I'm wondering if it's possible to change when the game calculates GA points for victory. Sometimes I want to just play an Early era campaign, for example, but I don't want to necessarily play all the way to 1453 to count my victory (which is usually inevitable by that point anyway).

If I just change the Early campaign end point to, say, 1205, would that allow GA points to be counted then, so I could get the nice little victory screen in 1205, or would the campaign just... end?