Probably, but one thing annoys me. I can't find the colonists anywhere inside the editor, no matter how much I search... I only want to find it because I had an idea.
Your problem is most likely that you haven't imported the correct mods to get any of the campaign units. To do it, with your map open, go File > Dependences and add the Liberty (Campaign) standard. You can also do this in the create new map window.
Interesting. What happens if you save your map, reopen it and then try adding the new mods? Or maybe you need to update the mods you currently have attached? I'll play around with it and see if I can get it to work.
I just opened up one of my old beta maps and added the Liberty (Campaign) dependency. After which I have all of the campaign units including the Colonists.
Well, I just imported everything to a new map and that worked just fine, so blah. Issue solved as far as I'm concerned. I still don't know why it wouldn't add it, even though you could.
And yes, it said "Loading base data" which means the mpq file for it, I assume.
Ghan has said he has fixed this. Monovertex please confirm this fix. This was only a problem with people that had signatures in the upper levels like not the special members but the respected members.