The first batch of more than 700 troops went to Huizhong Road, and the troops were divided into two roads along the way, one with more than 200 people was responsible for clearing the zombies along the way, and the other with 500 people approached in a straight line, reaching the tunnel as quickly as possible to build fortifications.

Yanjing, the capital city with a population of more than 20 million, like Songhu City, the Pearl of the Orient, has been the hardest hit area after the mutation occurred. Most of the huge population has mutated into zombies, and the dense population distribution has led to a very harsh living environment in these areas, coupled with China's strict management system of guns and other weapons, resulting in a small number of survivors in densely populated areas, making it more difficult to survive, and the difficulty of reorganizing and assembling has skyrocketed.

The over-density of zombies has also contributed to the formation of some medium and large zombie groups, which are very destructive, their movement does not have many rules to follow, and they continue to absorb scattered zombies on the route in the movement, similar to snowballing.

Where the zombies pass, basically no one can survive, and at present, all countries have no good way to face these zombie hordes, except for the use of nuclear bombs, but what country is willing to use nuclear weapons on their own soil before the situation completely collapses.

This time, the zombie herd that threatened the Tsinghua Concord Department covered a very large area, including the northern and southern districts of the Chinese Famous Ethnic Park and the entire National Olympic Sports Center. The area of the entire zombie group is ten times that of the Olympic Village Science and Technology Park of the Huaguo Academy of Sciences, where the Department of Tsinghua Union is located, and the number of zombies is expected to be more than 100,000.

The staff's deduction is correct, and the 8.93% probability of success is based on the parameters obtained by the zombie group changing direction during the march, but even so, even if the zombie group changes direction, the tail will sweep to the Tsinghua Concord Department, destroying the formation of the 61889 unit stationed there, and making it incapacitated. If the zombie horde does not change direction, then the probability of successfully holding on is zero.

After the first troops were dispatched, the second group of troops also received orders for redeployment. The 300-strong combat unit headed for the National Convention Center and built a second line of defense between the National Convention Center and the Olympic Park. The remaining 200 servicemen are on standby at the Yenching Genomics Institute of the Chinese Academy of Sciences.

After more than half an hour, the vanguard arrived at the Huizhong Road Tunnel, and the commander was Xu Yongping, who was born in the National Defense Technology University and was Shao Yifu's protégé when he was the president of the National Defense Technology University.

When Xu Yongping arrived near the Huizhong Road tunnel, he immediately sent an elite reconnaissance force to the front. The engineer team was then assigned to carry out multi-point blasting on the outside of the tunnel, opening a gap at short distances.

Next, the engineer team planted high-explosive ZHA ammunition in the tunnel, and Xu Yongping's plan was that once the Huizhong Road defense line could not be defended, these explosives could be detonated to strike at the zombie group, and destroy the tunnel line, adding difficulty to the movement of the zombie group, which could effectively delay time and give the rear units more time to prepare.

At the top of the tunnel, the vanguard had quickly erected improvised fortifications, and Xu Yongping stood on it looking at the water cube and bird's nest in the distance, frowning.

It was a battle of great disparity, and since the day of the mutation began, Xu Yongping has personally participated in a number of operations, including the rescue and relocation of Peking Union Medical College Hospital and Tsinghua University campus, as well as several small-scale defense battles of the Chinese Academy of Sciences' Olympic Village Science and Technology Park. Not only that, Unit 61889 lost more than 80% of its strength on the day of mutation without collapsing, Xu Yongping contributed a lot, and the more than 1,200 soldiers who were retained were the hope of the Tsinghua Concord Department.

The reconnaissance force at the front sent back the news that the zombie group was approaching here, and the front line had crossed the Beiding Niangniang Temple and the Olympic Museum.

"It's close", Xu Yongping muttered, raised the high-powered telescope in his hand, and looked in the direction of the landscape avenue on the central axis of Yanbei.

Patches of zombies have already appeared in the camera's field of vision.

"The explosives have been planted," a soldier came to report.

Xu Yongping nodded, his courage and confidence all came from this army and the motherland behind him.

"The status of the second unit?"

"Clean-up work along the route is still underway," the correspondent replied.

"Inform them, speed up the clearance work, and come here as soon as possible to reinforce them." Xu Yongping gave the order.

Five hundred against one hundred thousand, even if you kill a pig, it will take a few days, Xu Yongping smiled self-deprecatingly.

