The second lab is not easy to solve.

The four monsters in the laboratory are naturally very few, as long as they clean up a little, the four monsters are not a problem at all, but the problem is that there are still nine infected people in the corridor outside the second laboratory.

The nine infected people were in the empty corridor, and there were no bunkers around them to block them, that is to say, they had to fight the nine monsters head-on.

The distance between the first laboratory and the second laboratory is not close, there is a distance of nearly 100 meters. If the infected people in the corridor of the second laboratory are attracted by this distance, the noise will not only be caused by the second laboratory. The infected will come, and so will the third lab.

Therefore, it is impossible to lead to the first laboratory. Fortunately, they had anticipated this situation when discussing countermeasures and plans, and they were well prepared.

Make a bunker if there is no bunker. At this time, the person with a large shield needs to stand up and block the front, and the people behind support the shield together as a block. The hardness of metal and bulletproof glass is very high, even if the strength of monsters It's big, but short-term blocking can still be done, and the shield can last at least 2 minutes.

And the person holding the bio-nanometer net and the weapon stands behind the shield to attack - there is a shield blocking it, it is not easy for monsters and them to attack, but there is a folding ladder on the human side!

So what they do is the bunker flash attack style-attack once, retract, attack once, retract, so that monsters can't hit even if they want to.

The plan is very rogue, and it is more fun when it is practiced. Although the shields in the front row are always frightened, I am afraid that monsters will break through the shield and pass through, but the metal plate and bulletproof glass are very durable, and the attack in the back row The personnel were very strong, but in just one minute, five monsters were completely restrained, while the other four monsters slowed down.

"Back off!"

The shield players retreated step by step. The biological nano-net has been used up, and some of the super elastic glue has been consumed. The rest needs to be reserved for other monsters for rations. The next time will be hand-to-hand combat. Therefore, we must first withdraw a certain distance .

The shield hand retreated step by step, but the monsters were still struggling in place. After reaching the effective safe distance, the shield hand also opened the protection in response, and the attackers made preparations.

First there was a wave of throwing weapons, and then Qiao Yiqiao stepped forward and together with the others, paralyzed the slowed monsters. When none of the nine monsters had the ability to attack, they made a quick make-up attack.

This series of attacks took a total of 7 minutes. When the last monster died, everyone breathed a sigh of relief, and then the restraint personnel stepped forward to clean up the biological nanonet, and recycled some of the elastic glue that could be used, and picked up some by the way. arms.

The nine monsters in the corridor were resolved, and the next four monsters in the second laboratory, the old rules, stuck at the door, threw the bio-nano net, and finally everyone made up the knife. This time the battle was very fast, it only took 1 minute Left and right, four monsters passed away one after another.

The second laboratory is cleaned up.

Next to the second laboratory is the security department. The monsters in the security department have been dealt with by Asa. They don't need to go in again, but go inside from the second laboratory, which is the fourth laboratory, and from the fourth laboratory to the other Walking on one side is the third laboratory.

This is an elliptical corridor, with the second laboratory on the left, the third laboratory and the director's office on the right, the first laboratory and the security department in the middle, and the fourth laboratory in the innermost.

And if they don't want to provoke the monsters in the fourth laboratory in advance, they'd better return to the first laboratory the same way, and then start to clean up the monsters in the third laboratory from the other side.

Everyone went back the same way.

Although the monsters on the original road have been cleaned up by them, theoretically there should be no more monsters, but everyone is very careful, the speed of the monsters is faster than them, and it is not without the possibility of wandering, so even if The original road has been cleared, and everyone is still paying attention to where each monster may appear.

Fortunately, although they had experienced several battles and caused a little noise, no new monsters appeared on the original route, and they returned safely to the circular corridor of the first laboratory.

Then, there is the third laboratory.

Compared with the nine infected people in the corridor of the second laboratory, the third laboratory is relatively simple, with five in the corridor and seven in the laboratory. Although there are slightly more infected people in the laboratory, But with the door, a sharp weapon that can control the effective attack range, the infected people in the laboratory are still easy to deal with. The only thing they need to pay attention to is the infected people in the five corridors.

With the experience of dealing with infected people in the second laboratory, these five infected people are naturally easy to deal with. In less than 5 minutes, the five infected people in the corridor have been cleaned up. Everyone stepped forward to make up the knife and recover their weapons , Just when they thought that this time the suppression would be as smooth as before, Asa suddenly shouted, "Retreat!"

There are defenders, capturers, supporters, and attackers. Naturally, there will be guards in the team. Dr. Yan, who seems to have no offensive power and has time to pay attention to others, is naturally the best candidate.

