Jing Wen also has a rough understanding of the so-called infantry and artillery coordination. If you want infantry and artillery coordination, you must determine a "c" time. The so-called "c" time is the time when the infantry occupy the front line. In other words, it is the time when the infantry rushed to the enemy in the front position. When the infantry charged, the artillery must start preparing for artillery fire to suppress the enemy's firepower. Of course, the Goguryeo people did not have artillery in this era, so the pressure of artillery was reduced a lot, just drive those artillery down the city tower.

As for the artillery preparation, the infantry will start charging until the city tower is occupied. Once the infantry charge is occupied, the cannon can gradually extend backwards to attack the enemy's living forces and prevent the enemy's living forces from resisting. This time, the snatching the city tower is actually similar to snatching the beach land, but the means are much simpler than snatching the beach land land. The first group of suicide squads must be sent to the city tower and then guarding the city tower, so that the second group of troops can gradually rush up and strengthen the guarding force.

After about three hours of training, everyone finally mastered the so-called "c" skillfully, allowing them to fight relatively perfectly.

"Remember, the first batch of infantry led by Dugu Mou must occupy and rush up to the city tower when the hourglass is leaking, and the artillery must also extend the artillery fire when they approach the city wall, that is, when the hourglass is leaking to one-third of them. Don't have any accidents. Once an accident occurs, it may be a mistake to hurt your own people." Jing Wen said.

"Yes!" Dugu Mou and Zhou Bin said.

Soon, both sides began to prepare for the first actual combat of infra-cannon coordination. This time, the actual combat was very risky and had no experience before, so they didn't know whether it could be successful. Infra-cannon coordination should have very accurate control of time, but later generations had accurate watches such as watches to calculate time, but this time and space were not so accurate. So Jing Wen finally found an hourglass that could be used to calculate time.

According to the previous plan, after the hourglass leaked the sand, the first group of soldiers led by Dugu Mou had to occupy the city tower. At this time, the infantry of Goguryeo was suppressed to the bottom of the city tower and could not resist at all. Once the city tower was occupied, the artillery would start to extend firepower and then continue to cover the infantry.

As for Dugu Mou's first batch of infantry, the responsibility is to guard the city tower and then let the second batch of infantry climb up. After the second batch of infantry climb up, the garrison can be increased. Then climb up continuously, and the purpose of occupying the city can be finally achieved.

This is actually not much different from the traditional siege method. The only difference is that when your own soldiers siege the city, there are artillery to cover it. With artillery to cover the siege troops, it can avoid being hit by the enemy's defending troops, so that the city tower can be occupied smoothly and then the rear will continue to support it.

"Prepare the gun for the general, use the shotgun!" Zhou Bin shouted.

Zhou Bin also looked serious. If the artillery fire and infantry coordination fail this time, then the artillery commander will definitely be sent to the Military Law Department. After all, if his artillery fire hurts his own people, it will be a big crime. I am afraid he must take the blame. However, Zhou Bin didn't care much, after all, he believed that infantry and infantry coordination must be the future trend. If it can be proved that infantry and infantry coordination can be successful, as one of the inventors of infantry and infantry coordination, he will definitely be reused in the future.

The change in the war model means that a group of conservative officers will be kicked out of the battlefield, and a group of people who have adapted to new tactics and new ideas. After Jing Wen invented the firearm, many conservative officers have been like this. The remaining senior generals are all relying on the face of the founding fathers to make ends meet. Even Li Jing, the military god of the Tang Dynasty, is about to retire. I am afraid that after the conquest of Goguryeo, Li Jing will retire. This will be eliminated by history. Because new tactics have emerged, those officers who have adapted to the old tactics will gradually be renewed.

If Zhou Bin can become the inventor of the infringe artillery coordination tactics and prove that it can work, then he will definitely be reused next. Infantry artillery coordination is definitely a great invention, and this is beyond doubt. After all, being able to charge while covering the artillery can be said to be invincible in the attack. In this way, even if it is not a siege in the future, artillery can be used to fight, which is very helpful for future combat.

"Three! Two! One! The firepower is ready to begin!" Zhou Bin said.

"Baopao..." The artillery began to fire shells.

Jing Wen also began to turn the hourglass upside down, and the hourglass began to leak. The hourglass process will be about twenty minutes, so this time the firepower preparation will be suppressed for twenty minutes to ensure that there will be no enemies on the enemy's Anshi City Tower.

“Wow…”

The Goguryeo troops on the Anshi City Tower began to suffer casualties, but the Goguryeo troops were already prepared. Once they began to be attacked by such shotguns, they immediately retreated from the city tower.

"Start pouring water!" Yang Wanchun shouted.

According to Yang Wanchun's experience, once the enemy starts firing this kind of shotgun, the next one is the kind of bomb that can explode, so Yang Wanchun begins to order water to prevent the explosion of the bomb from exploding on the city tower and gradually blowing up the city wall.

"Bump..."

The cannons were still firing shotguns, but not flying thunder cannons. Obviously, they were trying to suppress fire, not wanting to blow up the city walls.

"Well? What exactly does the Tang army want to do? They don't use the weapons that can explode, but why do they keep using these small particles? We have already withdrawn our troops, but why are they still firing them? Don't they know that this is a waste of weapons?" Yang Wanchun thought in surprise.
Chapter completed!