At the very least, there was one thing that Black Robe was sure of. In such a high-intensity battle, the expeditionary army's reckless attacks would definitely deplete all of the 6th Combat Brigade's ammunition very quickly.
It wouldn't take long. Ten hours would be enough. If the attacks were even fiercer, eight hours might do it.
A brigade only had a limited amount of ammunition they could carry around. Furthermore, every military unit had a strict rule on carrying ammunition. This was commonly known as the standard ammo load.
If one were to describe it in detail, it would basically be like 60 rounds of pistol ammunition, 200 rounds of rifle ammunition, 500 rounds of machine gun ammunition for a platoon, 1,500 rounds of ammunition for coaxial machine guns for tanks, and 120 rounds of 82 mm mortar ammunition for each battalion.