Playing all Unlockable Factions?

[chbingle]

can someone please tell me how i can play all the unlockable factions without having to destroy them all in the campaign (which didnt seem to work anyways). When i did the way of changing the file and moving some of the unlockable factions to the playable factions i must have done something wrong and basically had to reinstall the whole game lol. any ideas or specific steps of how to do this easily for a noob like me lol. thanks!