The evacuation shelter is responsible for the supply of electricity in the subway. But at this moment of self-power generation, one can't afford to waste, and the other can't attract zombies with lights, so the entire subway tunnel is pitch black.

Although almost every soldier was equipped with lighting, given that it was unknown when supplies would be available in the future, only one or two people per squad were allowed to use them at the order of the squad leader.

The troops who had previously been responsible for arranging wires in the subway were scattered in front of the wires, shouting loudly to warn passers-by to bow their heads.

A reconnaissance team was divided into three waves and conducted echelon reconnaissance to the front of the tunnel.

The last team will be equipped with some detection equipment at every distance to control the movement of zombies that appear later.

This is the army of this world. There is no need for people to worry about it at all, as long as there is a general direction of orders, everything will work spontaneously.

As the last group to leave, Qiu Yu watched the 21st Squadron leave.

Several soldiers who had been following him silently saluted the convoy, and even Harperm had a decent hammer to the chest. As long as they are not fools, who does not know the meaning of this move?

"Let's go."

Qiu Yu was unwilling to immerse himself too deeply in this kind of emotion that would affect his decision, and took the lead and walked off the subway. Several soldiers quickly began to eliminate the smell and cover the subway entrance with various things.

As soon as all the men entered the subway tunnel, the artillery fire of the 21st Squadron rang out, and then quickly moved away.

The zombies came a lot faster than expected, but they didn't cause much panic among the soldiers here. Everyone just silently sped up their pace.

After a few minutes, the sound outside had completely disappeared, and only the sound of intertwining footsteps could be heard in the dark subway tunnel. Not long after, a team leader reported to Qiu Yu that the zombie had appeared near the subway entrance, and then in less than half a minute, the report was updated to say that the zombie had entered the tunnel.

Whether it's the cover of darkness, the elimination of smells, or the cover of the entrance, the effect is only to fight for half a minute more.

At the same time, near the subway entrance.

A large number of zombies have chased the 21st Squadron away. There aren't many zombies still here, and occasionally a few wander around the subway entrance, but they don't find this secret entrance with a lot of fresh flesh and blood.

In fact, for ordinary zombies, as long as people are a little farther away, even if they don't deliberately eliminate anything, there is no possibility of being discovered by them at all. However, this is only for the average zombie.

A zombie that is only half the body of an ordinary zombie, crawling on the ground on all fours when walking, looks up and looks around from time to time, and then every time he crawls again, he will approach the subway entrance for a short distance.

For this kind of zombie, whether it was the sound of artillery fire in the distance, or the smell of flesh and blood left nearby a few hours ago, it was completely unable to affect it, and it almost crawled to the subway entrance in a straight line.

Like a vicious dog that found bones buried in the ground, this monstrous zombie quickly destroys the cover of the subway entrance with its twisted sharp grip. After making a gap large enough for it to enter, it didn't enter immediately, but poked its head into it and looked for a few seconds into the subway where it should not be able to see anything.

Roar –

A voice sharper than the other zombies came from its mouth. Within a few kilometers in diameter, the zombies, whether they were eating or chasing, stopped their movements one after another, and quickly gathered towards the screaming zombies.

Several zombies approaching the subway entrance were the first to rush over, completely removing the cover of the subway entrance with the most brutal movements, and then followed behind the strange zombies and rushed close to the subway.

The first people who can come here are running zombies, and the first time they enter the subway, their heads are cut off by the wire that runs across the subway steps. Separated from each other rolled out of the distance.

Seeing that his followers were suddenly wiped out, the strange zombie who didn't hit the wire because he crawled suddenly stopped, and continued to scream in the same place, summoning other zombies.

Slightly slower, the running zombies within the roar range poured into the subway at high speed, and then lost their heads at the same high speed. The first wire alone caused hundreds of zombies to fall here. If it weren't for the corpses of the zombies that almost buried the wire underneath, maybe all the running zombies attracted by the screams would have fallen here.

But in terms of results, there is no difference. After several wire interceptions, the running zombies were completely extinct in this range.

When ordinary zombies who only move at walking speed before discovering humans enter the subway, the effect of the wire is drastically reduced, and each one will be broken after cutting off the small number of zombie heads that are pushed in the front row.

However, if the zombies win by numbers, then the soldiers who know this well do not intend to admit defeat in terms of numbers when arranging the wires. Almost every few tens of centimeters is a wire that crosses the tunnel. This is the reason why there is not enough wire, otherwise they would even want to make a wire mesh on which people can walk.

