For some odd reason now when I try to play any of the challenges I get an error that says that the challenge has things in it that I don’t have. Yet when I try to play ones that I have played before and that I know were made from non modded material I get the same message.
This could be a corrupt or edited file at your end. Take a look here:
\gratuitous space battles\data\packages
There should be one file in there called gsb_base or two if you have tribes.
gsb_base should have this in it:
name = gsb_base
uiname = "Core GSB Game"
(you can open it using notepad).
Somehow, some people have a gsb_base that is corrupt. Changing it to that should fix it. The tribes expansion should have an entry with a similar format.
Thanks Cliffski, I’ll give that a shot.