Because the manufacturing process of muskets in this era was not up to par and it was very easy to break down, Cao Yue didn't have much to do about it, he could only deal with it from another aspect, that is, to arrange a reserve team.

The first battalion of the first battalion was fully armed with muskets, and now the second battalion is also fully equipped with muskets, and the third battalion is also armed with 3,000 muskets. The second and third battalions were the reserves of the first battalion, and when the first battalion participated in the battle, not all the personnel joined the battle, Cao Yue only used 4,000 men and horses, and shot in units of 1,000 people, and the remaining 1,000 men and horses were used as reserves. In addition to 1,000 men and horses as a reserve in the first battalion, Cao Yue also prepared nearly 1,000 muskets in case of emergency.

If there is a problem with the musket in the sergeant's hand, it is made up by the reserve to ensure that at least a thousand guns are fired per round.

A salvo of 1,000 muskets, the power is not ordinary, outside the north gate of Datong, although the space is very large, but a platoon, it is impossible to stand a lot of people, a thousand guns scatterfire, the killing area is terrifying. It is basically impossible for Jiannu, who is attacking from this direction, to escape the bullets fired from the city, unless there is a problem with the gun in the hands of the Ming army sergeant on the city, or the ammunition is exhausted.

When the musket continues to fire, the cannon that has been stopped for a while will also fire again, and after a certain period of time, it will fire again.

Although the accuracy of today's artillery shooting is not good, the target group is not far away, and it is very densely arranged, and a large number of people can be knocked down with a random bombardment.

Not only did Sun Chuanting think that this was a massacre, but even Cao Yue thought so after looking at the situation on the battlefield for a while. He believed that as long as the guns on the top of the city continued to fire, even if Jiannu sent more men and horses to attack the city, all of them would die under the city, and no one would be able to climb the top of the city.

In war, compared with cold weapons, the lethal effect has an overwhelming advantage, not to mention, the army with firearms can still defend the fortified city. After witnessing the tragic situation of the slaves under the city for a while, the only worry left in Cao Yue's heart was quickly eliminated. As long as Jiannu attacked the city in this way, in this war, he was confident that all of Jiannu's army would be crippled.

If Dolgon really dared to devote all his forces to attacking Datong City, then Cao Yue would be completely confident, and the Manchu Qing would be completely destroyed in one battle. But Cao Yue knew that neither Duoduo nor Dolgon would be stupid enough to fill in the army under his command in a way like a moth to fill in the fire, and become the target of the Ming soldiers.

Such a suicidal attack would soon stop, and Cao Yue only hoped that Duoduo, who was in command of the battle, would give some orders to suspend the attack, so that his soldiers could kill and wound more of the opposing soldiers.

It was also in Cao Yue's expectation that the Mongols besieging the city came one after another, and as if they were blind, they ignored that their companions were shot at a distance from the city wall, and continued to rush forward. The Mongols are very bloody, and they fight completely with a look of despair. This kind of lifeless fighting style has allowed them to win a lot of victories in previous wars, but today, it has brought them a catastrophe.

The Ming soldiers at the head of the city, inspired by the one-sided killing, the fighting spirit is getting higher and higher, no one has any fear, almost all of them are self-confident, they never thought that the originally invincible Jiannu was so vulnerable today, the Ming soldiers almost did not have any casualties, but the Jiannu who attacked the city suffered heavy losses, and even the cloud ladder did not have a chance to be erected on the city wall.

Those who were not equipped with muskets, and the few battalions that had already been equipped with muskets with the mentality of sour grapes, many people could not change their old concepts, believing that the war would eventually be solved by swords and arrows, and muskets could not give Jiannu great damage. But after today, everyone changed their minds, and the generals who led the army became a little crazy, and they very much hoped that all the men and horses under their command could also be equipped with muskets. Many of the generals decided that after the battle was over, they must pester Cao Yue and equip their battalions with muskets.

The massacre outside the city walls continued, and the first round of more than 5,000 Mongols who besieged the city had not yet suffered half an hour before almost all of them fell under the fire of the Ming army's muskets. More than half of them died in battle, and the rest were burdened with heavy responsibilities and would not move. Some of the less injured crawled backwards wailing in an attempt to escape the hell.

Few people still have the ability to continue rushing towards the city walls.

And Cao Jie, who commanded the shooting, saw that there was no more Jiannu rushing forward, and he also decisively ordered the soldiers to stop shooting.

The few remaining Mongols, even if they rushed to the city, would have been enough to take their lives with bows and arrows.

In Datong City, although gunpowder is abundant, it must also be used sparingly, and no one knows when this war will end.

The roar of the muskets above the city stopped in an instant, and the cannons stopped firing, and after the original noisy sound stopped, many people were still a little uncomfortable, and their ears were buzzing. There were also a few remaining Jiannu, holding sabbling in the direction of the city wall, but before they could rush to the moat, several arrows flew down from the city's head, and easily shot these remaining Jiannu to the ground.

Cao Yue thought that after Jiannu suffered heavy losses in the first wave, he would immediately stop the attack and change his strategy, but he didn't expect that the gunfire on this side had just stopped, but the second wave of Jiannu's charge over there had already rolled in. In the field of vision, at least more than 10,000 Mongols wearing khaki uniforms rolled up the sand and dust in the sky, and viciously pounced towards the north gate of Datong.

"Jiannu thinks that his troops are too sufficient, and he wants us to help them carry the army?" Cao Yue held the binoculars and muttered to Sun Chuanting beside him while watching.

"Chief soldier Cao, the old man finally knows how you defeated Jiannu and Liukou!" Sun Chuanting, who was also holding a telescope and looking at the yellow stream rolling out of nowhere, joked with Cao Yue in a good mood, "You kid is not particularly capable, but he has learned the trick of musket shooting and understands how to use muskets to exert their maximum power, and Jiannu and Liukou are not used to this kind of tactics, they still use the previous method to charge, so they are killing themselves." Their stupidity has made you famous, if one day, they touch the doorway and find a way to crack your formation, then you will not be so blessed, right? ”

"With these broken guns, I can beat the attacked Jiannu like this, if I improve the musket, the artillery is also improved, the power is more, the rate of fire is higher, and I hide in the fortified city, how can they break it?" Cao Yue put down the binoculars and glared at Sun Chuanting angrily, "Old man Sun, you must have also seen it, the guns in the hands of those Francome people are much more advanced than the arquebuses we use, if our soldiers are all equipped with that kind of musket, how do you say Jiannu defeated my Ming army?" ”

Sun Chuanting didn't mind Cao Yue calling him Old Man Sun at all, and after smiling at Cao Yue, he said, "Boy, you really have the courage to be arrogant in front of the old man." But the old man still likes your temper, and he doesn't take anyone seriously. Let me tell you the truth today, and if you win this battle against Dorgon, then my old man will tell you everything, including the secret discussion with the Lord of Banzai!"

"Really?"

"Of course!"