The red smoke is the umbrella of these Amida protozoa.

They can attack without fear under this smoke, or they can retreat back when the battle is not going well.

Anyway, it's impossible for human survivors to stay in this poisonous smoke for long.

This is also the reason why these servicemen are worried.

The gunfire in the distance gradually subsided, and the soldiers, who could not understand the specific situation, could only be anxious.

…………

"Rest in place!"

Unlike what they thought they were forced to flee, Leng Hao and the others retreated into the distance at this time, watching a large number of Armida protozoa clusters rumbling with explosions, struggling in the flames.

Right next to Leng Hao, all kinds of corresponding materials and equipment were unpacking them.

For this day, people have been preparing for a long time, how can they give up.

…………

"Those people, it seems, are raising more hot air balloons? Where did they get so many air forces? ”

"What's the use of a hot air balloon? This altitude may not be infected, but hot air balloons are unlikely to solve these monsters. ”

The soldiers looked anxiously at the colorful hot air balloons in the distance.

This team behaves a little differently than a normal team of survivors.

"Let's hope they're okay......"

Just as these soldiers were silently praying, suddenly, there was another wave in the chemical plant in the distance.

…………

It has to be said that there are quite a few Amida protozoa.

The chemical plant, which was originally igniting a fire and leaking poisonous gases in the midst of various explosions, gradually subsided under the trampling of these monsters.

However, their catastrophe has only just begun.

"Let's go!"

With Leng Hao's order, the hot air balloon driven by Xin Xiaoshi and the others took the lead in advancing towards the chemical plant from a high altitude.

And the shells fired by the modified mortars also made a strange whistling sound.

"Open the tank of liquid nitrogen and throw them all down!"

As soon as they reached the plant, people grabbed tin cans and threw them into the ground.

While these iron cans smashed monsters to death, there was also a trace of cold air wafting around.

With the rain bombs fired by the mortars, the temperature of the entire chemical plant began to drop somewhat strangely, and even hoarfrost appeared on some iron parts.

"Hey, hey, hey, aa!"

Tang Yida, who was wearing chemical protection suits, felt the gradually decreasing temperature one by one at this time, and let out a hearty laugh.

Fighting in a chemical protective suit in the summer is a bit too hot.

But now, you'll soon get a taste of what it means to be cool.

The chemical plant is actually not small, but after all, it is a military supporting plant established at the beginning, located in the shadow of those large mountain ranges in Tianbi Mountain, forming a groove.

In this kind of place, the temperature is not high, and with the help of a large amount of liquid nitrogen and various chemicals, the temperature of the entire chemical plant will soon drop sharply.

Those soldiers in the distance couldn't understand this wave of operations at all, and the liquid nitrogen dropped by a large number of hot air balloons couldn't kill the enemy at all, why were these people so happy?

Last winter, were those Amida protozoa okay?

"Now that the temperature is below 5 degrees, the poison has begun to die."

After getting Jiang Xiaoyu's affirmative answer, Tang Yida, who had been waiting for a long time, once again launched an attack on the chemical plant.

This time it was a different attack than this morning.

Behind the soldiers in chemical protective suits, one by one modified armored off-road vehicles slowly moved forward.

The soldiers in the car wearing gas masks shot out flames from their rifles.

"All, attack! Ahh ”

Leng Hao's voice was tinged with a hint of coldness, but his high tone revealed his joy.

When the people attacked the chemical plant again, the fierce fire hit many of the Amida protozoa and killed them one after another.

Unwilling to accept defeat, Lord Amida finally began to bring numerous sulfuric acid cannons into the war.

These, sulfuric acid cannons do not shoot at people at all, but just shoot water bombs of different colors into the sky.

After devouring some of the raw materials of the chemical plant, this batch of sulfuric acid cannons can create itself full of infectious red smoke!

"Sure enough, these monsters are not single-celled animals, they can already make their own red smoke."

The words rang out in unison in two places.

The hearts of those soldiers trapped in Tianbi Mountain were filled with despair.

And Leng Hao's heart was full of joy.

The sweat and diligence of the people will not be in vain, and now, the abacus expected by these Amida protozoa will be in vain.

At the front of the attacking crowd, the doctors of the medical team were checking the level of insect poison in the air.

The continuous release of liquid nitrogen has also kept the temperature at a very low level.

In this case, the red smoke that had left so many survivor teams and even annihilated the entire army could not even bubble out.

And the thousands of sulfuric acid cannons that were used as killer by Lord Amida were constantly spraying insect poison that produced red smoke. The energy in the body is consumed, and in real battles, it is not able to provide strong long-range fire cover.

The soldiers wearing chemical protective suits are the most elite team members under Leng Hao's command.

Armed with all kinds of equipment, they quickly advanced and killed many of the Amida protozoa on the battlefield.

"Boom!"

An armored off-road vehicle roared and knocked a steelclad soldier to the ground, and was the first to rush out of the range of the chemical plant.

Just behind it, rows of soldiers like white sprays emerged from all over the ruined chemical plant, killing all the Amida protozoa who had no time to escape.

And behind them, reserve fighters in gas masks also followed in groups.

The current rat expedition has completely cracked the fear of red smoke, and as long as it is maintained in this low temperature, it will not be harmful at all.

"They, they, actually penetrated the chemical plant?"

Looking at the white spray in the distance, several soldiers couldn't help but widen their eyes.

Hours have passed since these people fought the Armida protozoa.

The frightening red smoke didn't seem to have had any effect on the survivors.

"They really seem to have a way to restrain this red smoke, do they rely on low temperatures?"

A soldier looked at the hot air balloon that was still throwing liquid nitrogen, and muttered something in a low voice.

"We don't need to worry about those things. Quick, find a way to contact them! These people will be our true hope! ”

Looking at the white waves that were emerging more and more in the distance, and looking at the human army that was already clearly visible, this group of soldiers could no longer suppress the excitement in their hearts.

"Hey, hello compatriots outside, my department is a garrison company of the Tianbi Mountain Defense Area under the Southwest Military Region, please, talk to you, ask to talk to you!"

For the first time in a long time, these servicemen trapped here finally see real hope.