"Major Xu, the eastern section of the Huizhong road defense line is facing an emergency in the direction of Beichen East Road!"

"There are still too few people," Xu Yongping said helplessly. At this time, it is like robbing Peter to pay Paul.

Many zombies have passed by the east side of the bird's nest and have arrived in front of block K of Huiyuan Apartment, less than 200 meters away from Huizhong road tunnel.

"Add 50 men to the eastern section to keep the firepower of the whole defense line even."

Xu Yongping looked at his watch and found that more than an hour had passed since they started.

"Hold on for a while," Xu Yongping said to himself.

At a distance of 150 meters, the zombies continued to advance towards Huizhong Road, and the flames and bullets could not stop them. The bullet casings beside each soldier in the defense line were piled into a hill. The muzzle of the gun continued to spit fire, and the bullet casings flew to both sides, jingling into a string.

A bullet cut off half of the head of a zombie in the distance. The zombie walked straight ahead and fell down, and was trampled on by other zombies behind; The bodies of some zombies were torn in two by bullets, and the upper half of their bodies were still crawling tenaciously on the ground; Some zombies have lost their arms, walking a little unbalanced, and bumped into the zombies nearby.

In an area of several square kilometers, corpses are everywhere. The zombies are approaching, and there are no casualties in the defense forces. However, Xu Yongping knows that as the zombie group gets closer, the number of casualties will immediately appear and rise in a straight line. The result is doomed. The only difference is when the result comes.

At 100 meters, several fire points on the defense line suddenly went out of fire, and the soldiers quickly changed their weapons to continue to maintain fire suppression.

"Inform everyone," Xu Yongping shouted to the signal soldiers, trying to make his voice louder than the sound of bullets: "speed up the consumption of surplus ammunition and make preparations for withdrawal. When the front of the zombie group reaches a distance of 50 meters from the defense line, the defense line will be abandoned. All personnel will conduct a round of bombing. After the bombing, they will immediately retreat to the second defense line."

The order was transmitted, and the soldiers poured their ammunition even more desperately. For a while, the zombie group was briefly suppressed.

As the distance got closer and closer, the losers finally felt the breath of the living people in front of them. What attracted them before was the sound of gunfire. Now the human figure on the defense line was in front of them. The bloodthirsty beasts began to roar. They quickened their pace and rushed to the Huizhong Road defense line.

The sudden acceleration of the corpse group caught everyone on the defensive line unprepared, and some people began to forget to pull the trigger.

The distance of 50 meters quickly arrived, and the soldiers on the defense line began to drop bombs and retreat.

Hundreds of grenades were thrown at the corpse group, and a few seconds later, they bloomed in the front line of the corpse group. The soldiers took their weapons with them and began to withdraw from the defense line. All other supplies were abandoned.

Grenades have limited damage to zombies. Some zombies rush through the smoke and come to the Huizhong road tunnel, which is five or six meters high. The wall blocks the zombies outside. There were several openings on the wall outside the tunnel, and some zombies poured into the openings.

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More and more zombies came to the wall. The first zombie was pressed under the wall, and the next zombie climbed to the top of the tunnel by stepping on the body of the zombie. The "human wall" was stacked up, and the zombie climbing on the top of the tunnel crossed the line of defense here and chased the retreating soldiers.

The retreating formation began to become disordered, and the soldiers who fell behind spontaneously turned around and started shooting at the zombies who came after them. Their firepower successfully suppressed and attracted the first zombies to cross the line. More and more zombies rushed up, and the soldiers who covered the retreat of their companions were gradually submerged in the tide of corpses.

"Prepare to detonate the high explosive in the tunnel," Xu Yongping ordered during the retreat.

The entire front of the zombie group has passed through the tunnel defense line. This time is the most appropriate time to detonate. In addition to bringing maximum damage to the zombie, the tunnel after the explosion can also be used to separate the zombie group. In this way, the number of the first group of zombies close to the second defense line will not be large, and the defense pressure is not great. The retreated soldiers can have time to rest and re-enter the battle.

The soldiers behind the cover were killed one by one by the zombies who chased up and shared their food. Their sacrifice saved the lives of more companions. During the retreat, more than 100 soldiers died on the road. These are the elite of China.

Xu Yongping felt a pang of heartache. He could name almost every one of these soldiers. Now he has brought them, but he can't bring them back.

On the Huizhong road tunnel, a fire dragon soared up along the tunnel line. The huge explosion sound accompanied by the vibration was transmitted to the second line of defense. The sound wave and the earthquake sensation passed through the National Conference Center and reached the Yanjing Genomics Research Institute of the Chinese Academy of Sciences. All people in the Tsinghua Union Medical College felt the earthquake. No one would think it was an earthquake. Everyone was guessing what was happening ahead.

In the conference room, the cigarette in his hand has burned out, and the cigarette butts are still in Shao Yifu's hands.

"Report to general, general Ge Congxian's helicopter brigade has arrived and is waiting for further instructions." The correspondent outside the door reported loudly.

Shao Yifu threw the cigarette butts he had held for a long time into the ashtray, got up and walked out of the door of the conference room.

Huizhong road tunnel was completely destroyed by high explosive. There was only a deep pit more than 2000 meters long on the original tunnel, and the two sides of the pit were burning corpses. In the north of the deep pit, the zombies crossing the tunnel were knocked down by the blast wave of the explosion. At this time, they climbed up one after another and followed the zombies in front to continue chasing the retreating soldiers.

In the south of the pit, the subsequent huge corpse Group continued to move forward slowly, and the zombies at the forefront reached the edge of the pit. They stopped, but were pushed into the pit by the endless stream of zombies behind them. More and more zombies are crowded into the pit. If someone looks at the ground from the high altitude at this moment, he may be shocked by this scene. The zombies spread over the whole area like marching ants.

The Coordination Department of Tsinghua University has been busy. Ge Congxian's helicopter troops have arrived and landed in the science and Technology Park of the Olympic village of the Chinese Academy of Sciences. Qin Yi and other scientific researchers have been arranged to board the plane. Most of the scientific research equipment were placed in the second batch of evacuations. At this time, most of them had been unpacked and placed on the open space.

Qin Yi boarded the helicopter and looked at the second floor of the genetic research institute. General Shao is not on the withdrawal list arranged by him. Qin Yi knows that he is still in the Research Institute.

Qin Yi shook his head and looked very quiet. His pale short hair was a little rusty in the wind brought by the helicopter propeller.

By the window on the second floor of the Research Institute, Shao Yifu and Ge Congxian are standing there looking out the window at the plane ready to take off.

At last, all the scientific research personnel can be transferred, and Shao Yifu's task is almost completed. According to the remaining time, the helicopter brigade can have a chance to return, and then the remaining scientific research equipment will be operated together.

"What about the soldiers?" Ge Congxian asked.

"I'll take them to try to transfer from the ground," Shao Yifu said solemnly.

"Won't you come with us?" Ge Congxian was surprised.

"The transport capacity of helicopters is limited, so we should install as many important equipment and documents as possible," Shao Yifu said. "The soldiers are still fighting on the front line, but I, as their commander-in-chief, left first. What is this?"

"I will stick to the end with my soldiers," Shao Yifu said. "If possible, I will take them out."