seriously, this campaign is the most fun I had in years.
the only campaign remotely close to this was playing Broken Crescent as the Crusaders.
However there is one thing that kills the game for me and that's "Vigils", the AI is constantly recruiting these poor bastards and when the AI finally recruits decent units it spams first cohorts.
there does not seem to be a balance to the recruitment at all. it is either spam the best troops available or the worse ones available.