When the overwhelming zombies appeared in the field of vision of the soldiers of the first line of defense, almost everyone gasped. Dense zombies wriggled in this direction among the corpses, like flying locusts in transit, obscuring all the roads in sight. The scouts have all withdrawn, and during the retreat, the scouts have carried out small-scale demolition of some buildings along the way, which have formed new obstacles after the blasting, effectively slowing down the movement of the zombie hordes.

When the zombie group moved to a distance of about 300 meters from the Huizhong Road defense line, Xu Yongping gave the order to open fire to the first unit.

The purpose of the bursting automatic weapons carried by the first unit was to block the front of this line of defense by firepower.

The zombie group soon received the baptism of the first batch of bullets, and a large number of zombies in the front row were knocked to the ground by the bullets, and the front of the entire zombie group was full of flesh and blood, and the stumps were spread all over the ground. The bullet only brought fatal damage to a small number of zombies, most of the zombies were still alive because the part that was hit was not the head, and the zombies who lost their limbs struggled and crawled on the ground, and the zombies behind them crossed their heads and were gradually trampled into flesh.

The movement of the zombie group brought damage to the injured zombies on the front line, even more than Xu Yongping's firepower.

The movement speed of the zombie herd began to be hindered by the firepower, but the terrible thing about this group of monsters is that they do not feel pain and fear, and only the desire for the flesh and blood of the living is in their brains, and some of the zombies that walk in front of them begin to run.

"Tell everyone that the firing point is raised to the upper body, with the head as the center as possible." Xu Yongping decisively began to issue a new round of orders.

The sound of explosions came from the Water Cube and the Bird's Nest, attracting many zombies to move there, and the pressure on the front line was shared a lot, which was a meritorious contribution to the blasting operation of the reconnaissance force.

The width of the defense line of nearly 2,000 meters brought a lot of pressure to the first unit, this unit only had 500 people, and the per capita firepower had to block the width of 4 meters, and the bullets poured forward like a tide, and more and more zombies fell, but these zombies fell like the end of the slaughter, and ten more rushed up behind them.

The dense buildings in the battle area have become the support of the defensive forces, and if it is a plain area, the impact of the zombie hordes will be increased several times, and there is no means to stop their advance except for artillery scrubbing.

However, the nearest artillery unit was the artillery division of the 30th 8th Army, a few hundred kilometers from here.

Artillery washing has become a luxury.

In the National Center Shelter under the Qinhuangdao National Geopark, the hearts of all those who know the situation of the Tsinghua Concord Department are hanging.

Rong Yun is the same, the satellite monitoring department sends an instant satellite photo every few minutes, and the route of the troops on the side of the Tsinghua Concord Department and the movement trajectory of the zombie group are clearly shown in the photos.

"It seems that Comrade Shao Yifu has made arrangements," Rong Yun said.

"But time is a little not on the side of the husband," Ding Yiqiu said: "The latest deduction of the General Staff, the defensive limit of the first line of defense is 15 minutes, and the zombie group will quickly break through this line of defense." The Helicopter Brigade of Ge Congxian still needs about 1 hour to arrive at the Tsinghua Concord Department, and it will take at least 4 hours to transfer personnel and equipment after arrival, which is still an ideal state, so Kazuo is now racing against time. ”

"Now it depends on Comrade Kazuo's organizational ability and the determination of the Chinese soldiers to fight to the death."

"Comrade Shao Yifu's plan has been sent over, we have all seen it, if the transfer is successful this time, the research progress of the Tsinghua Concord Department will also be greatly affected, the new stronghold, we can increase the defense force, but we can't draw too many troops from the periphery, because there are several large shelters in the Hebei region, and the people of the country also need troops to defend them."

"The Li family in Funan asked us for help, and according to the data reported by Funan, their surviving population is about 50,000, and Marshal Li Xian hopes that we will send troops to help them defend the satellite island." A senior executive at the National Center said.

"We have only the 16th Army in Liaoning and the 39th Army in Jilin in the entire northeast, and both of them are responsible for defending the people, and we have no living force to support them. Tell the Funan side that it is recommended to abandon Xingzhou, which is not conducive to the defense, and transfer to the direction of Dandong City, and the Dandong side will organize ships to transfer some important personnel in Funan to a safe shelter. Someone from the military spoke.

Rong Yun advised: "The affairs of Funan are at the end. ”