I googled Multiplayer Campaign and came accross this post, as well as rumors that the developers will or will not make multiplayer (depending on what you read).
I am fairly new to RTW, but not to the TW series. I am interested in what you are doing, and I might be willing to help out when I can. I am a software engineer, but I have never worked on games besides a little bit on Half Life and simple Java games like chess, checkers, etc.

If you are interested in some help, let me know, I'll see what time I can pull together to get some tasks done.