eg. farming or military) So per say you prefer to do the economics you are put towards doing that (You can do other stuff but thats your priority) whilst other players get put as military, diplomat and so forth.
Then imagine this bit... You have your own, individual character with its unique stats! :3
Sounds like a cool concept. Having multiple people controlling an army/civilization/country and fighting other countries would make for pleasant gameplay IMO.
Plus, who doesn't love leveling up/creating/controlling their own character!