Chapter 1577

The efficiency of the retreat in the back mountain of the cockroach base has been greatly improved. All the mobilized militiamen have put down their swords and shields again and carried materials across the mountain path to evacuate backward. The evacuation accidents of tens of thousands of people are inevitable. There are not many ways for the search brigade to protect the survivors. They can only get through the road as far as possible, As for the survivors who died of a slip or accident, the bodies became dangerous landmarks.

The retreat of the rear was carried out in an atmosphere of hope and strangeness, but the war in the front reached a climax on this day. Waves of zombies can no longer move forward as smoothly as before. Every minute, hundreds of zombies were shot by crossbows and arrows, and blocked by heavy machine guns. Most of the zombies became materials to fill the gap.

The real threat to the base is not ordinary zombies. No matter how many ordinary zombies there are, they are also targets in the long and narrow mountain path. The biggest reason why huangquan didn't have the confidence to resist before is that there are tens of thousands of type 2 zombies in the corpse group. There were too many zombies that were shot before. Before, there was no preparation to fight against zombies in the base, and a large number of corpses were eaten by zombies, Let the ordinary zombie evolve into a zombie, let the evolution zombie become a zombie type 2.

As a result, the zombies of evolution, which used to be high-end arms, have become the cannon fodder for filling the ditch here, while type 2 zombies have become the main force of zombies. No matter D2 zombies or S2 zombies, they have great destructive power to the troops and fortifications. Most of the casualties are caused by these zombies, and the limited counter-measures of the troops make them constantly give up their positions.

Today, the type 2 zombies that could not be stopped in the past could not be saved under the cover of enough heavy firepower. Under the cover of heavy firepower, the soldiers tried to kill the evolution zombies and ordinary zombies, making the zombies keep piling up, once blocking the smooth mountain road.

When the mountain road is blocked, they can't block S2 zombies. They are more flexible and good at climbing. As long as they are not crowded in the middle by other zombies, they won't be easily hit by bullets. At this time, if there is no excellent way, they can break through the pipe clamp at the intersection and make the resistance in front disappear. If there is no resistance in front, no more efforts on the mountain top can stop the zombie impact, At most, we can only make the last effort in vain before the zombie is sealed.

More than ten mountain roads in a row have been broken through in this way. The only thing the soldiers can do is to delay the zombies' progress in the mountain roads as much as possible, but the delay is always getting shorter and shorter as more and more S2 zombies appear.

Originally, I intended to stick to the last pass. At that time, all the heavy machine gun bullets would be fired intensively, so that the zombies would pile up a huge corpse mountain at the mountain pass. Then a fire would burn the corpse mountain, and then continue to shoot after the flame went out. In this way, the maximum delay time could be achieved. As long as the ammunition ran out, the whole base would be doomed. Of course, not now, After the Yangtze River fleet was recalled, Zhao Deyi was released, and huangquan found confidence and became more flexible in tactics.

Tens of thousands of crossbows and arrows poured on the heads of zombies like a rainstorm. As long as they hit the heads of zombies, none of them could survive. They all came to the ground in silence. The heavy machine gun in front of them could tear up ten or twenty zombies every time. Zombies could no longer be stored. The S2 zombies and D2 zombies were useless even if they appeared. Crossbows and arrows were not bullets, The long arrow shaft is a nuisance to S2 zombies. Once tripped by the arrow shaft, they will be shot through by more than ten crossbows when they pause a little. D2, not to mention, they do nothing in the 12.7mm bullet rain.

For the first time, today's barrage really blocked the flow of zombies. Five huge corpse mounds slowly piled up on the five mountain roads and gradually formed a 10 meter high corpse mound. At this time, most of the zombies behind the mound were evolutionary zombies, and only these zombies could skillfully climb the steep 10 meter high corpse mound.

Suddenly, more than ten glass bottles with defective corrosion sources were thrown around the mound. At the next moment, these bottles were smashed. The broken bottles sent out light green smoke, slowly shrouding the mound. After a short time, the whole mound was quietly shrinking. Then the smoke sank to the ground with the height of the mound, shrouding the zombies behind. An amazing scene happened, After the zombies are shrouded, they will emit light green smoke, as if these zombies are like poisonous zombies in the dark destruction god, but the green smoke is only harmful to the zombies themselves.

