Well if it's ingame, uh, no offense, but I see Bretonia doing even better than in RP.
As for RP, I'm going off essentially vanilla, because all the disco stuff makes no sense and is ridiculously inconsistent. Zoners have been around for about 100 years and except for one lolplanet their 'empire' costs of about 3000 people who trade water and food to corsairs. CR, well they can make up whatever they want about their faction, but I don't think it will really be accepted by the community unless it's reasonable (i.e. small). The corsairs are big, sure, but only a tiny percentage of a house, even if that house is at war.