It's not like that. XP goes towards homecity levels. The ranks you mentioned are based on winning/losing. For example someone could have all level 131 HCs with lots of XP but lose 99% of the time, so still be a conscript.
My grandmother slaps harder than the Agra Fort shoots. And she's dead. ~ Ender_Ward
By the same token, if I attempt to operate the mouse using nothing but my butt-cheeks, micro will also come down to "luck." ~ Beatnikjoe