Each zombie infected with the corrosion source was melted by strong sulfuric acid, and it was shrinking and collapsing in violent convulsions, and finally disappeared. The seemingly harmless green smoke seemed to be contagious. The zombies were crowded together, and the thick green smoke continued to spread behind the crowded zombies, no matter how many zombies were crowded together, and no matter how long the crowded road was, The smoke always spread backward along the corpse's melting body.

No more zombies can be left where the green smoke diffuses. The previously shrouded mound has completely disappeared. There is a huge pit where half a pit of green erosion sources are accumulated. These erosion sources are shrinking. In the past half an hour or so, only a few shallow erosion sources are left in the one meter deep pit, It looked as if it had been refined.

The soldiers held crossbows or rifles in various postures. They all stretched out their bodies and tilted their heads to look into the depth of the source of erosion. At the same time, the word "plague" flashed through their hearts.It's plague. As long as the zombies are touched by the corrosion source, they immediately become new virus protoplasm. In the shortest time, the visible virus is transmitted to other zombies. As long as they are touched, the zombies will be dissolved quickly, just like the corpse pool formed in the gathering place before.

"Don't look at it foolishly, don't you see that the color of the thing is getting lighter and lighter..., prepare, prepare for the subsequent attack, go down two people to get the things in the pit for me, can you stop the zombie, just see this thing..."

It's Huang Quan who shouts. Standing in the fortification at the top of the mountain, he can see from the beginning to the end. In addition to handing over 25 pure corrosion sources, Zhao Deyi also has a large box of defective corrosion sources. Originally, he only intended to use it as corpse water. Unexpectedly, it has weapon effect, which makes Huang Quan do his best in surprise.

The collapse of the zombies suddenly happened on five fronts, and a large number of zombies and corpses were cleared at the same time. All the soldiers immediately relaxed. They pointed to the open mountain road below and whispered. They were proud of having such powerful weapons on their side. Everyone was happy for the unexpected harvest. The only one who was not happy was LV Xiaobu, He has mobilized ten armored vehicles to launch a fierce counterattack. How can he know that when they are about to start, they suddenly give them such a sudden attack?

The sudden change in the rear makes the zombie sea panic. The attack that has been raging these days suddenly stops. Countless zombies are consumed in just one hour, which makes the zombies in the zombie sea feel confused and threatened. At this time, the rear of the zombie sea is suddenly attacked.

Zhao Deyi didn't give his soldiers too much rest time. After he withdrew from the battlefield, he always told his soldiers how dangerous the base was and how the survivors expected their rescue. All the soldiers were silent and nervous. What Zhao Deyi did puzzled Gao Feng.

He thinks that Zhao Deyi's troops have been on the mountain for more than 20 days. After they have been removed, everyone has lost at least 20 jin of meat from top to bottom. They should not continue to fight. What they need most is rest and recuperation. Similarly, Huang Quan thinks the same way. The cockroach base of Zhao Deyi's troops also takes into account the situation of Zhao Deyi's troops, so they let Gaofeng's marines attack and Zhao Deyi's troops help.

Zhao Deyi's doing this has brought great pressure on the soldiers below, making it impossible for them to get the best rest. When Gao Feng asked Zhao Deyi with doubts, Zhao Deyi made a conclusion:

"To lead the troops to fight, they have to keep up their spirit. Once they really relax, it will take at least three months for them to recover, In all bloody battles, it is the same after the troops are removed. Three months is a period of spiritual recovery for them. Therefore, we can't let them relax. We have to keep them on the verge of war all the time, instill in them the concept of the last war, and let them know their irreplaceable position in the last war. Only in this way can we enhance their combat effectiveness and morale to the maximum. "

Zhao Deyi doesn't understand his idea, but he won't object to it. He is willing to hand over the command to Zhao Deyi. It's not his high moral character, but the performance of the Marine Corps in the main battlefield that makes him feel uneasy.

