Keep at least one faction underneath 'nonplayable' to avoid bugs. In the original campaign, the maximum number of playable factions is 20.
The file should begin with a list of faction names, sorted underneath the words 'playable,' 'unlockable,' and 'nonplayable.' Select all factions underneath 'unlockable,' cut them from the document, and paste them into the list under 'playable.' Before you do the same for the factions underneath 'nonplayable,' read the following warnings:
