The falling elevator was so static that the entire core pillar tower could feel the violent vibration. Although Wang Yuanhai didn't know that Wilder had been killed by him, the time left for Qi Lin would never be sufficient.

Once Wang Yuanhai guessed that he might have known something from Wilder, he might directly activate the defensive facilities in the core pillar tower to kill him.

Moreover, when Wild died, Qi Lin's value in Wang Yuanhai's eyes will naturally decrease a lot...

If Wang Yuanhai did something like burning bridges across the river at this time, Qi Lin would not be surprised at all.

Judging from the current situation, the elevator shaft should be safe. Due to the power outage on the eighth floor, Wang Yuanhai could not mobilize whether it was surveillance or weapons. As for the central control room on the ninth floor—

Qi Lin was not sure whether Wang Yuanhai showed him the saved images or real-time monitoring. If it was the former, then for Wang Yuanhai, the central control room was also a blind spot in the field of vision. If it was the latter, it means that the central control room was under Wang Yuanhai's monitoring, and Qi Lin's actions should be more careful.

At least, Wang Yuanhai cannot see through his intentions when he finds that hard disk.

However, Qi Lin can be sure that even if Wang Yuanhai can see the monitoring of the center control room, he will definitely not have the right to mobilize the weapons and facilities there, otherwise he will not have to let himself restart the system of the center control room.

There is also a compressed file package that is transmitted to Qi Lin’s personal intelligence together with two 3D maps. According to the task content, as long as Qi Lin restarts any computer in the central control room and then copies the compressed file package directly into the computer through the infrared transmission interface, his task will be completed.

"This should be some kind of computer virus?"

The compressed file package with only a few hundred k bytes was previously considered a backdoor key of the central control room system, but according to the current situation... it seems that it is a virus more likely.

Qi Lin's personal intelligence brain is a binding prop given to everyone by the main brain. Although there is no need to be afraid of being infected by the virus, there is no way to parse this compressed file package.

In addition to providing information and storing data-type tasks, personal intelligence cannot have any other impact on the game world.

Qi Lin recalled the various things that happened after entering the 404 base, and further affirmed his guess:

If Wang Yuanhai really has a systematic backdoor key, can the central control room be opened? At least at the entrance corridor, he shouldn't watch him pass by death. Otherwise, the next person to enter the 404 base will not know that he will have to wait until the Year of the Monkey and Horse Month.

In addition, the dying Wilder told himself not to believe Wang Yuanhai and found the computer hard drive in the center control room. What does that mean? Does it mean that Wang Yuanhai is actually a traitor at the 404 base? Or... has another meaning?

...

...

Following the rails in the elevator shaft, Qi Lin returned to the eighth floor of the core column tower again. Although Qi Lin no longer trusted Wang Yuanhai, to enter the central control room, he still had to drill through the ventilation pipe of the air pump room.

As the central hub of the entire core column tower and even the entire 404 base, the thickness of the metal gate is comparable to that of the central bank vault of the old era. Even if the power of the directional breaking bullet in Qi Lin's hand increases by ten times, it is difficult to explode it.

After taking back all the equipment and props that had just been scattered, Qi Lin picked up the scrapped Gauss sniper rifle.

Due to the different caliber and shooting mechanism of the Gauss sniper rifle, basically all the common barrel accessories cannot be replaced. It seems that they can only go back and find Passephine to re-customize a barrel.

The original backpack was so broken that it could not be broken anymore, but fortunately there were many corpses of private soldiers on the ground. Qi Lin picked up a tactical backpack that he liked, took it down and carried it on his body, and then put all the items and supplies he had picked up.

As for the weapons all over the ground, Qi Lin had no idea. Anyway, the ventilation pipe was so narrow that even the backpack would have to be left in the air pump room, and it would be useless to take more weapons.

...

According to the pipeline structure diagram given by Wang Yuanhai, Pipe No. 1 leads to the central control room. Qi Lin quickly found the air pump machine with a huge "1" character brushed on the far left of the air pump room.

Putting the backpack, gun, etc. aside, Qi Lin walked to the snorkel that was thick with two people hugging each other.

The ventilation pipe is divided into two parts, part of which is a metal pipe buried in the building wall. The section is a square with a length and width of 55 cm. The exposed outside the wall is connected to the air pump machine is the black and thick rubber pipe in front of Qi Lin.

There were dozens of fixing bolts at the connection between the rubber tube and the metal tube. Even if there were tools, it would take at least ten minutes to screw them all down. Qi Lin simply summoned the bone blade and made a large enough hole in the rubber tube. Then he bit a small dagger and drilled into the hole.

The pipe was indeed very clean. At least at this point, Wang Yuanhai did not lie to him. However, every time he crawled ten meters in the pipe, Qi Lin had to stop and remove the metal filter that blocked the way before he could continue to move forward.

After climbing through a fifty-meter-long transverse tube, the pipe bent over a radius and led straight to the central control room on the ninth floor above.

Fortunately, the turning point of the pipeline was an arc, not a right angle of ninety degrees, otherwise Qi Lin would not be able to get through it.

With his hands and feet in the toad-like shape, he pressed his back against the inner wall, and his back was pressed tightly at the same time. Qi Lin maintained this position and quickly moved up the vertical pipe, and soon climbed to the top of the pipe.

Now, there is only the last obstacle left in front of Qi Lin - that is a large blower fixed at the pipe entrance.

If you want to leave this exit, you can only remove the blower first.

After renovating the firearms for so many years, Qi Lin quickly used the small dagger to split them into original parts and threw them down along the ventilation duct.

After removing the blower, Qi Lin kicked the last metal filter and entered the central control room of the core column tower.

According to the image perspective of the central control room I saw in Wang Yuanhai in my memory, Qi Lin looked up at a corner on the ceiling of the central control room. Sure enough, there was a surveillance camera there.

However, the indicator light representing the working status of the surveillance camera is dim, which means that Wang Yuanhai is actually not able to monitor the situation in the central control room.

Qi Lin breathed a sigh of relief, which reduced a lot of pressure from him.

For insurance reasons, Qi Lin threw the small dagger in his hand out as a flying knife, destroying the lens of the surveillance camera, and then set his sights on the machine in the central control room.

These machines are different from ordinary civilian computers in the old era. For the sake of easy operation, all machines are connected to a large LAN server, while data storage is a shared super hard disk. This hard disk is inserted in a metal cabinet two-tall height beside the wall.

When he thought of knowing that he was about to know the entire secret of the 404 base, Qi Lin couldn't help but speed up a little bit - and at this moment, a projection of a cube made of red laser suddenly appeared in front of him, and the ai sound that had been missing for a long time also sounded again.
Chapter completed!