Su Yi used Changgou as the first line of defense and used the range of Qin crossbow to continuously harass and attack the coalition forces' pre-war fortifications.

In this case, a certain price must be paid to complete the geocomposition.

After observing the situation again, the deputy general couldn't help but say: "Sir Huang, based on the current distance, can our army adopt stone throwing machines to suppress it and provide certain coverage for the soldiers who fill the soil?"

"This is not impossible, but I'm always a little worried." Huang Zu frowned slightly and said, "In terms of long-range ordnance, the Qin army is obviously better than us."

The deputy general said: "The last general suggested that the stone bullet be replaced with the oil altar and use the oil altar to attack Chengguan, which would be better. The Qin army would definitely not dare to show up."

When Huang Zu heard this, he thought about it and said, "When it comes to stone bombs, we can roll big stones into the ditch, fill the pit with stones, and then cover the soil, so that the fortifications can be completed faster. As for the stone throwing machine, it can only play an auxiliary role and cannot stop the Qin army's heavy crossbows. Moreover, they will definitely point the finger at our stone throwing machine. This is also the concern of this commander. You must know that we only have twenty of them. If they are destroyed, it will have an absolute impact on the next siege."

"But Huang Shuai, if this is not the case, the loss of the soldiers will be too serious." The deputy general said anxiously.

"Well..." Huang Zu weighed for a moment and said, "Okay, just do what you said. In addition, after the observation just now, although the Qin army crossbow bed is powerful, it also has its disadvantages. That is time. After they fire the crossbow, they need to prepare a lot of things and spend a lot of effort to reinstall the heavy crossbow and conduct a second launch. You can also grasp this gap and make good use of this space."

"The last general understands." The deputy general suddenly realized.

Huang Zu waved his hand: "Go and pass the order."

"promise!"

Next, the coalition no longer easily stepped into the range of Qin crossbows, but first pushed out a stone thrower and then filled the oil altar.

During this period, the Qin army had already filled a new round of heavy crossbows.

However, the stone throwing machine was obviously faster. With a command, twenty stone throwing machines rushed together, and a row of oil altars drew an arc in the air, smashing into various parts of the city gate one after another.

The sound of explosions came one after another, and Mars shot everywhere. Naturally, some Qin soldiers were injured by the bomb and burned, making shrill screams.

As the commander of the entire army, Su Yi was protected by the heavy shield at the first time. After standing on the shield hand, he directly ordered: "Let the soldiers avoid it first and protect the crossbow bed. These things are hard-won and must not be damaged at all. At the same time, aim the heavy crossbow at the coalition stone throwing machine and wait for the commander's order!"

"Yes!" Goldman Sachs immediately took the order, then began to run around the city gate, shouting loudly.

Under his command, the Qin army soldiers bent down and ran to avoid bombardment from the oil altar. Other soldiers in charge of heavy crossbows began to push the crossbow bed to the rear, and in front of the crossbow bed, they quickly formed a shield formation.

The two sides started a long-distance battle based on the long groove.

The coalition's oil-mounted shooting has never stopped. After a few rounds, the deputy general couldn't help it again: "Sir Huang, why hasn't this Qin army's heavy crossbow been launched yet?"

"Push the big stone into the ditch and fill the soil." Huang Zu said.

This was an action that must be completed. After receiving the order, the coalition soldiers began to transport the Dashi that was originally planned to attack the city gate to Changgou.

The whole scene looked like there were countless porters, and the stone thrower kept filling the pits and covering the coalition forces.

However, when the soldiers approached Changgou, Su Yi seized the opportunity and at the order, the Qin army's heavy crossbow was launched again.

The six crossbow beds had already adjusted their direction, aimed at the six stone throwers, cut off the ropes and started them together.

Three thick crossbow arrows shot hard and crashed into the stone thrower. The effect can be imagined.

With the rumbling sound, the upper half of the six stone throwers were directly penetrated, and the wood chips flew across the board, making a crackling sound. The huge creature could not bear the force and fell to the ground with a bang, and smashed the nearby soldiers to pieces.

This is exactly what Huang Zu was worried about before, but the Qin army's heavy crossbow had been fired, and it would take a lot of time to complete the second round.

Seeing this, the general of the Ling Army, who was commanding on the front line, also roared quickly:

"Quick! Quick!"

"The Qin army's heavy crossbow has been opened! There is no time to fill in crossbow arrows, it is very safe now!"

"Hurry! Move quickly!"

With the shouts of the generals of each division, big stones were pushed into the ditch one after another. The stone area was large enough that filling the pit in this way could indeed achieve the best effect.

This ditch was dug at a depth, and a row of stones could only be filled with a bottom. However, under the arrangement of Huang Zu, the coalition forces prepared well. It was not just a row of soldiers, but a lot of them gathered. The first row pushed the stones down and retreated immediately, and the second row followed suit.

Logically speaking, the Qin army's heavy crossbow cannot be completed quickly, and the coalition stone throwing machine can be removed.

Seeing that the previous six planes were destroyed, the deputy general hurriedly said: "Sir Huang, will you remove the stone throwing machine? Otherwise, the Qin army's heavy crossbow will be filled and destroyed again."

Huang Zu shook his head slightly: "Since you have chosen to cover the soldiers with the cost of stone throwing machines, then do this. If you withdraw now, although the Qin army's heavy crossbow cannot be launched, without the suppression of the oil altar, they will definitely take the opportunity to release the large-scale arrow formation. Then this long ditch will not be completed today."

"this……"

The deputy general didn't know what to say.

On the battlefield, although the strikes of stone throwers were no longer so frequent, they effectively prevented the release of the Qin army's arrow formation.

The soldiers of the coalition army were still racing against time to fill the long ditch. Several rows of stones rolled down and built together. The deep ditch was almost leveling the ground. At this time, the second round of heavy crossbows of the Qin army was almost completed.

“Adjust the direction!”

A Qin general shouted loudly.

The soldiers in charge of the heavy crossbow began to push together and aimed the spearhead of the crossbow bed at the stone thrower below.

"The first team is over!"

"Team 2 is finished!"

“…”

"put!"

The sword cut off the rope, and the thick and sharp crossbow arrows were fired together again, and with the sound of breaking the wind, they hit the six stone throwers of the coalition forces.

The impact was almost the same as before. In addition, the crowds gathered by the ditch and the stone thrower fell down, and another small casualties were killed.

Of course, this accuracy is not 100%, and there are two or three shots that are a little bit crooked.

At this time, the coalition soldiers knew the interval between heavy crossbows and knew that it was very safe now. They rushed forward and waved their shovels desperately.

"Quick! Fill the soil--"

The manpower was so great that it was not long. The long ditch that was already filled with stones was quickly covered with new soil. The soldiers all went up and stepped on it, and then shoveled the soil nearby.

In this way, the Qin army could no longer prevent the coalition fortifications from being completed.

Seeing this, Su Yi from the city wall also said calmly: "Today's battle is almost over. Please check the consumption of arrows and casualties."
Chapter completed!