Soon, the ground of the hangar below cracked a ramp passage four lanes wide and more than 400 meters long at the edge of one side.

The passage stretched all the way down from the starting point, and by the end of the crack in the ground four hundred meters away, the difference between the ground above and the slope below was about thirty meters.

From this point alone, this underground base is also built at least thirty meters underground, and possibly even deeper, or...... There is not more than one floor at all, but it has a multi-story structure like the underground hive base headquarters of the "umbrella company" in the movie "Alien".

In fact, it is.

According to Su Xinyuan's general understanding from the mouth of Jobs Westin, this secret "underground base" with a huge area of "District 61" on the ground as a cover does not have one floor, but three floors.

Of the three floors of the entire underground base, the top first floor is the largest, with a length and width of five kilometers, almost like a small town on the ground. Located at a depth of thirty meters underground.

The second basement level is a little smaller, but it's also four kilometers long and wide, which is just as terrifying. Its depth is 50 meters

As for the third underground layer at the bottom, its length and width are only two kilometers, but it has penetrated to a depth of 80 meters underground, even if the "61st District" is attacked by missiles, and there is something wrong with the upper two floors, this third underground layer at the bottom will definitely be fine.

Of course, the area of several kilometers in length and width mentioned here is not completely and comprehensively, in that case, such a large area of the overall space will be hollowed out, the structure will become extremely unstable, in case of a small earthquake, there may be a danger of collapse.

Therefore, the three-story huge area of the entire underground base is grid-like every time, and a part of the original geological wall is left at intervals without hollowing out, but after being reinforced with a reinforced concrete structure to make a flat wall, it is detoured from the edge and excavated, and finally a huge space with a large number of supporting walls is formed like a labyrinth, and this stability has been greatly improved.

These were all checked by Su Xinyuan from the computer of Jobs Westing.

In addition, the three underground floors of the entire underground base are also completely different in terms of functions.

To put it simply, the entire underground base is actually a huge institution dedicated to the study of advanced secret forces on the Meijian side.

The fields involved in the various research and experiments here cover unknown high-tech military science and technology, life engineering, biological weapons, and other secret industries, as well as many top-secret programs that cannot be made public.

For example, a so-called "fantasy soldier" has a super regenerative ability in terms of proprioceptive abilities, and can repair and evolve after being injured, and his vitality is extremely strong.

On the outside, the main side of the individual equipment is wearing a super composite bulletproof and heat-proof multi-functional combat suit, and it is also equipped with some weapons similar to the super high-tech individual firearms that are so powerful that they are not inferior to the Gatling multi-barreled heavy machine gun, but they are extremely small and lightweight, and they are even very likely to have various other powerful combat skills.

A plan such as the development of such a powerful "dream soldier" who can be called invincible on the battlefield in terms of individual comprehensive combat effectiveness falls within the mission scope of this secret "underground base".

Of course, this kind of "dream soldier" is still just a direction of Nu, and he is only one of the various secret studies of this secret "underground base".

Su Xinyuan even wondered if there was really a so-called "green house" here that specialized in the study of "aliens", but he didn't find this even from the computer in Jobs Waiting's office, maybe it really wasn't, or maybe it was too sensitive, and he didn't store the information on the computer, who knows!

According to Su Xinyuan's understanding, the three-story area of this secret "underground base" is actually three different departments: the first layer is the "military department" and the "development department", the second layer is the "research department", and the third layer is the ...... Even Su Xinyuan didn't know that the information about this layer in the computer data of Jobs Waiting's guy was completely blank.

If we look at the division of labor alone, these three departments are different, but they generally revolve around the normal development of various research in the support base.

The "military department" is mainly responsible for the deployment of troops and the execution of operations, as well as the transportation and distribution of various supplies and materials throughout the base, as well as the intelligence work within the base itself, as well as the skill training and espionage work of the vigilance force. To put it simply, this division is both the main armed force of the entire underground base, as well as the internal intelligence and investigative agency.

The "development department" is mainly responsible for the technological development of all kinds of drugs, genes, viruses, and all kinds of military science and technology and biochemical science and technology, such as the base's computer control system, as well as auxiliary research work.

