In fact, to understand the influence of disguise, we must first understand a conceptual part.

Angle fraction is actually a geometric concept, 60 angle fraction is equal to 1 degree. The maximum resolution of a human eye is 1 angle fraction.

If there is an incongruity between the camouflage target and the surrounding environment, a person with normal vision can distinguish objects of 2.5 cm in size from 90 meters.

Even at a distance of 180 meters, as long as your vision is normal, you can also distinguish objects of 5 cm in size. At a distance of 360 meters, the resolution accuracy of naked-eye observation will be expanded to 10 cm.

But even so, the observation ability of the naked eye is still very terrifying.

By analogy, if the target's observation distance is too far, for the observer, when the angle within the entire field of view is less than one angle, the naked eye cannot distinguish the lurking disguiser. Computer terminal::/

While distinguishing distances, the disguiser must also be familiar with color matching.

This is a big problem and a fatal problem.

For example, if a black square with a side length of 2.5 cm is placed on a white background, the person can clearly distinguish the naked eyes from a distance of 90 meters.

Two factors are considered overlapping, and in this regard, refer to the experimental results of relevant aspects

At a distance of 460 meters, it is difficult for humans to distinguish a target of 12 cm inches.

460 meters does not seem to be a very long distance for a sniper.

Because the theoretical range of many sniper rifles is 800 meters, the most basic one can be used to increase your sniper distance to 500 meters, making the enemy unable to recognize you.

However, human technology greatly extends this value. It is very common for a general observation telescope to be 20 times. With a magnification effect of 20 times, it can theoretically achieve the goal of 0.25 cm at a distance of 460 meters. Even if it is not good, it is easy to distinguish between 0.5 cm and sprinkle water (easy).

After understanding this, Zhuang Yan also understood that in the past, when he was training and exercises in the field troops, his comrades liked to insert some grass on the steel helmets, or use plants to make headbands and wear them on his head. At that time, everyone thought that it was good to disguise like the war movies I had watched before, right?!

But after coming to the special forces, Zhuang Yan discovered that this simplest disguise was so fragile that it was vulnerable to the observation hand.

Just like Zhang Yi and Chai Yifa's team just now, they were all covered in auspicious clothes, and their faces and hands were painted with camouflage oil paint. If it were the field troops in the past, this would be awesome camouflage technique.

Unfortunately, in front of King Han and a group of comrades from Class B who were also special forces, they were discovered after climbing to a distance of 800 meters.

Just because the black on a pair of combat boots exposed the position, I think the telescope is too threatening to snipers.

After understanding this, Zhuang Yan understood why the soldiers with observation instruments in the sniper target sequence table are priority levels, because that is the enemy's eyes. If you kill the observation hand, the other party will become blind.

Now, it seems like nothing can be done.

Zhang Yi and Chai Yifa's group is over. In this jungle, four groups of people in Class A, including himself, survive.

Time passes slowly, and the last hour and twenty minutes are left.

Solemn can only wait.

No, no.

A sniper must have better and more certain patience than a normal person.

If the enemy does not move, I will not move.

It is like a snake hiding in the dark, staring at you quietly, looking at you, and suddenly attacking when you reveal your flaws, biting the vital points.

The two of them were lying on the left and right behind the tree. After a while, solemnly said, "Old Yan, give me the observation mirror. My scope is not very useful, and the field of view is too narrow and I can't see clearly."

Seriously hand the telescope to Son-Sheng.

I slowly scanned the surroundings and looked at the sky.

Fuck it!

The weather doesn't seem to change.

It seems that Zhang Guoyi's group was anxious just now. It is probably because they didn't think about waiting for the sky to get dark, but because they couldn't wait and felt that the weather would not change, so they just took a risk.

As a result, with the powerful observation and monitoring capabilities on the observation deck, he immediately became cannon fodder.

Zhuangyan doesn't plan to act rashly now.

Isn't there still more than an hour?

Then wait.

Sometimes, when sniping and sniping are often the ones that are about patience.

Whoever has better patience and controls himself, whoever sees the opponent's flaws first will win the showdown.

Although Zhuang Yan feels that he really doesn’t have much chance of winning to win in the confrontation with Han Zibao, who knows?

Class B and Han claimed that although they had telescopes, they had different angles.

Han claimed that he could not always stare at one angle.

As long as King Han’s attention is not on the other three sides, he may break through.

He felt that he should find the weakest place to start.

Now, he prides himself on the observation deck from his telescope, rather than looking at the surrounding scenery.

The terrain and scenery here have been deeply imprinted in his mind, and he remembered everything that little shrub looked like.

Now, what we need to look at is the flaws of Class B and Han Zixiu and others.

If you are a human, you will have flaws. This is solemn and firmly believe in.

Although Han claimed to be the captain and a veteran awesome sniper, tigers also doze, right?

Besides, it's so big here, he's never a robot, with eyes behind his head.

Zhuang Yan had an idea in his mind, to avoid Han Zixuan's sight and find a point of entry.

Class B is a team member who joins the team at the same time as himself. These people are solemn and can be coached and measured at the same level.

