End of the World: My Items Can Be Upgraded Infinitely

Hearing the sound of several gunshots coming from the darkness in the corridor of the city wall, Lin Feng and Shen Jie could not help but speed up their pace.

They ran quickly towards the source of the sound.

While running, Lin Feng activated his telepathic skill to detect the hidden Zerg in the target direction.

Soon, in a wormhole 800 meters away from the two of them, a second-level awakener and several signal light spots of the first-level late-stage perfect awakeners appeared.

Unlike the Zerg, due to the difference in size, although the human awakeners have the same light spot brightness as the Zerg of the same level, the size of the light source displayed is only one-third of that of the Zerg, or even smaller.

This is also the main basis for Lin Feng to distinguish between awakeners and Zerg swarms when analyzing the results of the exploration.

Presumably, these awakeners who went deep into the wormhole were the elite team led by Qin Hu.

As Lin Feng and the others got closer and closer to the place where the battle took place, telepathy detected that several second-level Zerg appeared deeper in the wormhole and were fighting fiercely with Qin Hu and others.

Fully armed, Lin Feng raised the electromagnetic cannon in his hand and asked Shen Jie, who had entered the black warrior state, to move back first and wait for an opportunity.

His Wing Tiger frenzy state can only last about five minutes, and must be used at critical moments. Moreover, Shen Jie's melee ability is stronger than his own, especially inside the wormhole. If too many armor-piercing shells and magnetic storm shells are fired, it is easy to cause the cave to collapse and bury everyone.

Seeing that the wormhole mouth from which the sound came had appeared not far away, Lin Feng whispered to remind:

"Wait, you will be responsible for the left and right alerts, take care of the rear, and leave the Zerg attacking from the front to me."

Shen Jie nodded. In the black warrior form, the two-meter-long black-gray arm blade was shining with cold light. After Zhang Liying's transformation, the black armor that emerged on his body could be combined with the red black armor, which was equivalent to double the armor.

It was enough to resist the tiger-back worm's powerful attack.

It was equivalent to having an extra life.

Ten seconds later, the two successfully passed through the obstacle-filled defense corridor and came to the bottom of a main fort.

At the bottom of the main fort, the warehouse that was originally used to store weapons and supplies was hollowed out by the Zerg, and a deep pit with a diameter of 20 meters appeared in front of the two.

Fortunately, the hole was slanted downward, so there was no need to jump straight into it. The two looked at each other, and then walked into the bottomless hole one after the other.

The whole wormhole was filled with that familiar strange smell, which was stronger than the one in the defense corridor. Fortunately, the underground insect nest dug by the red beetle had a very complete ventilation system, which could access the surface air and circulate into the cave to ensure that there was still oxygen a hundred meters underground.

As a carbon-based flesh and blood life, the Zerg also needs redox reactions to decompose the nutrients in the body as the basis for the continuation of life activities.

After the transformation of the biological factory, the low-level Zerg has adapted to absorb oxygen as a way of survival.

Therefore, the ventilation of the insect nest is extremely important.

And Lin Feng and the others can also rely on the powerful sensory organs of the second-level awakeners to detect the direction of the weak airflow, so that they will not get lost after going deep into the bottom of the insect nest.

Unfortunately, Lin Feng's telepathic skills could not detect the structure of dead objects, but could only show the location of living things.

Fortunately, the continuous explosions from the depths of the cave allowed the two to successfully find Qin Hu and others.

As the two sides approached, Lin Feng also unexpectedly heard some strange sounds, like the machinery in the factory, sizzling and echoing in the cave.

Perhaps it was the electromagnetic pulse cannon of the pulse war scorpion, which was reducing the power level and attacking Qin Hu and others.

After walking more than 200 meters in the dim wormhole, the two finally saw the light coming from afar.

Qin Hu and his men were wearing Zerg exoskeleton armor similar to the red black armor, and they were holding a heavy sword-like melee weapon in their hands.

But the black and yellow weapons made a high-frequency buzzing vibration sound. When they were flexibly wielded in the hands of the awakened, splitting the attacking second-level tiger spine worm, they directly rubbed out the sizzling sound that Lin Feng heard.

The giant sword collided with the giant jaws of the tiger spine worm, splashing a dazzling spark.

With the help of the searchlights they were equipped with, in the dim light, Lin Feng saw that those weapons similar to heavy swords turned out to be a two-meter-long electric chain saw!

The saw teeth began to cut the giant jaws of the tiger spine worm with the help of the crazy rotating motor.

Especially when the awakened people raised the chain saw sword to block the tiger spine worm from raising its upper jaw to bite down, the rotating saw teeth could directly cut off the giant jaw in just two or three seconds.

Such a powerful performance made Lin Feng's eyes shine and he couldn't take his eyes off.

Soon, Lin Feng walked behind the group of awakened people.

He raised his gun and aimed at a level 27 tiger spine worm in the late stage of the second stage that was about to pounce in front of everyone.

