1. Campaign
I think there should be deeper cultural depth to the factions' that should be relayed on the battlefield. An example would be instead of just the empire faction getting a build time bonus for settlements the empire would also have unique siege attack and defense capabilities not available to other factions or Imperial factions could employ stakes before combat begins. Sturgians run faster in the snow but what if they had cultural advantage was they could attack villages without triggering a war just having that one party becoming hostile to their target faction for XXX amount of days. The Sassanid could be given access to a unique unit such as a war elephant that requires up to four soldiers to use one driver three archers and the war elephants presence has a morale impact on enemy troops. The Battanians could have an War Cry advantage that takes effect upon first contact with and has a severe morale impact on low tiered troops or they can have a chariot similar to the war elephant mentioned earlier. The khergits could get some type of sacking city mechanic where they take a city but have the option to keep it or just take a huge amount of loot but the former faction keeps the city or they could take a castle and leave it a ruin until another party comes to pay to get it fixed. This is meant to give the background of the game more cultural depth
