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In the blink of an eye, Bai Jingyan has served for a week, and this week gives him the feeling of entering a university class, and he is full of various courses every day, not only to learn Zergology, combat theory courses, equipment rating courses, but also combat skills training and carrier skills combat training. The former is theory, the latter is practice, giving Bai Jingyan the most intuitive feeling that this is service, this is to relive college life!

According to Bai Jingyan, the soldiers in service are divided into different levels, so far, there are a total of six levels, to put it simply, it is equivalent to the setting of military ranks a hundred years ago, but it has been simplified by ten: they are C-level, B-level, A-level, S-level, X-level, XS level six military ranks, each level of military rank, and divided into three sub-grades, such as B-, B and B+, in Shirai Yan's understanding, the concept is equivalent to quasi-deputy, deputy and full-level cadres.

At present, Shirai said that their rank is considered a C-level cadet, and only when they reach the rank of C-level can they be qualified to be called "soldiers" and can officially enter the front line to fight.

It stands to reason that reaching the C-level rank has become the top priority for all the next students, including Bai Jingyan. In half a year, there will be a C-level exam waiting for all of them, and the content of the exam is the five subjects that they have learned on a daily basis.

So the students who had just passed the assessment and thought they could relax began to get nervous one by one. There are clear regulations: Only those who have reached the rank of C or above can have the power to control the "core of enemy annihilation" on a daily basis. In other words, if you can't pass the exam, you can only control the "enemy annihilation core" in the mecha training room.

Just imagine that if you don't pass the exam, when other students can freely summon mecha to run around the street, the people who haven't passed are silently enduring everyone's ridicule, staying in the building and studying these boring subjects, no one can stand it.

When there are no classes on a daily basis, the students discuss nothing more than these topics with each other. Early this morning, Bai Jingyan, who had just come out of the cafeteria, was on his way to the mecha training room.

He followed Dong Mo. After beating Bai Jingyan to show everyone his super martial arts, Dong Mo completely regarded Bai Jingyan as his big brother. He came to fetch hot water in the dormitory, and he also came to fetch white porridge in the canteen. In short, he completely regarded himself as Bai Jingyan's little brother, and without the former's instructions, the latter could help him solve a lot of daily chores with a good look.

At first, Shirai Yan thought it was a bit exaggerated, thinking that in the university of his time, such a thing would only happen to a beautiful girl. He remembered the good-looking and popular girls when he was in school, and he was followed by a bunch of suitors, and when he wanted to eat, someone brought takeout, and when he was studying for exams, someone handed him notes. Looking at Bai Jingyan's current living state, it is not much different from it.

So it is equivalent to, unintentionally, I picked up a "beautiful girl trial card". As for what the deadline is, Bai Jingyan doesn't know, maybe one day when Dong Mo is tired, he will no longer pester himself. However, he doesn't intend to repay this kind of thing, since it doesn't have any effect after stopping it, let's let it be.

He walked into the training room, took out his enemy destroyer core, and fixed it according to the specified position - after a week of training, he has now mastered a series of operations proficiently, until he pressed the start button of the enemy destroyer core, and a tingling sensation passed through his left arm, flowing all over his body.

If you look closely, you can clearly see countless tiny needles poking out from the bottom of the core machine, directly penetrating the protective suit, and piercing into Bai Jingyan's muscles. These tiny needles are used to fix the machine, and the second is to deliver a large number of strengthening drugs to the user's body, these drugs have almost no side effects, and can greatly improve the musculoskeletal system of the operator in a short period of time.

The purpose of this is to strengthen the user's physical strength, otherwise even with the blessing of mechanical high strength, it will not be able to compete with the powerful and ferocious Zerg; The second point is that if you want to control a high-intensity mecha, good physical fitness has naturally become a key foundation.

In an instant, off-white shoulder armor and heart goggles made of high-alloy fibers appeared on the surface of his body, and the clothing on his lower abdomen was a silky fabric that seemed to be as smooth as water, and the silk fabric was covered with a troposphere of particles, which could effectively resist deadly attacks.

Bai Jingyan moved his muscles and bones and got ready. The mecha is the true appearance of the complete unfolding of the core of the enemy, and this one by Shirai Yan is called "Guardian III", which is the latest entry-level style developed five years ago, and the C-level student general-purpose type.

