Well none of which reaches even closely the standards of any of the 3 official game campaigns had. Each mod that introduced some sort of new mission maps presented them with some minor scripts in it but no real story line behind it or actual flow besides messed up fights. Not sure if the actual Hw1,Hw2 standards are even possible to recreate and when then just by replacing the original campaigns which is also not the most practical solution I suppose. Although I would play all of them.
As for some form of sp map editor. Prior to the release one of the devs answered that question in person by saying they got no intentions of releasing any sort of map editor when it comes to sp mapping. Not sure if that changed by now but I doubt it. If they don’t code in an entire new game routine, so that the game can read custom SP maps and campaigns I doubt that we will ever get one in the first place.