As he pulled the trigger, under the headshot lock of the Death Eye attribute, the damage was as high as 900 points of armor-piercing bullets, which directly hit the tiger spine worm's torso behind the jaws and then exploded in its body.

The entire second-stage worm body exploded!

The ten-centimeter-thick armor was shattered into pieces, and the broken limbs flew everywhere.

But because of this, the power of the armor-piercing bombs was absorbed by the tiger spine worm, and it did not have much impact on the nearby cave.

With the death of the only second-stage late-stage tiger spine worm, the Zerg's offensive was gradually suppressed, and the elite team led by Qin Hu fought and retreated.

And he himself, with the chainsaw sword in his hand, split a second-stage early-stage tiger spine worm from its mouth, turned around and walked to Lin Feng, shouting:

"What are you doing here?"

Because of the chainsword's attack and the cutting noise, it was deafening and difficult to hear clearly.

After Lin Feng barely understood, he replied loudly:

"This could be a trap!"

"The new second-order Zerg will ambush you!"

Qin Hu shook his head. At this moment, the battle ahead was coming to an end. Many late-stage first-order awakeners successfully killed the second-order Zerg for the first time through the powerful chain swords in their hands.

You only need to return to the second line of defense to enter the second level of deep awakening and become another second level awakener.

Coupled with the genetic modification surgery of the institute, genetic warriors comparable to the second-level mid-level strength will all appear on the scene.

During this period, even Shen Jie severely injured a tiger spine insect with the shotgun in his hand, and then used the two-meter-long arm blade to kill it and gain upgrade energy.

As the war ended, everyone retreated to the outer entrance of the cave to rest temporarily.

Lin Feng and Qin Hu continued to communicate.

Through identification, Qin Hu has entered level 22 at this moment, indicating that he has killed at least five or more second-level Zerg species, but he has not entered the state of genetic assimilation. It should be the unusual melee weapon in his hand. .

Qin Hu took a deep breath and said excitedly:

"This is the first time that we humans have defeated a Zerg attack underground in a wormhole! But what we didn't expect is that the scale of the underground wormhole is larger than we imagined!"

Pointing to the cave where everyone just exited:

"According to the research institute's information, there should be a level three insect nest there, covering about three to four square kilometers, which is equivalent to a commercial district."

"There are thousands of first-order black spine worms and a dozen second-order tiger spine worms living inside. After we entered, we drove away the lower-level worms, but were chased and intercepted by the tiger spine worms. Finally, we retreated into the insect tunnel while fighting."

"Fortunately, you took action, otherwise there would have been attrition against that late second-order tiger spine insect."

Lin Feng shrugged. To be honest, after completing the upgrade of the lv2 electromagnetic gun and himself, he was no longer willing to take action again. No matter how many tiger spine insects he killed, he would not gain much.

And being in an underground cave, you can't bring back too many biological materials for fusion and upgrade.

Unless you encounter the new second-level Zerg, Pulse War Scorpion, Tank Flame Armor, etc.

Facing the second-level tiger spine insect, Lin Feng was more willing to give up the opportunity to upgrade to Shen Jie or other awakened ones.

After all, the second-level Zerg is quite rare, and such close combat experience is equally valuable.

It allows the awakened ones to grow up quickly.

After hearing Qin Hu's introduction, Lin Feng asked:

"So you still want to stay in the wormhole and fight in order to complete the mission assigned by the institute?"

"Those new second-level zerg species are not that easy to deal with. Compared with tiger spine worms, they are more professional and specialized. Just like ordinary soldiers, they are the same as snipers and rocket soldiers. They are extremely difficult to deal with."

Qin Hu nodded, took off his mask, lit a cigarette for himself, and took a deep breath:

"Yes, but we have this!"

He raised the chain sword in his hand, exhaled white smoke and continued:

"It is our mission and responsibility to understand and obtain information about the new second-order Zerg, hand it over to the research institute, and then study how to deal with them."

"And the victory of the war also requires this information. The capital sent several teams of genetic warriors, but because of the large number of queens they faced and the complicated structure of the wormhole crypt, no one has survived yet..."

"There is only one Queen Mother in Haicheng, and the number of new second-order Zerg species hatched from it is also small. This is one of the few perfect opportunities we have."

"What's more, this time we come down and gain more than just these."

Qin Hu turned his head and glanced at the team member sitting behind him, the deputy captain of the team, a level 19 awakener.

And he was also a genetic warrior. Lin Feng and Shen Jie could smell the strange smell emanating from his body, as well as the flash of madness in his eyes.

The vice-captain interjected:

"Hello, Sergeant Lin, I've heard of you for a long time."

"My name is Chen Shu, the former commander of the 98th Company, and currently serving as Colonel Qin's deputy."

Chen Shu took out a bag of things from his backpack, showed it to Lin Feng, and then carefully stuffed it back.