The five hour drive allowed them to gather outside the cockroach base in the shortest time. When they got to the outside of the first wall, scattered zombies were scattered on the vast flat land and roads outside the wall. The depth of the cockroach base was quite large, and it could not hold more than a million zombies, and at least one third of the place was still in the hands of huangquan.

The assembled troops didn't pay much attention to the scattered zombies. The area of zombies here is not small, and the actual number is not as large as expected. The number of zombies scattered on more than ten square kilometers is only 20000. What really attracts everyone's idea is the high wall.

Originally, as the main fortification of the base, the wall consumed a lot of materials and countless talents. It is wider and more magnificent than the outer wall of the hot spring base. On the wall, you can see the random skew of anti-aircraft guns. The huge corpse mound is several meters above the wall. Along the mound, you can see countless zombies piled up to form huge slopes, Each slope is piled up with tens of thousands of zombies, and around each slope lies the bones above the fold.

On the outside of the whole outer wall is Shura hell. Countless corpses are piled up in layers and spread out within a kilometer range. There are scorch marks left by fire everywhere in the corpses. Except for the eaten or rotten corpses, most of the corpses are burnt and rolled up.

In addition, there are many traps, large or small, filled with zombies. Everywhere, corpse stink spreads along the road. It's common for Zhao Deyi's troops to have corpse stink, but for the Marines, it's just hell on earth. Many people squat on the ground and vomit, The soldiers of the third brigade were all staring at the wall surrounded by countless corpses.

AI Qingshan's cloth bag slipped quietly and rolled on the ground, shaking out countless bullet heads. He was still scattered by these bullet heads at his feet, but his eyes were staring at countless corpses within a kilometer range. At his feet, thick black gray dust trapped his heels in half. Standing on these things, he felt uncomfortable all over."This is the bone powder left after the zombie body was burned. It was because the bone powder of the zombie blocked the sight in the gathering place before that it fell on the wall. I didn't expect that it was the same here. After all, more than 300000 zombies died outside the wall here..."

I don't know when, Zhao Deyi stepped on the soft bone powder to AI Qingshan's side, peered at the countless corpses outside the wall with him, and said in a deep voice. AI Qingshan drew back his eyes, turned to look at Zhao Deyi with a grim face, and asked suspiciously:

"Three hundred thousand? So few? Didn't you shoot 300000 zombies yesterday? They can't be so useless, can they? "

AI Qingshan used the fighting achievements of Zhao Deyi's troops yesterday to say that with such a high wall and so many anti-aircraft guns, it is possible that less than 300000 zombies could be easily occupied?

"Hehe, it's not surprising that if I were to defend my troops, I could only achieve this result. It would be good for active defense to achieve this step. Yesterday was a coincidence. We used enough space to evade and have stronger mobility than zombies, and... One less than 300000 zombies died, so there won't be a steady stream of corpses..."

"What do you mean?"

AI Qingshan doesn't understand very well. Why is there such a big difference between defensive operations and active extermination? If defense is not easy to play, why play defense? Take the initiative to attack, just like yesterday's circuitous and slow elimination, isn't it?

"You haven't seen a million corpse tide. Even if you have many comrades in arms around you, you can't feel any sense of security. If you have been to the sea, you will know that the million corpse tide is like a raging sea. The endless sea forms a tsunami. It's sweeping all over you. You can't shoot at the tsunami calmly, because before you raise your gun, Your heart will be filled with despair.

There is also strategic space. In front of millions of zombies, no amount of space is enough. The sea of zombies is not static. It will catch up with you and make you tremble in boundless fear. There is not enough turning space, not enough bullets, not enough transport vehicles. Even 100000 people can't beat the tide of millions of zombies in the wild with only two legs.

In addition to all kinds of planning and logistics, we need luck to fight zombies. Yesterday, we were lucky. We had enough bullets, enough vehicles, and enough fuel and space. There are only so many zombies, so we can solve them in a few hours, change time, place, or opponent, I'm afraid I can't do it... "

After that, Zhao Deyi turned and walked to the peak, leaving AI Qingshan with a thoughtful face. Behind him, thousands of men and women of the third marine brigade looked at the fierce wall with pale faces. The girls headed by his sister kept retreating. At the back, a huge D2 zombie stood up beside the zombie, A girl standing up to her calf height