I've been wanting to go back through each mission and unlock all ships and weapons from the pre-mission loadout menu, but have been running into a problem; I can't find the mission files. I've found the folder in the Volition documents path, but the only files there are 9 files, all called Backup. What gives?
If you are looking for the missions that came with the game, those are packed in a .vp file (if I remember correctly, missions.vp) in the game folder. You can google for a tool to extract them. The directory layout inside that vp file must then be mirrored in your data folder