It was a medical and biochemical PE sealed bag with a yellow skull warning sign printed on the bag. It contains some substances that emit a faint green fluorescence, similar to the fungus slime mold that grows on rotten wood.

Chen Shu pushed it up out of habit. The non-existent glasses on his face were probably a top student in the past. If it weren't for the alien Zerg invasion, there would be no need for him to live and die in the Zerg hinterland.

After showing it to everyone, Chen Shu introduced:

"This is some kind of glowing slime mold we found in the insect nest. It seems to be able to produce nutrients. I saw a red beetle sucking it from a distance."

"Bring it back for research, and you may be able to uncover the basic life cycle of the Zerg. If you can find a way to destroy this luminous substance or its proliferation environment, you can cut off the foundation of the Zerg's existence like a fire under the cauldron."

"Destroying their staple food for survival."

"This is more meaningful than victory on the frontal battlefield."

Lin Feng nodded, this is also an idea.

Qin Hu crushed out most of the cigarette and said with a smile:

"It's different to be educated. We rough guys can't compare."

Then he looked at Lin Feng with a solemn expression:

"Do you want to go together? Or do you want to leave early? But with you joining us and using long-range attacks, I believe we can easily win against the new second-order Zerg..."

Lin Feng's eyes were always staring at the chain sword held tightly in Qin Hu's hand, and he nodded and said:

"No problem, this is one of the reasons why I came here."

"This weapon has some tricks. Are the serrations on it made from the giant jaws of tiger spine insects?"

Qin Hu showed a smile. He knew very well that Lin Feng was greedy for this weapon. He stood up and waved the chain saw while solemnly introducing:

"This is called the Tiger Tooth Chain Sword. It is the latest individual weapon developed by the Weapons Research Institute. The sharp saw teeth are made from the giant jaws of tiger spine insects, and the blade is made of a whole body of tungsten alloy. It is two meters and three meters long. The chain saw is 1.8 meters wide, 35 centimeters wide, and weighs a terrifying 800 kilograms. Without the late-stage first-order perfection, which is close to ten tons of physical strength, it would be impossible to wield it for a long time. "

"Of course, this chainsword is just the right weight in your hands, and it's even a little lighter."

"Now the institute is developing weapons that are more suitable for second-level awakeners."

Qin Hu then took out three fist-sized pieces of tiger insect serrations from the backpack behind him, and replaced the excessively worn serrations on the chain sword.

"Yes, this is a modular design. Each saw tooth can be replaced individually to maintain combat effectiveness. The thirty kilograms of fuel under the backpack is enough to last it for more than five hours..."

"With it, any second-order Zerg that gets close will die from the tiger's teeth!"

Lin Feng nodded, agreeing very much.

The giant jaw of the tiger spine insect is the hardest organ among all the second-order insects. After being made into serrated teeth, it does have the ability to break through all defenses.

Especially under the gravity of the Tiger Tooth Chainsword, the strength bonus of the Awakened One, and the repeated cutting of the saw teeth, even the Flying Tiger Armor would be unable to withstand it for long.

It's a pity that to deal with the second-order tiger spine insect, the serrations need to be replaced in time. During the fierce close combat, there is no time to replace them.

If it is used as an item, bound into equipment, and subsequently upgraded, this flaw may be solved.

Lin Feng had already made some plans after seeing the powerful power of the tiger-tooth chain sword.

And with Qin Hu's complete display, the identification results also appeared in front of his eyes:

"Tiger Tooth Chain Sword lv24/29, Orange Quality"

"Upgrade point 3/10, durability: 10/10, single saw damage 400"

"Note: After starting the chain saw, the damage per second is 2000, causing effective damage. The durability is reduced by one point every ten seconds. The damage is reduced as the durability is reduced. Replacing new saw teeth can restore the durability."

"Evaluation: This is a primitive and terrifying melee weapon, but for the more brutal and ruthless Zerg, the effect is surprisingly good. It was originally the strongest shield in the world, and it can naturally become the sharpest spear. Be careful. Use it with caution and pay attention to the durability.”

After reading the appraisal evaluation given by the system, Lin Feng called out, "Hey guys, the wear and tear is decreasing faster than driving without releasing the handbrake."

But if you think about it carefully, according to the reminder in the comments, it can be used normally for about fifty seconds at full state, and the damage per second is upwards of one thousand. During the battle, on average, a tiger can be killed in two seconds. Spinal worm…

To put it this way, a tiger-tooth chain sword can kill at least twenty tiger spine worms before it is close to being scrapped.

In fact, it’s not missed.

Maximize the utilization value of the tiger spine insect's giant jaws.

The wielder may be exhausted before even twenty tiger spine worms are killed.

Qin Hu, who was in front of him, seemed to see that Lin Feng was moved, so he picked up the tiger-tooth chain sword in the hands of the lieutenant and handed it over:

"Try it, you'll definitely like it."

Lin Feng narrowed his eyes, but did not reach out:

"What price?"

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