Yes that would be a solution - Then there would also be a bigger selection of sides to play.
But as you say, hard work, and alot of people are still playing the original, so we may have to wait a bit.
I've heard that another dynamic campaign generator is being made, for red tide, so that should atleast keep us busy while we wait.
We will probably see Heroes Badge before a MP/Co-op mod for Red Tide...But i'd happily be proven wrong.