This is the only way to explain how the other party managed to escape from the members of the two snow wolf groups, and even I kidnapped a member of the snow wolf team.

The level of those people just now is just the level of an ordinary special combat team, they must have reserved a back door on Wu Meng, and then suddenly attacked Wu Meng and Zhao Hu by surprise, otherwise they would not be the opponents of Wu Meng and Zhao Hu at all.

Thinking of this, Lin Song said directly: "Don't worry about that for now, find a way to defend the Ark base first." ”

That's right, with the fall of Coldwater, the entire Calaway Basin has been largely overrun by the living dead. These living dead are extremely vigorous, and even if their limbs are broken, they can still survive without medical treatment, and they can retain a certain amount of threat.

Moreover, after being scratched or bitten by a living dead, after a few days of infection, the injured person will also become a new living dead. In the process of this trade-off, the entire Callaway Basin quickly fell, and now the Ark Base is probably the only complex in the Callaway Basin occupied by healthy and healthy humans.

The outer walls were now in thin air, and with the exception of a few elite fighters who were left behind on the outer walls, the vast majority had withdrawn to the second line of defense.

Lin Song himself was now among the group of people in the first line of defense, and seeing that those living dead were approaching, Lin Song shouted and pulled the trigger.

"Beware, everyone is the living dead rely on the combined action of their brains and autonomic nerves to control their movements, breaking their limbs, or even breaking their torsos is not very useful, only directly breaking their heads is useful!" Du Wenwen shouted in the back.

"I heard it, according to what Professor Du said, don't empty the gun. Hit on the body, hit on the arms and legs, it's all a waste of bullets, we don't have much ammunition, we save a little use! Lin Song also shouted.

"Help us! Let's come in! We're no longer loyal to Wesley! ”

Lin Song followed the sound and looked over, and saw that outside the outer wall, there were dozens of people pleading, just now when arresting Wesley, Lin Song asked Wood to expel these people to the outside of the outer wall, and now the outside is full of living dead people', these guys will definitely die if they stay outside.

"What to do!" Wood held his gun and asked as he shot at the living dead in front of him, "Do you want to keep them?" ”

Lin Songyi frowned, but he still made a quick decision: "Now as long as it is a normal human being, it can be regarded as our ally." After all, they want to be alive too, so bring them in, but remember to keep an eye on them, and don't let these people mess with them in the back! ”

The dozens of people were let in, but were quickly driven to the outer wall by Wood's men: "You are all excellent mercenary backgrounds, the outer wall defense line will be handed over to you, you will hold on here for at least an hour before you are allowed to retreat." ”

This request was made by Lin Song, in Lin Song's opinion, if they want to live, they will naturally have to pay some price, and it is cheaper for them to let them stick to the outer wall, not to mention that Lin Song has already used the original transportation pipeline to build a retreat channel between the defensive position of the outer wall and the second line of defense. Even if the living dead crossed the outer wall defenses, they could retreat through these pipes suspended in mid-air.

These mercenaries can be regarded as acquaintances, they know that Lin Song can allow them here this time It can be regarded as an extrajudicial favor, so they don't ask for anything more, one by one honestly carrying guns, rushing up the outer wall, and starting to shoot at the crowd of living dead who are getting closer and closer.

In this way, Lin Song and the others retreated into the second line of defense in advance, but what people didn't expect was that this seemingly random decision actually saved Lin Song's own life.

Seeing that the living dead had rushed to the foot of the outer wall, the mercenaries could almost be said to have shot at the head of the living dead with the muzzle of their guns, and before long, they heard someone screaming.

After these living dead people were infected by the virus, it seemed that their physical strength and bouncing power were much better than before, and the outer wall was already nearly three meters high, and those mercenaries stood at the top of the wall to shoot, and there was still a certain distance from the living dead. Therefore, the mercenaries are shooting relatively calmly, and as long as the retreat channel in the rear is still there, they don't have to worry.

Who knows, there was a living dead man who jumped up directly and grabbed a mercenary by the ankle. After the living dead were infected, the force of their hands was extremely strong, and after grabbing the mercenary's ankle, the whole body fell down hard, the mercenary lost his balance, and the whole person fell into the crowd of living dead below.

Those living dead rushed up without hesitation, tearing and gnawing, and in an instant, the mercenary turned into a pool of lifeless flesh.

Seeing this scene, the people in the rear were a little timid, they had fought with the living dead before, but they never realized that the physical strength of the living dead was still so powerful. Originally, they only thought that the living dead were just physical strength and endurance, and that their vitality was much better than that of humans, and that they were slow and intellectually low. I didn't expect them to have this hand.

Zhao Hu said in a low voice: "Boss, do you want to let those mercenaries withdraw?" ”

Wood also whispered, 'yes, do you want to let them withdraw?' ’

Lin Song nodded: "Withdraw, there is no need for the outer wall defense line to exist." ”

In fact, now there is still nearly half an hour before the one-hour deadline given to them by Lin Song, these mercenaries originally thought that they would be trapped on the outer wall, but they didn't expect Lin Song and them to open the net, and they immediately felt grateful, on the other hand, they hurried up the time to start retreating through the air passage and to the second line of defense.

As everyone knows, one of the pipelines was in disrepair for a long time, and those mercenaries were a little too anxious when they retreated, and five or six people stepped on the pipes at the same time and retreated together, and finally broke the pipeline.

Seeing these five or six people fall into the crowd of living dead below at the same time, everyone thought they were dead, and Lin Song directly picked up the automatic rifle and fired three rapid shots in a row, directly eliminating the three living dead closest to them.

In this way, the lives of two of the mercenaries were directly saved. Qian Donglu also reacted and hurriedly shot to cover these mercenaries.

In the end, one of the two mercenaries, still due to physical exhaustion, fell down again in the process of climbing up, and only one of the six people climbed back.