At this time, Bai Jingyan's hands were covered by a pair of white gloves, and he clenched his fist, and a trace of electric arc flashed on his glove, making a crackling sound.

This glove is his main weapon, and the mecha is also equipped with long-range firepower, which can be described as both near and far, and has complete combat effectiveness.

In front of his eyes, a huge virtual projection slowly appeared. There are all kinds of meters in it, including his current physical condition, heart rate, location, and a series of data are all under his control, just like the high-tech in the movies he watched a hundred years ago, and like the personal information section of RPG role-playing games.

At the bottom of the board is his name, as well as his rank as a C-Class cadet, and on the last line, his name for the core of the enemy: "Guardian III, Version 1.05"

At the top of the center, his current combat power is displayed: 30. Underneath the combat power, there are three energy gauges:

The first one is red, which represents the current durability of the mech; The second one is yellow, which represents the current power left in the mecha; The third one is gray, showing an unlocked state, Bai Jingyan clicked on it, and then a description page popped up.

The first line of "XP bar unlocked" reads.

"Note: When you pass the C-exam and officially become a member of the Squad C-rank, you can unlock the experience bar."

Line 3: "Q: How do I earn XP?" ”

"A: Experience points can be obtained by killing Zerg, and the experience points obtained are also very different depending on different types of Zerg, please refer to the Zerg Encyclopedia for details."

There is a link next to it, and Bai Jingyan knows what the Zerg Encyclopedia Illustrated Book is. This was the main content he learned when he took the course of Zergology. Now is not the time to open it, Bai Jingyan continued to look down.

"Of course, you can also get a lot of experience points by receiving bounty missions, participating in troop operations, and completing epic Zerg monster kills."

Seeing this, Bai Jingyan smiled helplessly, how can this setting be the same as the game he played a hundred years ago?

"Q: What is the use of XP and what can I do with it?"

"A: When your experience bar is saturated, one of the conditions for promotion to rank has been met. For example, to upgrade from a C+-level rank, you must ensure that the C+-level account experience value is saturated before you can be promoted to C+. ”

So this thing is actually equivalent to war exploits. Shirai Yan understood. After going to the battlefield, the experience value becomes equivalent to the battle exploits captured, and it is not surprising that people who kill more insects will naturally have great combat exploits and be promoted to military ranks.

During this time, his attention was all focused on this, but he didn't pay attention to Dong Mo's whereabouts. He suddenly realized this, looked around, and found that the mecha training room was empty, and the silence was somewhat terrifying.

What about Dong Mo? Although Bai Jingyan sometimes finds him annoying, he is also the companion who appears most frequently around him at present. As social animals, humans sometimes prefer to be alone for a while, but most of the time, they still want to be accompanied.

He vaguely remembered that this guy had said that he had a bad stomach on the way to the training room, maybe he ran to the bathroom, right? He thought to himself, and he didn't care. It's just that it's only eight o'clock, and there is still an hour before the start of class.

For an hour, let's practice here for a while. Bai Jingyan thought about it, and walked to a dynamometer, he took a deep breath, and punched the dynamometer, and on the latter's screen, the number representing strength was flickering wildly.

One punch down, close to two hundred kilograms, still not using all his strength. Bai Jingyan nodded, the strength of this mecha's increase in people is not ordinary.

While sighing, he suddenly heard a soft sigh. Bai Jingyan turned his head suddenly, "Who?" ”

It's not that no one will appear here at this time, but this sigh made Bai Jingyan feel in his heart that the person who came was not someone who belonged here, and immediately became vigilant.

An old man with almost bald hair on both sides and a scarred face walked out of the shadows, Bai Jingyan was suddenly stunned when he saw his small eyes, this person he was familiar with, it was the old man Jin who disappeared a week ago.

"Jin Lao?" Bai Jingyan was taken aback, "Are you here?" ”

For the sudden appearance of this old man, Bai Jingyan was a little surprised. He was also worried that something would happen to the old man on such a cold day. But now it seems, everything is fine.

"Shh Jin Lao made a boo gesture and slowly walked in front of him. "You kid might ask me where I went that day, but I'm going to tell you it's not the time to talk about it." Jin Lao walked around in front of Bai Jingyan with his hands behind his back, "Now that you have also come into contact with the weapons of this world, although you are still a C-student, you can be regarded as stepping into the formal." ”

"Uh." Bai Jingyan originally had a stomach to say, but it was all about Jin Lao himself. But Jin Lao didn't let him say it now, and for a while, Bai Jingyan didn't know what to say.

