They waited until night in this small wood. The laborers on the square have been brought back, and the surroundings appear to be a lot more empty. Only some military police on duty are moving nearby.

But people are all inertia. Unless the situation is tense or something is "spotted" by superiors, when the patrol swam to the boundary of the area of ​​responsibility, most of them are already absent-minded. When they went to the camp to unload their equipment and smoke a cigarette, some of the more slack-disciplined troops might even turn back in the middle and find a safe place to fish.

And even if the route of the mobile patrol changes every day, most of them will not leave the road or other fixed routes. After all, few people like to drill around in the grass or woods. Therefore, as long as the infiltrating forces act carefully, avoid all known security locations detected, and keep an eye on the surrounding conditions, they can probably move safely.

Lin Rui took the brethren all the way back to the Federal Office, and then they worked separately. Sergey, who is good at solo infiltration and intelligence gathering, touched the Federal Army Building. Others followed Lin Rui further, stopped outside the secret agency headquarters, and began to focus on the surrounding fixed outposts and mobile patrols.

Since keeping their whereabouts concealed is their prerequisite, Lin Rui and the others still spent a lot of effort to avoid being discovered. They are covered in black combat uniforms, which are a good camouflage color at night. Of course, in addition to pure color, the camouflage is more important to destroy the outline. In the natural environment, simple straight lines and metal reflections represent man-made objects. The equipment on the personnel must be fastened and secured. They must not contain noise or leave obvious footprints, otherwise they will be trailed by the garrison. Then, it will become a deadly clue.

Lin Rui and others used the method commonly used by the British Special Air Service Corps SAS. Bunching sacks on the soles of military boots can not only blur the footprints, but also make the foot sound smaller. A group of people followed Lin Rui to the outskirts of the secret society headquarters. Before Lin Rui suspected the location of the minefield.

Although all kinds of new mine detection devices have been released, according to experience, the most reliable mine detection devices when passing through minefields are mine detection rods and human hands.

In order to prevent a landmine from reimbursing the entire team on the spot at the same time, Lin Rui kept a certain distance between the players, and at the same time, the players behind should follow the traces left by the comrades in front. As a leading soldier, Sausage must be very careful to use a mine probe to test whether there is any abnormality under the ground. If there is any movement, he must gesture to stop the team from moving forward. The next step is to mark the location of the mine and go around. For safety reasons, Lin Rui did not let him dismantle the mine fuze easily.

The fuzes of modern landmines are becoming more and more cunning. More and more anti-tank mines or anti-personnel mines have anti-disassembly design. With time limit, any landmine or booby mine should be bypassed if it can be bypassed. . But Sausage found no mines. Lin Rui wondered to himself, could it be another false alarm? This is unlikely, otherwise why would the daytime patrol deliberately avoid this area?

Just when he doubted his own judgment, Sausage found another trouble, a trip-type flares.

Although this thing won't kill people, a flare that hangs high in the sky will put the entire team in danger. Fortunately, Sausage has rich experience, and always pay attention to whether there are suspicious tripwire trigger devices under the feet when traveling.

Looking at the tripping flare that Sausage found, Lin Rui also had lingering fears, and said in a low voice, "Be careful. If you are not careful, if you really let the flare hit the sky, the only thing everyone can do is stay low. Keep your posture still and close your eyes to save your night vision, so as not to attract the attention of the enemy defense sentry, because the sentry's eyes are most sensitive to moving things.

When the flares are extinguished, the enemy garrison units attracted by the flares will temporarily lose their night vision capabilities because they look at the bright light. At this time, the team members with night vision capabilities can quickly seek cover or retreat. But in this way, we are completely exposed. "

Sausage found a trip-type flares in front of him, and he whispered, “It should be an expert who arranges these, and the location of the tripwire is very particular. Generally speaking, the setting of the low tripwire trigger device required in the training teaching , The height is mostly a palm or half of the forearm from the ground.

A place where the palm is high is exactly the position of the toe of the high-waisted military boots, and it is generally impossible to detect what is being kicked. The height of half of the forearm is exactly the position of the calf, and there will be no sensitive perception when marching for a long time, and clothes and pants may also be scratched. But this person who set the tripwire is very clever. The traditional tripwire he used, but underneath it is a dark wire similar to a spider web structure. When a thread is affected, it will also pull the surrounding number and dark threads, causing multiple flares to lift off. "

"No wonder those patrols don't go here. These things are specially used to deal with sneakers." Lin Rui whispered.

The front is the barbed wire fence. Generally speaking, if the barbed wire or fence is energized with high voltage, there will be small animals that accidentally get electrocuted nearby, and there will be frequent sparks between the energized joints of the barbed wire and the insulating material. There is a slight high-frequency buzzing sound when you listen carefully to the high-voltage wire fence. You can also use a small damp wooden stick to approach it.

After Lin Rui and others determined that the barbed wire was not powered on, the next thing to do was to check whether there were tripwire trigger devices and other monitoring or alarm devices around. Especially a motion sensor motion sensor. If the designer is shrewd, motion sensors will also be installed on the wire fence and on the other side, which is more annoying.

After inspecting the sausage, I just wanted to break the barbed wire. Lin Rui stretched out his hand to stop him, "Unless this is the final stage of the mission or the situation is extremely urgent, the team must make a way out immediately, otherwise, don't destroy the barbed wire casually. If there is a regular mobile sentry that finds it is damaged. It’s easy to infer the time of intrusion from the barbed wire fence. From the layout of the minefield and the depth of the mobile patrol’s responsibility area, we can determine the direction and distance of our penetration. And the best way to deal with barbed wire is not to break The net may be turned from above, but drilled from below."

Sausage nodded, but drilled under the barbed wire and needed to face the deliberately plowed ground, which usually required tripping devices and booby traps. Lin Rui and the others took a back-down posture, with their equipment placed on their chests and cautiously lying on their backs. This not only avoided leaving footprints on the soft ground, but the resulting marks were also blurry. Can reduce the probability of being discovered by patrol members.