Doomsday Catastrophe

The rubber tube is connected to the blower, and when the switch is turned on, the gas in the high-pressure gas cylinder is sent into the cave. These gases have different colors and properties, but they all have one thing in common, that is poisonous! Not to mention that zombies can't survive in these gases, even elephants can't survive.

Outside the cave, everyone was wearing a gas mask. If there is gas overflowing, it would be bad to accidentally injure your own people. These gases are not simple, and a casual breath may be life-threatening.

Among the gases injected into the cave, the most lethal ones are cyanide compounds, in addition to sulfides and chlorides. As long as the zombies smell these gases, they will foam at the mouth and die, and all the zombies in the cave have entered In the dormant state, the dormant zombies consume the least energy, and they can still survive two months.

Obviously, the zombies didn't expect Yanjing to attack when it was snowing heavily.

The tens of thousands of soldiers in the southern region have already occupied an area of ​​tens of square kilometers. Such an area obviously cannot cover all the burrows in the south, but the area it covers is also very large. Once today's battle is successful, it will only take a dozen day, then the zombies in the entire southern region can kill him.

Xiao Sheng led the special forces standing in the distance, watching what happened on the battlefield, and suddenly sighed: "This method is very good, and there is no need to cremate the corpses of these zombies, as long as the entrance of the cave is blocked, these zombies can be set up immediately." It’s a monument, it would have been better if I had used this method earlier.”

Zombies are all hiding underground. Under normal circumstances, the weapons on the human side have little effect on the zombies hiding underground. Moreover, the thick land can insulate the severe cold. Zombies hiding underground will not freeze to death at all due to the low temperature. .

However, under the attack of poisonous gas, the zombies have no power to fight back at all, and can only be killed one by one, and the underground caves they dug before have now become burial places. As long as all the entrances of the caves are blocked, then These zombies were buried alive.

The poisonous gas injected into the cave is all gas denser than air. In this way, the poisonous gas injected into the cave will not dissipate for a short time. During this period, no matter how many zombies come to the cave on the first floor, the status quo cannot be changed , because the mutated zombies cannot withstand the attack of poisonous gas.

Moreover, if the passage from the first floor to the second floor is not blocked in time, the poisonous gas may sink, further threatening the lives of the zombies on the second and third floors. The zombies on the first floor are irrelevant, but the second floor There are many mutated zombies and corpse kings on the third floor. This is the core strength. Once damaged, it is irreparable.

The battle in the southern region has finally changed within half an hour. The corpse king can feel that the number of zombies he can control is constantly decreasing. Although all the dead are ordinary zombies, but according to this progress, the southern region Most of the zombies will definitely be killed within a short period of time!

Under normal circumstances, the corpse king doesn't care about the life and death of ordinary zombies at all, and the number of one hundred and eighty thousand dead is nothing at all, but if more than half of them are damaged, the scale of the corpse tide will definitely decrease. survival will be affected! What's more, now that the poisonous gas is being poured into the ground, tens of thousands of zombies are killed every minute. The corpse king can't bear such a drastic attrition rate.

As a result, the zombie king in the southern region immediately sent out mutated zombies to investigate the situation. Whether it was a speed zombie or a strong zombie, they all sent out to investigate the situation. Why did the ordinary zombies on the first floor die one after another? What happened? The situation, could it be that humans have begun to attack underground caves?

The corpse king thought that it would be easy for speed zombies and strong zombies to go to the cave on the first floor to explore the way. Even if they can't beat the human army, they can at least go back underground to report the situation safely, but this is not the case. The mutated zombies who explored the road never returned, just in line with the proverb: If a meat bun beats a dog, it will never return.

The corpse kings in the southern region noticed that something was wrong, so they quickly gathered on the third underground floor and began to discuss the current crisis. The corpse kings were already terrified. They hid in the deepest part of the ground, in fact, they were afraid of the danger brought by human technology. threat, and now ordinary zombies are constantly being killed, which brings them enough pressure.

"In the cave on the first floor, the passage is full of poisonous gas! It took me more than 30 mutated zombies to learn the information. Humans have started to attack us!" A corpse king with a scar on his forehead said first.

This information is extremely important. The corpse kings thought that the winter was coming. Whether it was on their own side or on the human side, the war would press the pause button. After all, no one could ignore the impact of low temperature, especially in the north. It is also common for the temperature to be more than ten degrees below zero. This is completely a natural refrigerator. Who is fine to move around in this situation?

But the reality slapped the zombie kings hard. Humans did attack, launched an attack in the severe cold weather, poured poisonous gas into the ground, and directly caused huge casualties to the zombies.

The corpse kings didn't want to sit still, so they stood up and said, "What else is there to say now? Wake up the dormant zombies, rush out, and kill all these poisonous human beings! Let them all die, and see if they dare Don't dare to think about us!"

"Yes, kill them all, it is best to severely damage the human army, and it will be easier for us to attack in the spring!"

"Killing one to warn others is the most suitable choice, offense is the best defense!"

"Maybe we can kill all these humans and force them to negotiate peace with us. At that time, won't our goal be successful?"

There are more than 50 zombie kings in the south. These big-headed zombies are all crowded in a small room, making this stone room particularly crowded. These corpse kings are talking about the next solution, and almost everyone They all advocate rushing out, and must kill all the humans above their heads to avoid causing too much damage.

However, at this time, a zombie king raised a question: "So, you say, how do you keep warm with so many zombies?"