The "research department" is mainly responsible for the research of various drugs and reagents, such as the culture medium of various viruses. Through the comprehensive testing and cultivation of related products in various genes, Jier produces the final products of various researches.

And Su Xinyuan's target this time, Lei Quan's old ghost, is now in the "Research Department" on the second underground floor.

The entire "research department" covers an area of 16 square kilometers, and is not a single area, but is divided into many areas, some large and some small, by the supporting geological walls that have been specially left behind.

The studies carried out in different regions are also different. For example, some areas are researching "clone warriors", others are researching "cyborg soldiers", and some areas may even be researching "half-beast soldiers" bred by injecting some beast genes into mixed cells, and so on!

Because of the different research directions and topics in these areas, there is usually little intersection with each other, and the old ghost Lei Quan is now placed in many areas of the second-level "research department", a research area of the "colonized soldier" that is being prepared.

This area is located in the third east area on the second floor, the area is the size of two football fields, and there are even cages and other things in it, in short, everything in the destroyed Lei Quan gene research room is here.

From this point alone, it can be seen that Jobs Westing's guy still attaches great importance to Lei Quan's "super soldier".

From the above introductions alone, you can know how complicated the secret underground base of the entire third floor is, if Su Xinyuan didn't get the exact location of the old ghost of Lei Quan from Jobs Westing, it would be impossible to find out the old ghost of Lei Quan from such a large area in the first place after entering. And once he enters the underground base and exposes his body, if the old ghost of Lei Quan wants to slip away, he can't stop him at all!

Thinking of this, Su Xinyuan was secretly glad until now, and at this moment, in his sight, the Humvee military vehicle of the United States ** side had driven to the end of the four-hundred-meter ramp passage leading to the underground base, and on the four-lane wide ramp passage, the hangar floor that served as a cover for the roof had begun to slowly stretch out, and it would soon be closed.

It was also at this moment that Su Xinyuan did not hesitate to directly urge the energy in his body and once again activated the "teleportation" ability.

In an instant, his figure disappeared in the middle of the hangar, and when he reappeared, he had already arrived at the slope passage leading to the underground base, and from the ground of the hangar had closed into a gap that was only about half a meter wide, and his figure could be vaguely seen After suddenly appearing, he immediately swept towards the end of the slope......

……

When Su Xinyuan swept to the end of this ramp passage, he saw that it was not a vast underground hall with an area of one person, but three equally wide passages, pointing in the three directions of front and left and right, respectively, at this time, he was like standing at an intersection, and behind him was the ramp passage that formed one of the roads at the intersection.

The three passages in front of you have been extended to the end of the line of sight, in which you can see that there is a new intersection like a fork in the road every other distance, obviously, this vast area, is divided into a large and small piece of independent area by these passages extending in all directions, just like a super-large prison, the whole space is divided into a relatively independent cage. But there are portals to each other.

Su Xinyuan didn't stay too long, and slightly recalled the diagram of the underground base structure that he had seen from Jobs Waiting's office computer last night, and his figure quickly swept towards the wide passage in front of him.

The passage of the entire underground base is naturally equipped with a large number of monitoring and control heads, but the speed that Su Xinyuan showed in the case of urging all the energy in his body, under normal circumstances, he could not be found from the monitoring probe at all, and there was not even a shadow that passed by, unless the surveillance video was played at a slow speed of more than ten times, a faint shadow could be vaguely seen flashing quickly.

If you want to see his figure clearly, you need at least thirty times more slow playback.

And now, the monitoring equipment is running, if nothing unexpected happens, obviously no one will be bored enough to deliberately call up the surveillance video from a few minutes or half an hour ago and replay it at a slow speed, unless the brain is sick.

Even for the guards who sit in the monitoring room and are responsible for staring at the monitoring screen, as long as there is no abnormality in the screen in front of them, it means that everything is peaceful.

So, Su Xinyuan, who was extremely fast, was like an undetectable whirlwind, and soon passed through one passage after another, and came directly to the central area of the first floor, where there was a central hall with an area of about a football field, and ten elevators with different loads leading to the second underground floor below, all of which were here......