Ma Lan randomly placed chess pieces on the board, and Lei Zhen had to memorize each piece and put them back in their original positions within a minute.

It was on this small chessboard that Lei Zhen knew what it meant to be a fuzzy memory.

When the human eye sees an object, it will never convey the whole thing to the brain like a camera taking a picture, but has a choice of surname.

To use a simple analogy, it seems that we know what a person looks like and can recognize him at a glance, but if we give ourselves a pen and a piece of paper, it is difficult to draw that person's voice and smile. Because until then, you will realize that you may only remember that the man's nose is very high, his eyes are deep, his eyebrows are thick, and the lines of his face are hard and manly, but you can't put these elements together at all. Because the details you ignore are too much, too many, in other words, the image of this person, in your memory, is just a picture filled with local details and highlights, plus your own subconscious thinking, patched together!

This kind of vague memory is an instinct of living beings to reduce the load on their brains, but for a sniper who may be attacked by the enemy at a distance at any time, and will dance with the Grim Reaper at the slightest negligence, who dares to use words probably, probably, and like this on the battlefield?

When two snipers meet on the battlefield, they will be tested for their shooting skills, breathing control skills and ability to grasp the environment. It's no wonder that the Germans, who have always been known for their rigidity and rigor, were able to train the best snipers in the world!

By constantly memorizing randomly arranged pieces and putting them back in their original positions, it is a kind of reinforcement training that can overcome fuzzy memory. Of course, there are very few unforgettable geniuses in this world, after all, people's memory is limited, so a qualified special operations master, the best way for them to remember the battlefield terrain in the shortest possible time is to superimpose their memory with the topographic map they draw casually!

These methods are easy to say, but it is definitely not easy to apply them to the actual field and integrate them into your own instincts.

"I don't care what method you use, you have to be able to remember all the randomly placed pieces in a minute."

Malan: This is a high standard and strict requirements.

"I don't care how much time it takes you to do this, but it doesn't matter, you can soak in the mud and study slowly until you can pass my assessment."

No need to ask, this is the threat, the naked threat!

"But I think it's just your thunder shock, this first level of entry will definitely not stump you. Once you've passed the test and have a certain foundation, I'll teach you all sorts of tricks and techniques, and if you're really good at learning and improving fast enough to buy yourself time, I can even teach you how to make the simplest rifles and grenades yourself. ”

Ma Lan's trick is called luring to profit.

In any case, Lei Zhen was destined to sleep in that mud that night. Lei Zhen really didn't know that such a trench filled with mud and mixed with rotting animal entrails was called the "vomit trench" in the special forces, and it was a unique prop for them to welcome new recruits into the army.

No one can not vomit in such a trench, even if a very small number of recruits are strong-willed, but once someone can't help but vomit, a chain reaction will immediately form. Those special forces instructors are to strike hard at these young people with good quality, but also because they are excellent and arrogant, and let them lower their heads and show a modest and studious expression.

And these recruits have vomited together, and they have made a fool of themselves in public, so they will naturally have a feeling of sharing hardships from the bottom of their hearts, although mountaineering is very taboo in the barracks, but as long as the instructor guides them a little, it is easy for them to form a whole.

Ordinary recruits only need to soak for two or three hours at most in such an inhumane vomiting trench, and when they even vomit up the acid in their stomachs and wilt, the instructor will naturally let them out of the sea of suffering. However, Lei Zhen didn't play the cards according to the rules in the first shock education class that Ma Lan gave him, and he didn't vomit after soaking in it for several hours, and even ate his dinner in this kind of place.

In the face of such an outlier in the outliers, the perverts in the metamorphoses, what else is there to be polite about Ma Lan, a teacher?!

From this day on, Lei Zhen slept in this vomit trench every night. Of course, considering that soaking in mud 24 hours a day is definitely not an act that is beneficial to physical health, and it is necessary to carry out appropriate physical exercise, Ma Lan will suddenly appear in front of Lei Zhen from time to time, and ask him to jump out immediately, carry a wooden stake weighing dozens of catties, and run ten kilometers around the barracks.

People who have never had this kind of experience can never imagine jumping up and running with weights when their clothes are soaked in mud, and the feeling of being slippery and greasy all over the body. And after running all the way, as the sweat continues to seep out from the pores of the body that are not blocked, the body temperature continues to increase, and the slowly steaming smell is not to mention how exciting, the worst thing is that when you run to the end, your physical strength has reached the limit, and you must breathe a lot of air to avoid suppressing the throbbing pain that the lung lobes are almost exploding, no matter how careful you are, the mud mixed with sweat on your face will 100% of it flow into your mouth.