Of course, what neither Qiao Yiqiao nor Dr. Yan said was that Asa had a unique ability to sense monsters.

Therefore, Dr. Yan is the most appropriate person to act as the security guard.

At this moment, it is time for Dr. Yan to play a role, because when everyone finished dealing with the five monsters in the corridor and the formation was scattered, the seven monsters in the third laboratory, whether because of hearing the noise or something else, unexpectedly Also out!

In other words, at this moment, without some restraint weapons, they had to face a total of seven monsters.

If they are caught off guard, they will definitely suffer a big loss, and it is even possible for the entire army to be wiped out under the surprise attack of the monster. Fortunately, Dr. Yan warned in advance. When the monster went out, they had already retreated a certain distance. The defenders even instinctively raised the shields in their hands, so that when the monsters reacted to attack, except for losing the biological nano-net and part of the elastic glue, they actually did not give the monsters a point to break through, blocking the monster's first attack. A wave of attacks.

The first wave of attacks was blocked, but the next one was not easy. They lost their bound weapons, so they could only fight with real swords and guns. Although the dodge technique is easy to use, it also has a corresponding weakness, which is the long-range attack power The output is low and the output is weak. If this continues, they will not be able to attack effectively and kill monsters until the shields are completely broken.

The danger was imminent, even though he was reluctant, Qiao Yiqiao could only say, "Use poison/gas, everyone prepare gas masks."

This is the weapon they seized on the fifth floor before. Like the wooden thorn, it is a weapon with enough power but a small amount. Qiao Yiqiao originally planned to use it to fight against the fourth laboratory and to prepare for unexpected events, but now When the bio-nanometer mesh and super elastic glue are exhausted, this is the only way to use it.

Otherwise, if the monster rushes in, maybe they can kill the monster, but they also have to bear the risk of their companions being infected by the monster and turning against each other.

So, use it anyway.

Poison gas is a kind of nerve gas, which can cut off the nerves connected by paralysis and make monsters lose their mobility. It also has a disadvantage, that is, it needs a relatively large amount, which is only enough for them to use once, and it is easy to hurt people and themselves.

And rare weapons naturally have rare effects. The monsters fell down one after another in just a few seconds, unable to move anymore. Qiao Yiqiao and others easily went up to repair the knife, and brought back the biological nanonet by the way. Clean it up and see if you can continue to use it.

Sadly, after these few battles, even though the bio-nanonet was strong enough, it was worn out a lot, and now they have only seven left in their hands.

These two battles lasted a total of 1 minutes, and now more than half an hour has passed since they entered the fourth floor, and they finally walked in front of the fourth laboratory.

The fourth laboratory, their final destination, the experimental Y cells infected mice are here, and also their final destination, the original Y cells.

As long as the Y cell original is obtained, then these cruel monsters can be ended.

For this last laboratory, they have of course prepared a corresponding plan. As long as the six monsters in the outer room are stuck at the position of the door, it will be easy to solve. The only thing they are not sure about is that in the fourth laboratory. How many monsters are there in the room?

There may be few, but there may be many. For this reason, Qiao Yiqiao even prepared a plan for all personnel to evacuate immediately if there are too many monsters. No one objects, and they also have this hidden worry.

There were so many people in the other laboratories where the accident did not happen, so the number of people in the fourth laboratory where the accident happened at that time-should be only a lot, so there is nothing wrong with making more preparations.

Immediately, Qiao Yiqiao opened the door.

The monsters rushed over as soon as they reacted. Everyone was still doing the familiar combat process, throwing the net to slow down and then make up the knife, but this time, because the number of biological nanonets was not enough, they had to fight hard for two to two minutes. Only three will do.

Only this time, before Dr. Yan could alert him, Mike said in surprise, "Wait, this is a person on the second floor!"

As the team leader of the security department, Mike is familiar with the personnel on each floor. Although the exact number of people is not clear, he can always recognize which floor it is when he meets him. At this moment, he recognizes the people on the second floor.

However, before Mike's voice fell, he turned his gaze and was even more surprised, because this was obviously a first-tier person.

"And the first floor."

Everyone's hearts suddenly sank. Even though the six monsters in front of them were about to be killed without any power to fight back, it didn't make them have a good mood. The presence of people on the first and second floors in this place really meant It's too bad, that means that there are far more than that few people in the fourth laboratory, and even the people on the first and second floors may not necessarily gather here.

And sure enough, just as they killed the six monsters one after another, the door inside the fourth laboratory also started to slam. Almost in the blink of an eye, the metal door was torn apart by the monsters inside. There appeared in front of them... more than two dozen monsters.

"run!"

Everyone retreated quickly, if they could still fight within ten, there were so many, if they didn't run now, when would they wait?

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