As soon as this problem came out, all the corpse kings stopped their cheerful conversations. They had ignored one problem before, that is the threat of severe cold. As early as when it snowed for the first time around Yanjing, the corpse kings had no choice but to choose Reluctant to retreat, but even so, more than one million ordinary zombies were frozen to death in the snowy sky. It is easy to attack now, but after rushing out, what else can they do?

Low temperature is a dilemma that cannot be ignored, as long as it is a living thing, it will be affected by temperature, and zombies have all the weaknesses of human beings, and the heavy snow outside is not just beautiful, these snows can freeze zombies to death.

The outbreak of the zombie virus occurred in summer. All the dirty clothes on the zombies were summer clothes. Many of the zombies had their clothes scratched when they walked through the forest, so they were naked State, this kind of clothing wants to resist the cold, it is completely whimsical.

Therefore, as long as the zombies dare to leave the ground, it will not be humans who will kill them, but the ice and snow that can be seen everywhere!

For a while, the stone room became deserted. Because of the cold factor, the corpse kings could not send ordinary zombies to fight, because as long as they left the ground, the number of ordinary zombies would decrease, and the threat posed by humans would not disappear.

"These despicable and shameless human beings use such despicable means to attack when we have no thermal equipment. Shameless, shameless!" At this time, the corpse king began to curse. In his opinion, these human means It's really despicable, to attack in snowy weather, it almost killed him!

The rest of the corpse kings also condemned the despicable practices of human beings: "It's really shameless, why take advantage of people's danger? If you have the ability, go down to the hole in the ground and fight with real swords and guns, and see whose fist is hard. Then we will use zombies Heaps can kill them all!"

"That's right, these humans should wait until spring, when the temperature rises, and when we wake up the dormant zombies, and then surround Yanjing again, then they should attack! Really, they still pretend to be benevolent and righteous, what they did is not a little bit What does Benevolence look like?"

Many corpse kings began to condemn the actions of human beings, but they scolded happily, but they couldn't think of a way at all.

Scar Corpse King saw this scene, and said in his heart: "Could this group of guys be the reincarnation of Song Xianggong? The situation on the battlefield is changing rapidly. Who would want to fight with you in an upright manner? I wouldn't fight with a bunch of fools!" Be a teammate?"

In the end, it was the Scar Corpse King who stood up and said in a deep voice: "We have no way to ask how the enemy's tactics will develop. Now we can only rush out and fight with these people. Ordinary zombies will indeed be frozen to death outside, but mutant zombies are different. , the physical fitness of mutant zombies is far superior to that of ordinary zombies, as long as we activate the mutant zombies in our hands, they can also surprise the human army, and when the snow is falling, mutant zombies are easier to hide!"

Scar Zombie King proposed the only solution now, which is to send the most elite mutated zombies to fight, and there are still nearly 20,000 mutated zombies in the southern region. Once so many elites are dispatched, they will definitely win.

It's a pity that after this suggestion was put forward, it was immediately opposed by the other corpse kings. The corpse king is not a selfless guy. There are many, but mutated zombies are not so easy to get. The mutated zombies are the bodyguards of the corpse king. If the surprise attack fails, all of them will die. Wouldn't it mean that there will be no bodyguards around in the future?

Without ordinary zombies, you can go to the south to find them, but if all the mutated zombies are dead, the corpse king is really vulnerable. After thinking about it, the corpse kings are not willing to send mutant zombies to do such a dangerous action.

Seeing the faces of the crowd, Scar Corpse King couldn't help sneering: "Aren't you guys too short-sighted? Do you know what will happen if this goes on? Not only the zombies on the first floor will die, but the zombies on the second floor will die." The zombies will be killed sooner or later, and in the end, everyone will be trapped underground, and there will be planes in the sky watching all day long. Then, where can you run? You can’t figure it out at all, and you deserve to be where you are now!”

"It's easy for you to say, if all the bodyguards are dead, we will really be waiting to die, and we won't even have a chance to escape!"

Immediately, the corpse king began to refute.

The two sides argued endlessly, and finally each took a step back. Scar Corpse King's plan must be carried out, which is to send mutant zombies to attack humans, and the poisonous gas of humans cannot continue to enter the ground. However, all mutant zombies must not be sent out. This attack Humanity's plan can only dispatch five thousand mutated zombies, which is a quarter of the number!

The Scar Corpse King felt helpless about this, how could he win the final victory with these insects?

The earth-digging zombies re-digged the tunnel from the third floor, bypassed the poisonous first floor, and went straight to the ground target.

In the tunnel on the first floor, as long as there is a passage with poisonous gas, there is no living thing in it, and the dense poisonous gas is still spreading to the surroundings, and the passage between the first floor and the second floor has been blocked. To prevent poisonous gas from entering the second layer and causing greater casualties.

On the ground side, Qin Kewei stood on the bare ground, touching the yellow land with both hands, and was carefully sensing it. Suddenly, she noticed something unusual, so she quickly took out the walkie-talkie: "Report, the zombies are attacking, please pay attention Ground, beware of zombie attacks!"

When Cheng Ke received the news, his heart sank. The real test had come, so he quickly gave instructions: "Everyone is ready to fight, protect the technicians first, and then protect the gas delivery device. During this period, you are not allowed to take off the gas mask!"

In fact, the method of using poisonous gas to attack zombies hiding in the ground has long been proposed, but no one knew the condition of the ground before, so it has not been able to be used for a long time, because the effect cannot be estimated, and the production of these gases is also very resource-intensive. Cannot be used easily.

It wasn't until Shen Feng came out from the ground that he brought back enough information, and then the headquarters made a decision to use poison gas to attack and kill ordinary zombies first!