Hi, Justinianus16
Thank you very much for the suggestions.
a) the way counter-espionage is calculated - it will be updated.
b) the number of battering rams that can be used in a siege - the change is related to the number of allowed units in a Fortress siege against alliance holdings. The number of allowed units in a Fortress siege against alliance holdings is 5 times the Fortress garrison, the number of allowed units in a Fortress siege remains 3 times the Fortress garrison in a Fortress siege in personal battles. (the information has been updated in Military -> Battle Mechanics in the How to play manual). The number of battering rams remains as before - the allowed number of battering rams is equal to the Infantry number (3/5 times the Fortress garrison) divided by the number of people required for Battering Ram recruitment.
c) the characteristics of the fortress - the table in Military -> Fortress in the How to play manual contains the correct values:
http://www95.imperiaonline.org/imperia/game_v6/game/help/?section=military&lang=en&speed=2#table-military_145Best regards!