Outside the lab where the zombies were kept.

The zombies roared constantly, and except for Yin Yunchen, everyone felt a little uncomfortable.

"Let's do it quickly."

This location is cramped, and it is really inconvenient to fight, and this laboratory cannot be blown up, otherwise the self-destruct device will be activated, and the entire laboratory will be destroyed.

This is a last resort and cannot be used.

Because the laboratory also holds some radioactive materials, there is no guarantee that these materials will not be leaked unless they are all obtained.

Several of them have found their positions and are ready for the first round of shooting.

The leader walked over and approached the lock with his badge.

This lab is not classified, so there are no complicated procedures, and only a certain level of work permit is required to open.

Fortunately, the laboratory was strong enough, and the zombie couldn't break out.

There are people in the labs, in the corridors and so on.

Some of them were wearing the same clothes as the team leader, presumably their teammates.

The work card is close to the card slot of the door lock, and the zombie with the spirit system inside is banging against the wall again, no, it is banging on the door.

"Three, two, one."

The team leader shouted, he swiped the door card, and then quickly ran towards the crowd.

The door lock turned green, and he rushed out with the zombies.

Dynamic objects are not so easy to shoot in, not to mention that this girl can only die if she hits a small piece in front of her forehead.

That is, hitting the body is equal to not hitting.

A hit in an unimportant part of the head is equivalent to a minor injury.

Only a shot in the center of the eyebrow, or a bullet penetrating the skull that damages the part connecting the nerves, or directly hitting the crystal nucleus, is considered a serious injury, or can cause death.

Just a little bit of bullet, to kill zombies, really, it's not okay if the technology is not good.

Other zombies, it's okay to cut off the head, anyway, the head can't walk, can't run.

It's okay to look at it first and then dispose of it.

But the spiritual department can't do it, isn't it the same as cutting off your head to attack you, take your time, it's not necessarily who dies.

Several of them took turns shooting, fighting and retreating, but they did not panic at all.

It's just that these bullets only hindered the zombies, so they didn't have to retreat in a hurry.

There were a few that hit the center of the eyebrows, but they were still exposed.

"This head is like a steel plate."

When Zhang Zhen saw this, he couldn't help but complain while fighting.

Yin Jin can now be sure that this is a zombie who has just entered the second level.

A second-level zombie that can't pierce the skull.

She only saw it two years after the end of the world, but now it is only three months after the end of the world, and she actually saw a second-level zombie.

I wonder if she was a late-track hiatus, or if it was an exception, or if the wings of a little butterfly flapped a tornado?

Fortunately, this zombie has just entered the second level, and they are still very promising.

The bullets that hit the zombies were one by one, but they had no effect on the zombies' actions.

Seeing that everyone was about to retreat to the central control hall.

At this time, the group leader on Yin Yunchen's side vomited blood and fell to the ground.

Uncle Li quickly dragged the person and said to Zhang Yang beside him.

"Hurry back."

The two immediately dragged people and ran towards Yin Jin and the others, and the team leader who was shooting together next to them immediately turned around and ran when he saw this.

"Captain, shoot."

Zhang Yang shouted.

When Yin Yunchen and the others, who were retreating, heard this, they immediately turned around and shot the zombies to cover the retreating people.

When several people converged, Yin Yunchen looked at his unconscious teammates.

"Zhang Yang, you take him to the door and let the people at the door retreat. You stay at the door and get ready to lock the door. ”

They didn't know if they could kill this zombie, so they couldn't do it, so they had to withdraw.

"Captain!"

Zhang Yang doesn't want to leave, his comrades-in-arms have to fight side by side, where can he be a deserter.

"If you don't want us all to die here, just listen to me."

Zhang Yang is young, not everything can be figured out, but he is stubborn.

Zhang Zhen knew that Yin Yunchen was the best arrangement, so at most he couldn't kill this zombie.

"Zhang Yang, hurry up."

"Dad! I'm not leaving!"

Now the situation is urgent, and no one can explain anything to him.

They are all fighting and retreating, hindering the footsteps of zombies.