The biggest problem lies in King Han, Zhang Zhiang and Yan Guanjun.

One of these three people is a captain, an officer, and an expert; the other is a parachute expert and an eight-year veteran, who is also a difficult person to mess with.

Finally, it’s Yan Guanjun.

Yan Guanjun has three years of military service, just like his own squad leader Luo Ping'an.

Based on solemn observation, each of these three people occupied one side and observed with other team members.

Occasionally, I will look back, look at other directions, and change my observation position.

In this way, just like the patrol team in the camp, if you want to go in and touch the sentry, you have to avoid the patrol team. It is best to find the gap for their handover.

As long as you hand over the shift, there will be room for you.

The three great men looked at three sides, but there was only one person in Class B who was monitoring it. Even if the three people occasionally changed, there was definitely a time difference.

A bold idea suddenly took shape in the solemn mind.

Last night, I don’t know who talked about a long-standing rumor in the VIP subscription group. Special forces like to use sanitary napkins as insoles when marching.

I don’t know where this rumor comes from, but it has been rumored on the Internet, as if using female aunt scarves as insoles, it seems very awesome. I have heard this rumor for so many years, but I don’t agree.

Because I was too lazy to explain, at least during my service, whether it was survival in the wild, training in the long distance or running for a long distance, I never tried to remember that I had never tried to pad my own soles with my aunt's towel.

We discussed it for a long time last night, and I analyzed the unreliability of this rumor based on my own experience.

First, it is true that the aunt's towel absorbs water, but it will swell. You can imagine that your shoes are originally very close to your feet, but after taking the aunt's towel, it will swell after absorbing water, and you will get uncomfortable. Long-distance walking is not conducive to the blood circulation of the feet. As a soldier, you know that long-distance training is the most likely to swollen feet, so generally your shoes will relax a little. Put your aunt's towel? Don't even think about it!

Second, for outdoor training or long-distance raids, training is not about walking on flat roads, not on roads, or on mountain roads. There are also various jungle shuttles along the way, and sometimes you have to cross mud rivers, swim across, etc. May I ask what it feels like when I put my aunt's towel in the water and soaked it in. I haven't used it before, but I can imagine what it feels like.

Third, this kind of thing is not allowed in the internal affairs of the army. I think the most famous thing is that the US military condoms and muzzles were put in the past. This is scientific and no problem. But if my aunt's scarf enters the military camp... I can't imagine this state. The picture is too beautiful... I dare not imagine. In strict troops, there are strict requirements for the placement of items in the storage cabinet. For example, when we were folded into small squares, books and notes, belts and armed belts, and the placement of fragmented items, all had strict requirements, which were strictly for officers to check them all year round, especially the most terrible thing.

Point verification is divided into regular point verification and irregular point verification. Regularly once a month, I don’t know if I don’t know if I am happy. We used to have a staff officer from the military superiors. They suddenly drove into the camp, found the captain, and then blew the emergency gathering whistle directly. Everyone came out to line up and stand. The staff officers and inspectors searched the room one by one to see if there were any prohibited items in the cabinet (because our unit has been shooting live ammunition for a long time, so we are afraid that soldiers will retain and privately store ammunition, which is the key).

However, illegal items, such as radios, bbs, etc., are also confiscated, and they will be criticized and punished in serious cases. You can imagine that the superior inspector came over to find a lot of female aunt scarves in the drawer. What expression did they look like?

Is it funny to think about it?

Later, a few group members in the group who liked to hike and climb mountains and roads discussed for a long time. Among them, the "storyteller" liked to hike. He also used an aunt's towel to do experiments. He took the "easy to use" that was not rumored. His original words were that when he first put it in, it was quite dry (of course it was dry! Otherwise, how did the advertising slogan be written?), and then he stepped on it softly (the texture is good! Who bought the rough and rough one? Then he called the aunt's towel? It's sandpaper.), and then started hiking, and various slips, curls, and separation from the soles of the shoe made it uncomfortable... (It's exactly the same as what I imagined)

So, I can't make a conclusion, but I declare that I have never seen a unit, including the people in a special forces brigade that practiced and trained together, who used any aunt's scarf as insoles. Those who spread this rumor with relish, or some soldiers who have served as soldiers but have not been in the special forces said that they have also used it for the sake of face. Don't talk about it anymore. This kind of thing will really make veterans laugh after hearing it.

Later, the group members in the group were still old (I forgot, don't hit me...) and said that the earliest rumors were that the mold soldiers went to the hot areas to fight, putting their aunt's scarf in their helmet to absorb sweat, keeping the helmet dry! Later, somehow, there was a rumor that the aunt's scarf was used as insoles...

Put it in the helmet? This is reliable! When sweating a lot, sweat will penetrate into the eyes. It is easy to blink when aiming, and lose the opportunity to shoot. There is nothing wrong with it!

I agree to put it in the helmet, but in our Chinese culture, I think that something is on my head... Maybe Hawk's beliefs are different, and people believe in the Virgin Mary... If I were to me, I would rather put my daughter's diapers...
Chapter completed!