Several chain traps at the entrance of the subway station were easily cracked by Qi Lin and No. 4. The two rushed into the subway tunnel with their weapons. However, before they could penetrate the tunnel more than a hundred meters deep, a dense rain of bullets blocked their steps.

"It is an automatic defense machine gun... It seems that the entrance chosen by the other party is indeed not here, otherwise these machine guns hanging on the top of the tunnel would not still exist." Qi Lin said.

Using the overlapping dragon scale plates as cover, Qi Lin used the m107 sniper rifle to destroy the automatic defense machine guns one by one.

However, the master's brain's methods were obviously not limited to this. As soon as Qi Lin exploded the last machine gun, dozens of skeleton-like mechanic soldiers staggered out from the depths of the tunnel.

The end of the left arm of these mechanic soldiers is a pair of rusty hook claws, and the right arm is directly welded to the barrel of the large-caliber assault rifle. This simple and crude combination made Qi Lin sigh slightly. After all, they are only facing the "main brain" simulated by "organization". These low-cost mechanic soldiers may not be as powerful as the models produced by Daiwa Heavy Industry.

If their target is a real mastermind, they may not be facing these simple mechanic soldiers, but a large number of biochemically transformed mutant creatures and almost endless flesh and blood puppets.

No. 4 stacked the fourth layer of dragon scale plates and pressed them to the front. The mechanical soldier's bullet hit the outermost dragon scale plate, making crisp sounds constantly, echoing in the tunnel. Qi Lin followed No. 4, poking out a muzzle from time to time, killing a mechanical soldier with one blow.

It seems to be to save materials. These mechanics don’t even have the most basic armor, and the power components and core chips are exposed so nakedly. Qi Lin can’t even use m107. Just a 5.56 nato bullet can be shot one by one.

"It feels a little wrong...The strength of these mechanic soldiers is too weak. Even if they simulate the main brain, they cannot have only this strength, otherwise they will not achieve the training effect at all..."

It took Qi Lin only more than three minutes to put all the mechanic soldiers down on the ground, even shorter than their time to solve a breakfast.

"I think it's a bit strange... The target machines we face in daily training are not that weak... These things seem to just weld weapons to civilian robots, and there is no sign of being controlled remotely. They are all in a state of self-discipline, and the shooting rate is very low. More than one-third of the bullets hit the walls and ceilings on both sides." No. 4 further analyzed.

"I guess the main force of the main brain is dealing with those two guys. After all, they are simulated main brains and have limited computing power. For the uninvited guests of the two of us, there is only such a low-level self-disciplined robot to resist."

"Then do we still have time?"

"It's hard to say, I have to speed up... Damn it, this is the first time I hope the master's brain can be stronger and just hold those two people tightly."

After saying that, Qi Lin quickly ran towards the depths of the subway tunnel...

...

...

Ten minutes later.

"Huh...is this the 'underground hub' in the mouth of the prisoner?"

The so-called subway is just a "protect". The only thing that is on the platform is that it imitates the subway station of the old era. The length of the railway tracks is only less than one kilometer. Walking further inside, there is only a tunnel that has only been simply excavated. In addition to the flat ground at the foot, there are all uneven exposed rock formations on both sides and above the head.

After passing through this tunnel, an empty underground space appeared in front of Qi Lin and No. 4.

"This... this should be transformed by a small refuge..." No. 4 said in surprise.

"It's possible." Qi Lin nodded.

What appeared before the two was a completely mechanized city... No, it was more appropriate to say that it was a factory than a city. However, at this time, the giant factory seemed to be in a stagnant state. At first glance, the two saw a large number of skeleton-shaped mechanic soldiers hanging quietly on the hook frame of the assembly line, and next to the assembly line, there were a large number of cast iron armor plates piled up.

"It seems that the reason why the mechanic soldiers we encountered is so weak is that they are all semi-finished products. In this way, we have to thank our opponents."

"They are there!" No. 4 said, pointing to the central area of ​​the "factory", which was a fully metal structured computer room. The door of the computer room has been destroyed, and replaced by a high-end baffle with a shooting hole "Immortal Shield".

Compared with the dragon scale plate carried by No. 4, the weight of the "Immortal Shield" is more than twice as much. It is not only due to the difference in material, but also the front armor of the main battle tank is more than enough, and the thickness of the dragon scale plate is only only four centimeters.

Unlike the dragon scale plate that can be flexibly combined and transformed, which can be used as bulletproof shields, and can be used to build temporary fortifications, the Immortal Shield is just a "door panel" with high defense. Few people choose such bulky equipment in mobile combat. This thing is often used to provide cover for heavy machine guns fixed on the position. Although it uses a large number of advanced technologies and is very expensive, this embarrassing equipment is on the verge of elimination before it has been developed.

Before, Qi Lin wondered why the organization provided the "Immortal Shield" for them to choose from, but now, the other party's approach is obviously to fully play the role of this immortal shield.

Not to mention the large-caliber assault rifle in the hands of the mechanic soldiers, even the small-caliber cannon has no choice but to use this piece of iron lump. As for some mutant creatures that have undergone simple biochemical transformation, they are even less than close to the door of the computer room, and are torn into pieces by the flames spit out from the shooting hole.

The other party has occupied the computer room, and the cracking operation is obviously in progress. If the simulation master's brain cannot break this situation, then it will be only a matter of time before the distance is closed.

"What should we do? The master's subordinates cannot break through the immortal shield, and we have no way to use it." No. 4 asked.

As mentioned earlier, the Immortal Shield is 20 cm thick, and the position of the shooting hole has been deepened. If it is not a vertical angle, even if the sniper aims at the shooting hole, it will be difficult to hurt the person behind the shooting hole.

If you want the bullet to pass through the shooting hole, you must make the ballistic and the immortal shield form a nearly vertical angle.

The structure of the entire underground hub is a round well that starts from the edge and extends downward spiral. The computer room and factory are located at the bottom of the well, while Qi Lin and the others are located at the edge of the well. If Qi Lin wants to find a suitable shooting angle, he needs to face not only the other party's muzzle, but also have to break out a path from a large number of mechanic soldiers and biochemical monsters.
Chapter completed!