Although he came to inspect the position and really needed to know the operation of the front position, Chen Xin didn't have any idea of going to the forefront trench.

Climbing up the fire observation post of the stronghold and using a telescope, Chen Xin can directly overlook the whole position. He doesn't need to run to the forefront of the position like a big soldier.

The position inspected by Chen Xin looks like an inverted "human" shape. The front cross is the forefront trench to block the attack of alien creatures. Even if you stand at a stronghold at least one kilometer away, you can still clearly see the fire of soldiers and hear the fierce gunfire.

At the back of a horizontal, two oblique trenches are not only the extension of the front trench, but also its fire supplement.

More heavy firepower was obviously arranged on the two obliquely deployed trenches. Chen Xin even noticed that they also dug artillery positions between the two trenches, and arranged mortars and flattened anti-aircraft guns.

However, looking at the appearance of those weapons, they should be old antiques pulled out of the warehouse. Most of them are from the cold war.

But I have to say that these old guys are still very useful. At least in this battlefield, these weapons designed during the cold war have more advantages in lethality than modern weapons.

This is not a retreat in science and technology, but a reduction in the power of modern weapons compared with those during the cold war.

Modern weapons emphasize accuracy and effectiveness. They pay attention to one hit and destroy the enemy at the least cost, which is also determined by the form of modern war.

But the weapons in the cold war period are different. Most of them are prepared for the possible three wars, more to meet the needs of large-scale war, and more emphasis on lethality and large-scale attack.

So on this occasion, the old friends of the cold war really played better than modern weapons.

After all, steel core bullets are much easier and cheaper than missiles to fight alien creatures. They are also large and full.

Seeing that these cold war era weapons are now widely used, Chen Xin can't help asking the major aside, "I see a lot of anti-aircraft guns arranged on the position. Are these old guys easy to use?"

"It's really easy to use. Flattening the anti-aircraft gun is very good for the lethality of alien creatures." the major nodded and explained to Chen Xin: "the firing speed of the old-fashioned anti-aircraft gun is not as fast as that of the modern anti-aircraft gun, but it's a bit rather than a disadvantage now.

After all, modern anti-aircraft guns may have fired hundreds of shells in a minute or two. Although the firepower is rapid, it can't last. What we need now is firepower that can last and output stably. On this point, the old things are better used. "

"I see. The output speed of modern anti-aircraft guns is really a little high." hearing what the major said, Chen Xin nodded slightly and wrote it down.

Chen Xin did not pay attention to this problem. When he was in China, the military of Yanguo did not have any trouble in this regard. He felt that when the weapon firing speed was high, it could naturally be replaced with an anti-aircraft gun with low firing speed.

In particular, the anti-aircraft gun is not the main weapon in the Dongting Lake defense line built by Yanguo. After all, the soldiers of Yanguo have a set of exoskeletons and heavy machine guns, and the firepower output brought by them is enough to meet the needs of the battlefield.

In addition, there are no flying units of alien creatures in Yanguo, so there is no need for anti-aircraft guns to fight mosquitoes.

However, as far as the European battlefield is concerned, it lacks the firepower configuration of ordinary soldiers with one heavy machine gun per person like Yanguo. They really need to use anti-aircraft guns as necessary firepower supplement.

Although the electromagnetic rifle provided by Chen Xin solved the problem that ordinary soldiers could not cause damage to alien creatures, although the penetration of the electromagnetic rifle was sufficient, its lethality could only be said to be usable, not color.

After all, in order to be compatible with European rifle bullets, electromagnetic rifles have some accommodation in caliber, and electromagnetic rifles mainly emphasize penetration. The killing caused by bullets themselves can only be said to have limited power for alien creatures.

Therefore, in this battlefield, the tactics of flattening anti-aircraft guns to hit ground units have become extremely effective and practical.

With those large caliber mortars, it constitutes the main heavy firepower strike force in the forward position, and it is also the main means of killing alien creatures in the European battlefield.

As for more powerful and caliber firepower, it is the 155mm caliber howitzer attached to the stronghold.

However, in order to protect the barrel and save shells, usually these guns will not fire. Only when the forward position is really unable to withstand, will they roar to support them and push back the attack of alien creatures.

Only before receiving the support of Yanguo, even with these heavy howitzers, the front line of defense is often in urgent need. Only with the support of air strike forces can we stabilize the front line.

Even several times, alien creatures broke through the first trench. It was only with the output of heavy firepower on the second trench and the timely support of the air force that they pushed the alien creatures back.

However, more than half of the soldiers stationed on the position were killed.

After that, this position encountered several similar situations, but later, with the fire support provided by Yanguo's land ships and fighters, the losses were smaller and smaller each time.

Recently, with powerful equipment such as electromagnetic rifles, exoskeletons and power armor, the combat effectiveness of the first trench has increased sharply. They have not been broken by alien creatures for a long time. Now even the situation of calling artillery fire support has become much less.

It can be said that with the blessing of Chen Xin, their defense line is becoming more and more stable.

But today, it seems that the attack of alien creatures is a little fierce, or they want to show it in front of Chen Xin, a big man. The soldiers in the forward position have called for artillery support for a long time.

Because the weather was too cold, all the guns were closely protected, covered with thick thermal insulation blanket, in order to avoid freezing or other damage to the guns.

After all, metal parts change in metal properties at a low temperature of tens of degrees below zero, but they are easy to be damaged.

Now they got the order to use artillery support. The artillery ran out of the bunker of the stronghold, quickly lifted the insulation blanket covered on the artillery, quickly corrected the firing data and prepared for launch.

At the same time, another group of artillery carried the shells to the gun position and completed the loading of the shells with the calibration of firing data.

Refusing the major's request to let him into the bunker, Chen Xin stood on the observation post and watched the artillery finish the launch preparation, then——

"Boom!" "boom! Boom!" "boom! Boom! Boom! Boom!" the God of war began his roar.

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