"We've had anti-chemical warfare, and that's really wonderful. No matter how hot the weather is, we must wear a gas mask on our face and undergo all kinds of training. Once we were sent to the desert for a twenty-kilometer cross-country run with gas masks, and the instructor gave a death order that whoever dared to take off the mask would immediately shoot. As a result, many people did not adapt to the desert climate, and when they were running, Sanchengren suffered from heat stroke, and after someone vomited from nausea, they continued to run under the watchful eye of the instructor, and slowly drank the things that were vomited into the mask. When they finally ran to their destination and could take off their gas masks, they immediately vomited again. At that time, we called ourselves cows, because in this world, only cows regurgitate, spit out what they have eaten out of their stomachs, chew it repeatedly, and then swallow it back again! ”

Lei Zhen was running with a wooden stake while listening to Ma Lan's words, and at this time, Lei Zhen finally gradually understood what special forces were. If you want to live longer than others on the battlefield and let the enemy die faster than yourself, what you want is to push yourself to the limit again and again on the training ground, and even the consciousness that you can take your life!

A week later, Lei Zhen was finally able to climb out of the vomit trench within a minute, with the help of his sketches, firmly remembering the position of each piece on the chessboard. Looking at Lei Zhen, who had been flushed with a water hose for more than an hour and still emitted a foul smell on his body, Ma Lan nodded, and she suddenly asked: "Lei Zhen, I heard from Regiment Leader Xie about your performance in the battle of the Four Elements Warehouse, in the eyes of ordinary people, you can be regarded as a sharpshooter." Tell me, how can I get my gun right? ”

"Steady!"

Lei Zhen replied: "A good shooter must maintain absolute stability when shooting with a gun, and only in this way can he complete accurate shooting." In order to make myself more stable when holding the gun, I often hang the brick on the barrel of the gun and then maintain a standing shooting position to strengthen my arm strength and tenacity. ”

"For a layman who has never had formal training, you've done pretty well. But with that alone, it's obviously a little too difficult for you to hit a target 800 meters or even a thousand meters away. ”

Ma Lan said: "Since you like to hang bricks under the barrel of the gun to train your arm strength and stability, then you should notice that as you breathe in, the bricks hanging under the barrel will shake slightly, right?" ”

Lei Zhen nodded vigorously, and the brick hanging under the barrel would shake, which showed that no matter how much he strengthened his arm strength and strengthened the stability between his body and the rifle, the barrel would still shake slightly, and when shooting at targets within two hundred meters, this small shaking was almost negligible. But if you want to snipe at a target 800 meters away, such a slight shaking will directly lead to the failure of the shooting.

"When you inhale, your chest expands, and when you exhale, your chest contractes, and in one breath, the gun you hold produces a slight upward and downward pressure. In other words, you've made a bobbing up and down that may be indistinguishable to the naked eye. So you have to learn to control your breathing! ”

"I've tried this, and when I'm shooting, I've tried to hold my breath and try not to shake my arms." Lei Zhen said honestly: "But later I found that when I practiced by myself, the shooting effect of my method was not bad, but when it came to the actual use, the effect would be greatly reduced." ”

Malan smiled, "You come with me." ”

Walking out of the room with Lei Zhen, Ma Lan pointed to the cross erected on top of a Western-style building in the distance, and said, "It is about a thousand meters away from us, can you see it clearly?" ”

Lei Zhen nodded, the target that Ma Lan chose was definitely not untargeted, the size and distance of the cross were just stuck at the critical point of their line of sight. Lei Zhen, who had just undergone a week of special training in the vomit trenches, had to concentrate all his attention in order to barely see all the details of the cross.

"Okay, now please hold your breath and keep looking at the cross."

After holding his breath for more than ten seconds, Lei Zhen involuntarily reached out and rubbed his eyes, because in his sight, the cross that could barely see the details clearly slowly blended into a blur in the distance in front of his eyes.

Ma Lan, who had been paying attention to Lei Zhen's every move, nodded slightly, she had to admit that Lei Zhen had once again given her a small accident. According to human physiology, when looking at a target that is at the critical point of sight, once you hold your breath, after eight to ten seconds, your vision will be attenuated by the decrease in the oxygen content in the blood. And it took a full twelve seconds for Lei Zhen to show a confused expression on his face, which showed that when Lei Zhen was holding his breath, the stability and physiological functions of his body lasted longer than that of normal people.

"Got it? After you hold your breath for more than a while, your eyesight will be affected, but usually the target you shoot is not beyond the limit of your eyesight, so you don't pay attention. When you practice shooting, you set the target yourself, so you know the approximate location of the target even if you don't have to look at it in advance. This way, before your eyesight decreases, you can pull the trigger and shoot the bullet. In actual combat, you obviously can't effectively regulate your breathing, when looking for and locking on to the target, you have already begun to subconsciously hold your breath, when you really pull the trigger, your vision is likely to have been affected, and directly lead to a slight deviation. ”

Lei Zhen nodded again and again, and what Ma Lan told him was the question he couldn't figure out.

