AI factions will attack settlements more, better Ai expansion, trajectories of archers lowered, combat length raised 10%, chance of ambushes raised, chance of civil wars raised 5%. Better mix of units for armies.
Peace easier to get in total war stance, lowered chance of military alliances, raised chance of military access, raised penalties for trespassing, raised chance of upgraded treaties in war stance, raise penalties for expansionism and war, lowered threshold for hostile relations, raised chance of client state.
Ai in defensive and military alliances will be more likely to grant military access and join in battles. Client states will be more likely to grant military access and join in battles and do trade agreements.
Diplomatic marriage will result in better chance of non aggression pacts and or peace.Ai armies will be tougher to defeat.
Units will recover faster from routing, raised morale penalties for fleeing generals and having multiple flanks not covered. Raised upkeep on armies in sieges and force march stance