Yuntian City warfare command room.
Beside Zhang Yukan, Si Tianyan, and other Heavenly Masters lay a vast map that depicted all the terrain outside Yuntian City, divided into dense grids.
Each grid was meticulously marked.
"Thanks to the unique terrain outside Yuntian City, when the demons besiege the city, they will inevitably attack from this side. Each of these grids corresponds to different firing angles of the Sword Heavy Cannons. When the time comes, apprentices and soldiers simply need to shoot at these areas according to the messages from the front line,"
Gu Jinlai said with a smile, "In other words, when the demons are still dozens or nearly a hundred miles from Yuntian City, they will be under our artillery's fire. Moreover, the power of each heavy cannon does not pale in comparison to a strike from a Primordial Spirit Monarch."
