After Zhan Lan opened the mental power scan, he sent the results of the scan to everyone through the psychic chain, judging from the scan results, the entire foot of the mountain was already covered with battle bugs, densely spreading out dozens of kilometers away, and there were countless bugs still walking through the underground caves, among which in addition to the battle bugs, there were also fire-breathing bugs, and there was a giant bug with a thick shell all over its body and forelimbs that looked like two huge pincers.

It's just that although the bugs are overwhelming, due to the terrain restrictions, they can only attack upwards along that road, just ......

"......, there are a lot of insects, they are densely pounced, and I won't talk to you anymore, I will naturally ...... That's a lot of bugs! ”

Hearing the overlord's words, Li Xiaoyi hurriedly ran towards the position at the entrance of the mountaintop, if even the overlord would be nervous, these ordinary paratroopers would probably be even worse.

When Li Xiaoyi came to the position, sure enough, the scene of countless insects swarming on the mountain road caused great panic to the paratroopers in charge of defense, everyone pulled the trigger and frantically poured ammunition towards the insect swarm on the mountain road, although the momentum was huge, but looking at the past, although it seemed that the insect swarm was suffering heavy casualties under the fire of the paratroopers, it was really a drop in the bucket to compare the huge number, under the impact of the insects one after another, the distance between the insect swarm and the top of the mountain was shortening.

"Has the tactical level of this world degraded to the point where only individual tactics remain?" Looking at the scene in front of him, especially when he found that the officers and non-commissioned officers on the position performed no different from ordinary soldiers, Li Xiaoyi couldn't help but be surprised.

Although he had already fought with the paratroopers against the battle bugs, they were all encounters, and the attack methods of the battle bugs were only hand-to-hand combat, and the paratroopers could effectively kill the bugs by lining up in a fire line, so Li Xiaoyi did not pay too much attention to the tactics of the paratroopers.

However, the shift to positional defense is now carried out, and defense is different from offense, and defensive operations are more of a technical task than the courage required for attack, and it needs to be carried out according to the lethality and characteristics of different weapons. Meticulously divide the fire range, killing range, firing distance and shooting method of different weapons, and even designate the fire kill zone according to the terrain to cause maximum damage to the enemy.

But here Li Xiaoyi saw nothing, except for crazy shooting. It's crazy shooting!

"Bang Bang!"

With a few gunshots, the overlord looked around with a smoking gun, and in front of him were several soldiers lying in a pool of blood, and when the soldiers around him were stunned, he roared loudly. "Shoot according to the methods taught to you, who dares to shoot indiscriminately and waste ammunition...... Military disposition! ”

It seems that the overlord is also in a hurry, the level of this group of paratroopers is too poor!

But even with the overlord's arrangement, Li Xiaoyi still saw the paratroopers' rifles and machine guns firing together, and the sniper rifles were also non-stop.

"Chu Xuan, send all the squad leaders of the second wave of defense troops, I'm afraid we have to start making up lessons from squad and platoon defense tactics."

"First of all, defensive battles should specify the scope of the mission, ensuring that each group of soldiers has its own defensive area. In order to avoid excessive density of firepower and lack of firepower caused by soldiers shooting at will, "Li Xiaoyi took a large group of non-commissioned officers and a few officers, in the open space next to the defensive position, pointing to the insect swarm and teaching urgently, fortunately, they will also fight here in a while, and it is not a waste of saliva.

"When shooting, it is necessary to specify the order of the firing target and the firing distance according to the characteristics of different weapons, for example, if a sniper rifle has the longest range, it should fire first and shoot the target with accurate fire. And focus on shooting high-value targets, such as fire-breathing bugs and other bugs, that is, to hit ordinary bugs, and also aim and then fight. Don't be like a rifle, just like that guy. Li Xiaoyi said as he pointed to a sniper next to him who was shooting like a firecracker.

"Then, when the bugs are in range of the machine gun, the machine gun suppresses the target and destroys the bugs at as long a distance as possible. Reduces the pressure on the rifle. ”

"No matter how close the bug gets, after it enters the range of the rifle, it should be the time for the rifle and the light rifle to exert their firepower, instead of shooting at the same time as just now, where the rifle is wasting ammunition at a long distance, and the machine gun fire at close range is blocked by the bug corpse, and the killing effect is reduced."

"In addition, machine-gun positions should be selected in a higher position to maximize the firing range and at the same time provide fire cover for the forward positions."

"In short, the core of defensive warfare is to make every effort to exert your own firepower and give the opponent maximum damage, understand?" Li Xiaoyi finally shouted to the non-commissioned officers and officers in front of him.

“…… I don't understand much. ”

“…… It doesn't matter if you don't understand, you'll understand it after a fight. Hearing this kind of answer, Li Xiaoyi was also extremely helpless, the so-called tactics are condensed by countless actual combat experience, which involves all aspects of the content, that is, to learn specifically, I don't dare to say that I understand it for a year and a half, let alone tell it again and again, plus this world doesn't even have this tactical regulations, even if you want to sharpen your guns in battle, there is no gun to grind......

While Li Xiaoyi was lecturing the backbone of the second wave of defense forces, Overlord, Wang Xia, and Zero Point were all assigned different tasks.

Zero Point naturally gives full play to his strengths and tells all the snipers about the sniper course, but at this time it is too late to talk about the technology, mainly to talk to them about the selection of sniper targets, so as to save these guys from turning into semi-automatic riflemen at that time.

The overlord instructed the soldiers to disassemble the shotguns hanging from the rifles to make it easier to distribute, but nearly half of the soldiers on this hill were unarmed. In addition, it was also arranged for people to remove the armor plates on the soldiers' bodies, although the standard military uniforms of these soldiers, although they were said to be wearing armor, but they were like paper paste in front of the fangs and claws of the insects, and they were useless in addition to hindering their movements.

Wang Xia was assigned to study the grenade, focusing on getting something that could throw the grenade farther, in Li Xiaoyi's words, "You can just get a slingshot, as long as you don't blow up your own people!" ”

And Rogandau was also sent out to teach the paratroopers, shoot!

Because the paratroopers in this world are equipped with helmets connected to firearms, the requirements for shooting posture are not too strict, and the result is that waist shooting has become their usual shooting position, even when shooting in a lying position, they do not pay attention to shoulders, and the result is that under the influence of recoil, although relying on the aiming system can get a good starting hit rate, but the follow-up hit rate is miserable.

If it's against human soldiers, it's not a big problem, with the power of these weapons, it's almost the same as taking a shot, but when facing a target with tenacious vitality like the Zerg...... (To be continued.) )