"Here, I'm going to teach you a few techniques to adjust your breathing, so that you can get maximum stability in your body while holding your breath. First of all, you must understand that the reason why your vision becomes reduced is because of the effect of the continuous consumption of oxygen in your blood after you hold your breath. So before sniping at a long-range target, you'll need to take a deep breath to increase the amount of oxygen in your blood and maintain your best vision for as long as possible. ”

Ma Lan put the index finger, middle finger and ring finger of her right hand on Lei Zhen's left wrist, she silently counted the number of Lei Zhen's pulse beats in her heart, while staring at her watch, after the second hand on the watch circled around the needle disk, Ma Lan said: "No wonder you can keep your gaze stable for twelve seconds after holding your breath, the average heartbeat of a normal person is seventy-five times per minute, but you only have fifty-eight times, which has almost reached the level of a professional athlete." It's because your heart is more able to supply oxygen than normal, so you can hold your breath and still be able to keep your vision clear for longer. I don't know if you've noticed, but there is a short pause before you exhale the air in your chest cavity and inhale again, which is a very natural pause, at this time, you will naturally enter a state of breath-holding, and at the same time your body will get the most stable state. This natural breathing pause in a normal person has a time of two seconds, and if I am not miscalculated, you should have a natural breathing pause of two and a half to three seconds. ”

"Of course, it's very difficult to ask you to lock on to the target and shoot in three seconds. So you can deliberately hold your breath after exhaling the air in your lungs and entering a natural breathing pause. This gives you fifteen seconds of the most accurate shooting time, during which time you can constantly adjust your state until your body is in the most stable state, and then pull the trigger. ”

Facing Lei Zhen's shining eyes, Ma Lan smiled: "Excellent snipers, when sniping long-distance targets, especially when using rifles with sniper scopes for long-range high-precision strikes, will use this air-lung technique that prolongs breathing and natural pauses to achieve stability. As long as you practice diligently, I believe that you will soon be able to break through the bottleneck of your original shooting skills. ”

"I take a deep breath to increase the oxygen level in my blood, and then after exhaling the air, I deliberately hold my breath together and shoot a bullet at the target in fifteen seconds...... Oh, that's not right! ”

Lei Zhen Huo Ran turned his head, he looked at Ma Lan, and said: "When we broke through the Sixing Warehouse, you shot three searchlights in a row on the new garbage bridge, and those searchlights were eight hundred meters away from us. But when you get your gun in your hand, you don't have time to prepare, let alone take a deep breath and then exhale to use this empty lung technique. ”

"Yes, the empty lung technique provides maximum stability for the body, but at the same time, it also requires a considerable amount of preparation time, and it is only suitable for ultra-long-range sniping. But on a battlefield where the forces of the enemy and our forces are intertwined, the situation can be said to change rapidly, and we often meet the enemy in a narrow way, and fight an unprepared encounter. At this time, as a sniper, the biggest task is to suppress the light and heavy machine guns equipped with the opponent's fireteam with accurate and fast shots. In this kind of encounter, the distance between the two sides is not more than 400 meters at most, and when I was sure of the enemy situation and judged that the enemy and the enemy were about to exchange fire, I began to take a deep breath, and when I raised the rifle on my shoulder to form the most stable triangular support point, I already held my breath and could pull the trigger at any time. ”

Lei Zhen's eyes widened, "In this case, haven't you had time to spit out all the air in your lungs, let alone enter that natural breath-holding state?" ”

"Yes, in this case, I still have about half of the air in my lobes, so this breath control technique, which sacrifices some of my stable surname in exchange for flexible reflexes, is called the 'half lung' technique. If you have been able to consciously regard the rifle as a part of your body after a long period of hard training, and have an absolute confidence that once you raise the gun to shoot, you can hit it with one shot, and this 'half lung' shooting technology with flexible reflexes can achieve the high-precision sniper effect that can only be possessed when using empty lung technology. ”

Ma Lan looked at Lei Zhen and said in a deep voice: "With your talent and understanding of shooting, you can master the empty lung technique in less than a month, but this kind of half-lung shooting technique, you still need at least two years of training, and you need to shoot at least 5,000 rounds of bullets on the shooting range to truly master his true meaning." You must know that on the battlefield of close combat, a sniper with a weapon that can only shoot can only be shot, once a shot misses, it often represents death! ”

(To be continued)