If there's a worse situation than being caught up by zombies, it's being caught up by a zombie army with all the troops.

Fortunately, the worst did not happen. Although the climber attacks in the tunnel in a three-dimensional fashion, it is far less threatening for an army with long-range means than rushing at a group of defenders.

Because of Aki Yu's orders, almost all the soldiers have a good shooting range, and when the last three squads have no scruples about pouring out all the bullets in their guns, as long as they retreat with all their might, the second group of squads ten meters away can make a seamless attack connection.

Climbers are no different from normal zombies, except for their three-dimensional movement ability and slightly faster movement speed. Under intensive and constant fire, it was simply impossible to pose much of a threat to a well-trained soldier.

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Several climbers who were about to fall overhead were killed by Aki Feather. Because of the existence of Qiu Yu, this number of climbers has changed from not much of a threat to no threat at all.

When all the climbers were cleared, only seven units, or twenty-one squads, had finished firing a cartridge. Qiu Yu would not think that it was his luck, the number of zombies that was far less than expected was mostly due to the 21st Armored Squadron.

"Stay in formation and keep going."

The troops here were originally used to protect the farmland area, not to attract zombies, so every soldier's firearm was equipped with a silencer. But in an environment like a tunnel, even with a muffler installed, gunfire can be heard from a distance of 100 meters. Coupled with the use of so many guns together and the roar of zombies, it is enough to attract zombies two or three kilometers away. Therefore, even if it is inevitable to face the next wave of zombies, it cannot be in this battlefield that has already attracted the attention of the corpse group.

After the troops left, Qiu Yu scanned the crawling zombies with perceptual spread at close range. The information he received made him feel like he was lucky. In addition to basic instincts, this zombie also has beast-level intelligence, and with a powerful sense of smell, hearing, vision, and heat perception, it is simply an all-powerful biological tracker. In addition, the structure of its vocal cords can emit strong infrasound waves, and as long as it screams, it can attract a large range of zombies.

Fortunately, the 21st Squadron led away a lot of zombies in advance, and fortunately they killed it in the first place, otherwise the results were really not optimistic.

Most of the zombies that were able to chase after them so quickly were caused by it. But on the other hand, if there is only one zombie in the tunnel, maybe the zombies behind will return to a wandering state, and they won't be able to walk a few kilometers until dawn.

Shaking his head to dispel this thought of pinning his hopes on the other party, Qiu Yu quickly disappeared into the darkness. But he did not rush to chase the troops, but left a light source on this battlefield and observed it from afar.

Soon after, a small group of zombies with burn marks appeared. Two hundred meters away, Aki Yu fired with a rifle. Not the head, but the feet.

The moment he was attacked, the arsonist set himself on fire, but after a few turns and did not find the attacker, he immediately extinguished the flames. Eventually, a group of charred zombies were piled up in the tunnel like firewood waiting to be lit.

After a few more boring minutes of waiting, the main force of the real corpse group arrived. Instead of appearing alone, tall defenders and saboteurs are mixed and surging forward in the ordinary zombie horde.

If the location of the arsonist can be reasonably distributed, it is estimated that all the zombies can be burned. It's a pity that the arsonist will spontaneously combust as soon as he finds a human, and it can only be used as a one-time killer feature.

In order to prevent himself from playing with fire**, when the corpses had just reached the position of the arsonist, Qiu Yu rushed up. In a roar of corpses comparable to a sonic attack, the entire tunnel suddenly lit up, and then the intense scorching stench and smoke almost suffocated Qiu Yu.

The hordes of corpses in agony roared forward in the nearly 1,000-degree heat, but most of them could not take a few steps before they would carbonize and fall. Even defenders with strong physical defenses do not have effective means of countering high temperatures. The bones of his body crackled and exploded like firecrackers, and they burst in the flames little by little.

A saboteur jumped directly over the flames with great strength, but only a few sweeps from the flames had already damaged his tight muscle structure, and he fell directly to the ground when he landed. Then, he was greeted by Akiha's precise headshot attack.

Probably burned against each other, or burned before, or maybe there was not enough oxygen in the tunnel, and in the end, the arsonist's burning lasted only half a minute, but it was this half minute that thousands of zombies, including more than a dozen defenders and destroyers, were charred. Black and white ashes float through the tunnel.

The scorching smell obscures the sense of smell, the ashes obscure the vision, and the occasional popping sound obscures the sense of hearing. It's a dark place for both humans and zombies. But for Qiu Yu, who has a perceptual spread, this is the perfect home field to destroy more zombies.

Putting down the ordinary rifle and the laser rifle, he only took two military daggers and rushed into the crowd of zombies shrouded in smoke and dust.

Goals, only saboteurs and defenders. The former is nothing more than several layers of cowhide stacked on top of each other, and with a little force, it can be stabbed directly into the brain from the chin, and then twisted with a single force, it can be completely killed. The defenders were a little more troublesome, with a height of nearly three meters making it difficult for Qiu Yu to reach his head, and even places like his neck were covered by a sturdy exoskeleton. With a little more effort, he jumped high and stabbed through his eye sockets or ear canals.

As a result of not being able to kill instantly, each defender will struggle after being injured, allowing Qiu Yu to spend more effort to dodge. Two minutes later, Qiu Yu retreated with a bloody body covered in thick ashes.

The mutant zombies within the perception range have all been resolved, regardless of whether there are still in the future, there is no time to think about it for the time being. The rest is left to regular gunfights.

