Hey, I found a weird glitch or legacy command or something that broke Campaign mode. I completed my third mission and wanted to give the area a custom name, but when I pressed Shift+U, the screen faded out and acted like I just completed what I guess is the last level, with a score of zero for everything.
After naming that region, the map was all unlocked with the other areas called "unamed" [sic]
I guess it's not the worst thing that could have happened, but it's kinda annoying that I'll have to start the campaign from scratch if I want to finish it legitimately.
Also, how long till Sandbox mode is available?