Quote Originally Posted by Orda Khan
Where I have no doubt that spies and assassins are a part of history, I think they have become too great a part in TW. I currently see ridiculous amounts of them scurrying around the map. They are far too cheap in both cost and use and should be a minor part of the game and not as it seems, the major one
Now, it would be more even if the Mongols engaged in the espionage war as well, like they did historically. Genghis and his successors used a highly effective system of traitors and agents to pave the way for their conquests. Imagine 30+ Mongol assassins and spies appearing maybe 10 turns before the main armies show up to cause mayhem and destruction all over the place.