Just advancing to the bottom of the stairs of the subway, the corpses of zombies have covered every space where they can stay. And ahead, there are more than two hundred meters of barbed wire defense that they need to wipe out with flesh and blood.

Roar –

Roar –

The crawling zombie let out a rapid roar. And a deafening roar responded to it.

Like a balloon, a saboteur swept away all the zombies that stood in its way, and then strode towards the wire.

The saboteur also has little intelligence, only knows how to rush forward in response to the call of the crawling zombie. Although the wire that could cut off the heads of other zombies was only up to his chest, and although his muscle strength was amazing, he still did not escape the destruction of the flesh and blood category, and after rushing out of more than ten meters, he was cut into two pieces by dozens of wires one after another.

But this was only the beginning, and after it, several more saboteurs rushed into the subway tunnel. After that, a large number of climbers crawled directly on the cave wall because they were congested by the zombies in front of them. Slower defenders have appeared at the subway entrance.

Three kilometers away from the subway entrance, the soldiers had already increased their speed for the second time under Qiu Yu's order. The howls of the zombies echoed through the tunnel, knowing that there was still some distance, but each one seemed to be close behind them. If a few zombies jumped out of the back immediately, no one would feel sudden.

Qiu Yu gradually became a little more nervous. He became less and less convinced of luck, but he trusted his own calculations and judgments.

Previously redeemed safe houses are more likely to be upgraded from existing safe locations than random appearances. If there's a good place for a safe house, the first place to go is the shelters in the subway where there are several rooms every other section. Qiu Yu has many plans, but the best thing to say is to let everyone hide in a safe house and avoid fighting altogether. After all, there are so many zombies, and fighting out tens of thousands of them will not affect the overall situation. On the contrary, if these people die, they will make their strength weaker. Considering only the purpose of holding out until dawn, the battle is only a means, and there is no necessity.

But now, after walking three kilometers, there are more than 100 evacuation rooms, and none of them have been upgraded to safe houses.

Considering that there may be zombies that can be named trackers, every time you find the safe house a little later, even if you can avoid it, the possibility of zombies killing in the shelter will increase accordingly.

In Akiha's plan, the distance into the tunnel could not exceed ten kilometers. In addition to leaving a maximum estimate of the tracker's abilities, consider the zombie's natural roaming speed. Otherwise, even if you hide in a safe house, but the tunnel is blown up because the zombies wander to the shelter, it is a veritable trap.

In addition to these, the size of the safe house is also a key. If the size is the same as the pre-upgrade vault, then even if everyone is crammed into sardines, it will take at least two or three rooms to fit it.

Since he didn't even find one in the three kilometers, Qiu Yu didn't expect to be lucky in the next few kilometers, and he could meet several at once.

"In three squads, each unit moves at intervals of 10 meters."

In the end, you still have to fight.

Five kilometers from the subway, there was movement from a detector 100 meters behind the troops. Judging from the feedback from the initial probe, the zombie group has already entered the subway tunnel. It was only now that they caught up, and it seems that those wires played a considerable role.

Since it is not the running zombies that are catching up, it is likely that all the runners have committed suicide. But on the other hand, ordinary zombies can't keep up with the speed of the troops no matter what. Now that you can catch up in this delicate location, then the only thing that can be chased behind is the newly appeared mutant zombies.

It's uncertain if the troops will waver, but if it's uncertain, it's a matter of course.

Qiu Yu, who has always been at the rear, did not retreat but advanced after getting the report that the zombies were about to appear, and faced the chasing zombies.

This is not just a simple use of "follow me" to boost morale, but also Qiu Yu's desire to use perception to spread to determine the types and weaknesses of zombies for the first time. Then work out the most targeted and efficient tactics.

To his surprise, within the range of perception spread as far as possible, only one zombie appeared. A zombie crawling on all fours.

For perceptual spread, the information that can be obtained is the same, whether it is dead or alive. And only dead things are the safest. Qiu Yu immediately raised the assault rifle with a silencer installed on it, ready to shoot it.

However, at the moment when the muzzle of the gun was aimed at the zombie, the other party actually crawled slowly, and his head turned away as if he had discovered danger. If it were someone else, as long as it dodged the first shot, it could safely retreat to the zombie group not far behind it, but unfortunately it was Qiu Yu. Fighting perception with the owner of perception spread, there is no possibility of winning at all.

At the same time that the zombie changed its speed and deflected its head, Qiu Yu had already completed the next lock, and then shot his head.

It was only then that the climbers that followed it closely began to appear in the range of Qiu Yu's perception. Qiu Yu could clearly observe that the climbers' movements were uncoordinated for about half a second, and then accelerated towards them again.