Converting back for a campaign

[Mobhack]

OK - then the OP must be doing something for his campaign to ask for a different nationality from whatever his original was.

(Scenhacking the HQ units nationality might work, if he went and changed that to a Canadian unit?)

Either way - savegame data hacking is not "supported" - and is one of those undocumented things that may stop working later on e.g. if there was a code or data change, so don't rely on it.