I think we should have weather that doesn’t just change the scenery but also can effect the battle. For instance if it rains then the ground becomes muddy and will bring defects to cavalry and heavy infantry but will make light infantry and archers more effective. Another is if the map is during a drought period which will make the forest less helpful for archer defense and riflemen have a chance to start fire in the forest with their gunshots. Maybe the map is foggy which will make surprise attacks easier but the farther your men get from each other the harder it is to see them and if their in a fight they’ll have a chance on accidentally killing archer during a clash, this would make defensive playstyles more preferable and the battles more chaotic.
Weather plus night and day and this game will become one of the BEST there is !