So obviously a system like this would be very low on the priority list, but I think it would be cool if it were possible to create your own flags that troops could carry into battle, I am not sure if there will be an integrated regiment system in the game but I think it would be cool if a regiment could customize their flag and carry it into battle, I do understand the desire for historical accuracy so as an alternative a list of historical flags could be made that correspond with historical regiments, these could be used for multiple in game regiments as I don't think that every regiment had a different uniform