Tear off the epaulettes and take them off to weigh at least two kilograms

of clothes, grab a laser rifle and quickly chase the troops ahead.

Based on the speed at which they had been going, Qiu Yu estimated that they had already walked at least two kilometers. But after a few hundred meters, they ran into the troops that had stopped their advance.

It's still the same formation, but the front and back teams have been swapped.

"What did you do? Don't give a clear order, these fools have to come back to you......" Harperm, who had been in the queue, retreated to the rear, and began to complain desperately when he saw Qiu Yu, but when he saw Qiu Yu's black and white primitive human shape, he suddenly stepped back in fright, "He has become a zombie, he has become a zombie." ”

"What's crazy, if you mess with the army's heart, be careful that I make you a zombie." Qiu Yu hurriedly spoke. He was really afraid that these soldiers would be frightened by Harperm and would not be able to hold it, so they shot themselves together and beat themselves into a sieve.

But soon, Qiu Yu found himself overthinking. Neither before nor after Harperm screamed, not a single soldier turned his gun to him. I don't know if they have long since discovered that they are alive, or if they have absolute confidence in themselves.

"Be ready for battle."

Qiu Yu received a new rifle and turned to look at the way he came.

Qiu Yu knew exactly where the bombs were buried in this tunnel, and the ultimate means was to give up the follow-up plan when it was really dangerous, detonate some of the bombs himself to block the zombies, and then retreat to the shelter at full speed.

Fortunately, there is no need to resort to last resort for the time being. With the vast majority of mutated zombies already killed, the ordinary zombies in the tunnel are not a threat at all. The occasional few defenders and saboteurs who were belated were easily dealt with with Qiu Yu's accurate fire and the use of laser rifles.

Even the defender, in the single-shot mode of the laser rifle, is still a one-shot takedown. This further strengthened Akiha's determination to acquire more weapons of the future.

Half an hour later, there were no more zombies standing in the tunnel. At this time, the battle and retreat reached the position of seven to eight kilometers of the subway tunnel. Just on the side, Qiu Yu found the first safe house.

Although the other soldiers were still on alert, Qiu Yu was sure that the possibility of a large wave of zombies attacking was very small. The emergence of a safe house at this time is not even the icing on the cake. At most, it's a house where you can rest. Of course, defensive aside, there are advantages over ordinary evacuation rooms. That is, there is still electricity here, which can be used up to spare batteries for the laser rifle to rush down.

As he approached the safe house, after the perception spread farther inside, Qiu Yu had a small surprise.

The safe house wasn't just an empty room, it also had a few mattresses on the floor, a few large buckets of water, and a large bag of compressed food of future quality. Compared to an ordinary futuristic house, this is more like a futuristic evacuation room in the true sense of the word.

"Let's rest here for a while."

Aki Yu opened the door to the safe house. To his surprise, Harperm was the first to squeeze into the room without objection. Next, the soldiers began to follow the performance of the battle just now, letting the most contributing squads into the safe house, and the others into the normal shelter next to the safe house.

Qiu Yu was vaguely aware of something, and grabbed a bunk that occupied a floor, yawning, and Harperm, who was in a relaxed state, asked, "Do you think this room is any different from the one next to it?" ”

"What do you mean? It's inherently different. Next to it are ordinary ancient buildings made of steel and concrete, but here are high-strength memory crystals. ”

Qiu Yu said secretly, "Is there a lot of room built with memory crystals?" ”

Harperm thought for a moment, "Well, it should be a lot, but now it seems to be hidden for some reason. ”

"How is it hidden? Where is it hidden? Qiu Yu unconsciously raised his voice.

Harperm spread his hands, "Who knows, we still know too little about the world, and there are so many unknowns. ”

"And what else do you know?"

Harperm shook his head, "I can't remember, it seems that some force has controlled our memories." However, I don't think it should be a good thing to remember. ”

Qiu Yu felt a little messy. What exactly do regulators want to do? Obviously erased other people's memories, but let others know that their memories were erased.

Grabbed Harperm, who was about to fall asleep, and handed him the laser rifle in front of him, "Do you know this thing?" ”

Harperm opened his eyes and looked, "Arrow frogs, the cheap laser rifles that civilians like the most." ”

Qiu Yu pressed his temples with a headache and asked, "When did you recognize this as a laser rifle?" ”

"When the position of captain is handed over to you."

Qiu Yu threw away Harperm, and casually beckoned a soldier over, pointing to the laser rifle and asking, "Do you know what kind of gun this is?" ”

"K309D1 laser rifle, commonly known as Arrow Frog." The soldier replied aloud.

"When did you find my gun?"

"If you saw it with your own eyes, it was in the battle you fought against the zombies just now."

"So, you knew it before you saw it with your own eyes?"

"Yes, our captain was involved in your inauguration. Because the weapons we use are very backward, we are particularly concerned about the arrow frog on your body, and you mentioned it to us when you came back. ”

Qiu Yu suddenly found that he was a little careless in this matter. I'm used to being able to spot it through perceptual sprawl every time I unlock it. Therefore, I always thought that this captain was not authentic enough, so I couldn't unlock it. It now appears that unlocking something doesn't trigger a change in the law at all, for example, a simple memory that already exists.

What this group leader unlocks is the knowledge of the future that the soldiers know and synchronize with their current knowledge.