However, Jin Lao didn't seem to intend to listen to Bai Jing's ramblings, he raised his head: "It's useless for you to practice like this, there is no skill in this level of mecha." After saying that, he took out a chip from his pocket, "This thing is for you." ”

Bai Jingyan took it, and saw that it was something like an SD card from a hundred years ago, very small.

"You keep this thing, you can't lose it." Jin Lao instructed.

Bai Jingyan was a little confused, but he still nodded, "What is this?" ”

"In case of danger, insert it into your enemy destroyer core." Jin Lao said, "It can only be used when you encounter danger, remember." ”

Bai Jingyan is even more confused, this picture... How does it feel very familiar, like the scene of Guanyin Bodhisattva giving Sun Wukong three life-saving hairs... But Jin Lao... Isn't he an old janitor, how did he start doing Guanyin's job?

Before he could fully figure it out, Jin Lao left. By the time he reacted, Jin Lao had completely disappeared. He slipped away so fast that there was no shadow of him even in the corridor outside, as if he had come through a wall and gone through a wall.

"Big brother, big brother?" Immediately after, Dong Mo's voice came from outside, he sounded a little weak, but immediately pulled Bai Jingyan out of his thoughts.

"The food in the cafeteria is poisonous." Dong Mo said, "I'm all collapsed!" ”

"I ate with you, why am I okay?" Bai Jingyan frowned, "Your immunity is too poor. ”

"Maybe I caught a cold last night." Dong Mo scratched his head, "But then again, I just heard the news that outside in Madrid City, the temperature has dropped to minus sixty degrees." ”

"-60 degrees?" Bai Jingyan's scalp is a little numb, minus 60 degrees? If you don't have protective clothing, it will freeze in less than a minute, right? "What's going on out there?"

Dong Mo shook his head, it's not a good thing anyway. At this moment, the handheld computers of the two people all rang, and a hurried voice came from inside:

"All personnel, all personnel, please equip the core of the enemy annihilation, immediately come to the central area to assemble, immediately come to the central area to assemble!"

The sound is cristina. As the core of the entire city of Madrid, artificial intelligence has her presence in every institution, and of course, in the military base where Shirai Yan and they serve, is no exception.

"Something's wrong!"

Bai Jingyan's intuition told him that something big had happened this time.

As for how big it is, he doesn't know how big it is. Of course, he doesn't have a standard to measure the severity of time. However, he had a strong feeling that the Zerg would soon meet him.

Bai Jingyan closed the core of the enemy annihilation, and hurriedly came to the "central area" with Dong Mo. By the time they arrived here, the spacious and bright hall that Bai Jingyan had memorized had become quite crowded.

White Rose was counting the number of people with an anxious face, and when she saw the two of them rushing over, she didn't say anything, just motioned for them to stand up. The scene was no less noisy than the vegetable market at the beginning of the twenty-first century, Bai Jingyan and Dong Mo had to put their mouths to their ears when they spoke, otherwise they couldn't hear them at all.

Before they could figure out what was going on, they heard a loud bang of machinery. At the top of the central area hall, the huge glass protective window was slowly raised. Suddenly, an extremely strong cold wind "swished" into the back of everyone's heads, and Dong Mo was even more frozen and almost jumped.

"Hurry up and open the core of enemy annihilation!" Bai Rose's hurried voice came, and the students present pressed the start button of the enemy annihilation core one after another, and suddenly, all the cold air around them was isolated.

Although it is not the core of the enemy destroyer, ordinary protective clothing also has a cold-resistant effect, but it is only effective within the normal temperature range. And minus sixty degrees Celsius is far beyond the normal range, and only the mechanical armor stomach summoned by the enemy's core can ensure that Bai Jingyan's body temperature is constant.

At this time, those veterans who seemed to be much older than them, and almost all of them had a C-level or higher military rank, had flown out from the gap at the top one by one, and each of them had a rocket propulsion power plant behind them for them to fly, and the black C+-level enemy destroyer core "Watch" looked like a flock of crows collectively going out from the nest to forage for food.