When Han Feng completed the Laohuzui avionics hub, the gunsmoke from the copper mine on the ground of the copper mine, twenty kilometers southwest of the copper city, had gradually dissipated.

The zombies that originally occupied the national copper and copper mine were completely exterminated, and in the battle, Li Chao also personally took action to destroy a bronze-level mutant beast that was attracted by the sound of the battle in the national copper and copper mine and was involved in the battle.

Now the soldiers of the First Legion, wearing hazmat suits, are carefully stuffing smoke ejectors into the air delivery channels in the copper mines.

And this smoke jet is filled with the zombie repellent potion that has been atomized.

The R&D Department of the Apocalypse Organization deliberately came up with this method because it was considered that within the scope of the mine, it was impossible to use the explosion method to spread the zombie repellent potion.

The First Legionnaire who stayed in the air delivery channel sprayed the zombie repellent potion into the air delivery channel.

After about fifteen minutes, the entrance to the copper mine, which had been silent, suddenly boiled like boiling oil that had been poured cold water.

The zombies who had been hiding in the underground pit couldn't wait to get out of their hiding place.

"Hit me hard!" With Li Chao's order.

The soldiers of the First Legion, who had already set up several cross-fire points at the entrance to the pit of the National Copper and Copper Mine, pressed the triggers of the weapons in their hands one after another.

For a while, gunfire rang out near the pit, and countless gunpowder smoke rose into the air.

The zombies who had just rushed out of the pit were bloodied by the dense crossfire points, and they fell to the ground after not advancing a few steps.

In just a few minutes, the corpses of zombies pouring out of the pit had blocked the entrance to the mine.

Until a swift zombie, at a speed that is incomprehensible to ordinary people, rushed out of the entrance of the mine and rushed directly to the crossfire point of the First Legion.

"Leave this mutant zombie to me! The rest of the people continue to attack the normal zombies! Don't stop! When Li Chao saw the mutant zombie appear, he immediately faced the zombie with a blue plasma shield.

And the other soldiers of the First Legion, after hearing Li Chao's order, withstood the pressure and continued to shoot deadly bullets at the ordinary zombies that appeared in the pit.

Just when the First Army was fighting fiercely with zombies at the entrance of the pit of the National Copper and Copper Mine, the Copper Capital Ore Refinery in charge of the Second and Third Army Corps was already calm.

Su Ningxue and Yang Zonghao cooperated with each other, and after spraying the zombie repellent medicine inside the copper capital ore refinery, countless ordinary zombies were forced out of the hiding place.

The Second and Third Legions, which had a relatively easy task, managed to capture the entire ore refinery with almost no losses.

However, rushing to Yunxi County, the copper city, the direct legion of Yunxi Lead and Zinc Mining Company was not as lucky as the three legions in charge of Tongdu.

They encountered strong sniping in Yunxi County.

The location of Yunxi Lead and Zinc Mining Company is not in the county seat of Yunxi County, but in the canyon near Yunxi County.

The surrounding lush jungle almost tightly hides the entire Yunxi Lead and Zinc Mining Company in the canyon.

However, it was this kind of environment that gave Su Chenxi, the commander of the directly subordinate legion, a headache.

Along the way, the direct legion has been attacked by several bronze-level mutant beasts.

And the mutant beast is not like a zombie, it will have a disgust for the zombie repellent potion, and once the human army encounters a mutant beast at this stage, it can only fight with a real sword.

Although this time, during the journey to Yunxi Lead and Zinc Mining Company, the direct legion eliminated two bronze-level mutant beasts and drove away one bronze-level mutant beast, but the truth of killing one thousand enemies and self-inflicting eight hundred was also confirmed in their bodies.

The attack of the three bronze-level mutant beasts reduced the direct legion by almost twenty percent.

Several tanks and armored vehicles were discarded by the mutant beasts and lost their power, so they had to be discarded on the side of the road.

When the regiment directly under the Apocalypse Organization walked through the lush jungle, and when the vanguard troops arrived at the Yunxi Lead and Zinc Mining Company, the walkie-talkie hanging on Su Chenxi's side sounded again.

"I'm the No. 2 car here, and the Yunxi Lead-Zinc Mining Company is in front of us, but the No. 1 car, which is at the forefront, has been attacked by mutant beasts again, and the mutant beasts that attacked this time are much stronger than the previous ones."

"If that mutant beast doesn't pursue, then don't keep coming close for the time being, and wait for follow-up support." After learning from the walkie-talkie that the troops in front encountered the attack of the mutant beast again, Su Chenxi hurriedly issued an order to stay and wait for help.

According to the pre-set contingency plan, if each legion is attacked by a mutant beast, then the best way to deal with it is for the legion leader, who is an evolutionary, to take action himself.

Relying on the strength of ordinary soldiers alone, if you want to destroy a bronze-level mutant beast, you don't know how many lives you need to fill, so the corresponding main combat force is still evolutionaries and super soldiers.

However, when Su Chenxi rushed to the front of the troops, his brows furrowed involuntarily.

The No. 2 car that had just reported the encounter with the mutant beast, and the No. 1 car that was walking in the front were all parked at the gate of the Yunxi Lead and Zinc Mining Company.

The two well-defended Type 99A main battle tanks were completely lying on their stomachs at this time, and they stayed where they were without any reaction.

The dozens of fist-sized round holes on the side of the body completely penetrated the thick body of the tank, and from Su Chenxi's angle, he could even see through these round holes to see the situation on the other side of the tank.

But what worries him the most is the huge figure that constantly patrols next to the tank.

The Type 99A main battle tank has a body height of 2.37 meters, and the size of this huge mutant beast is as tall as two tanks stacked on top of each other.

The barrel of the tank was raised high just below its chest.

But the most shocking thing is the spines that extend from the back to the tail of the mutant creature, these dense spines, each as thick as an adult's fist, and the length is about five meters.

The first time Su Chenxi saw this creature, he understood what kind of creature this mutant beast was mutated from, and the predecessor of this mutant beast was definitely a porcupine.

And when he saw the thorns on the back of the mutant porcupine and on the tail, he also understood how the dozens of fist-sized round holes on the body of the 99A main battle tank came from.

The power of these thorns is absolutely amazing.

The armor of the Type 99A main battle tank can completely defend against most rocket attacks, but in the face of the thorn attack on the back of the mutant porcupine, it was actually stabbed in the middle.