I recall reading that someone made a campaign once but maybe i was just dreaming. I see no reason why it wouldn't work considering the Tutorial has objectives and what not. I won't be the one to make it but still it is a good idea and may very well be possible.

This isn't possible using the normal campain like system. It simply doesn't exist in sins.

However, I belive it is possible by using various ingenious abilities, that a campain can be constructed.

When you start a map the number of units factories etc are set, it should just be a case of adding subtracting the template for that map, if that's possible.

Will respond to your pm raven asap, off to bed now.

EDIT

I already have some music that could be used because I produce music from home.

And those that can code could do it themselves but haven't for some reason, too busy on their current mods I guess.  I have contacted a few, no dice so far.

I believe there was an old one called DOME but it was for very very old sins but it did sorta have the campaign modes....