68 cluster grenade

Cao Yu set up two lines of defense in the cave.

At this time, there were too many invading monsters, and a large number of black animals were blocked. Even if everyone fired with mg42 universal machine guns, they could not be eliminated at all.

When all the warriors saw the group of black monsters, they were secretly shocked.

So, at this time, Cao Yu made a quick decision and immediately ordered everyone to retreat to the back line of defense.

This line of defense is one hundred meters away from the entrance of the cave and two hundred meters away from the previous line of defense.

On this line of defense, Cao Yuyi used three weapons to attack. The first one was m1, the second one was mg42, and the third one was mortar, of course, it was the mortar in this world.

From this line of defense to the exit of the wormhole, it is about 500 meters. The cave is not high and the highest point is more than 100 meters. Therefore, it is a bit troublesome to shoot a cannon here, but Cao Yu has asked people to train carefully before, and as long as he operates strictly in accordance with the requirements, it is not impossible.

"All units are careful and prepare for shooting! One shot and one shot, and release it!"

Zhang Fei personally directed the shooting of the mortar.

Boom, boom, boom.

Ten mortars are shooting together.

Soon, ten shells flew out at an angle of about twenty degrees.

After a while, a rumbling explosion sounded, and a large number of monsters were blown away by blood.

Seeing the black monsters being blown away, everyone's hearts were relaxed a little more.

"Shoot!" the commander shouted.

The soldiers all raised their guns.

Bang, bang, bang.

One shot after another.

Soon, those monsters that were lucky enough not to be killed by the bombing fell to the ground not far from the defense line.

Yang Jingyu raised his gun and fired a fire, and killed a monster with one shot.

"good!"

He secretly shouted to himself.

After a while of adaptation, his mentality has stabilized, he is no longer so panicked, and his marksmanship is becoming more and more proficient. Although he still uses the rapid shooting concept to guide his shooting, he is still more accurate than the other. At this time, if he is lucky, he can kill the target with one shot several times in a row.

Suddenly, someone shouted: "There are big birds! There are big birds! Be careful!"

Yang Jingyu looked up and saw that, sure enough, in the air ahead, a group of big winged birds flew out from the top of the cave.

"Damn, why do you have such a thing?"

Yang Jingyu spat.

But this time he was no longer so panicked, so he quickly raised his gun and pointed it at the target!

Bang bang bang bang!

He fired three shots in a row.

But the target was not dead and still flew towards him with a strange cry.

"Fuck!"

Yang Jingyu cursed, quickly aimed at the target again, and fired one after another.

But this time, I don’t know if it’s because of my bad luck or other reasons, but I was beaten by the way, and the big bird rushed towards him with a strange cry.

"You can only fight for a bayonet!" Yang Jingyu bit her teeth and used force hard, preparing to fight with the strange bird with a bayonet.

But at this moment.

"Anti-air team, open fire!"

Scream—

The mg42 universal machine gun roared together, and waves of bullets hit out.

In an instant, the hideous bird fluttered a few times, then fell straight to the ground, and fell into a meat pie with a bang.

call--

Yang Jingyu breathed a long sigh.

At this time, he realized that his feet were a little weak.

Fortunately, the coach prepared a anti-aircraft machine gun.

Bang, bang, bang!

He shot one shot after another, and started to attack the nearest monster.

After persisting like this for more than ten minutes, someone suddenly shouted: "Iron Armored Beast! Iron Armored Beast is here!"

When Yang Jingyu heard this, she quickly turned her head and looked to the left. Sure enough, there were several monsters as big as elephants rushing over from a distance.

"grass!"

Yang Jingyu cursed.

Before, during the training, my superiors told them that this kind of monster was very difficult to deal with. They were covered with scales, like fish scales, dense, but extremely strong, and bullets could not penetrate.

However, this kind of monster is only in legends, and it has never appeared in the demon cave in Chuzhou, so at that time, no one understood why the superiors wanted them to understand this kind of thing.

Yang Jingyu hurriedly turned the gun and fired at the nearest iron-armored beast, but he could only hear the ding-dang sound. Even the m1 semi-automatic rifle could not penetrate the bullets.

"Grenade! Throw cluster grenade!" someone shouted.

Yang Jingyu hurriedly put down the gun, turned around and picked up a cluster grenade and threw it out.

Boom, boom, boom.

One cluster grenade after another was thrown out, and the iron-armored beasts rushing in the front were finally shocked to death.

But!

Oh my god—

Yang Jingyu took a breath of air conditioning.

The iron-armored beasts behind are densely packed with caves!

"Everyone has it! Retreat! Retreat quickly!" The voice of the leader of the Tiger Regiment rang.

After hearing this, Yang Jingyu hurriedly put away the gun, turned around, and lifted a box with another soldier and ran out, then went down the stairs and ran quickly towards the distance.

When they rushed out of the cave, someone shouted: "Defy!"

Soon, in the large jar not far away, chlorine gas rushed into the depths of the cave along the pipe buried underground. In a short while, a faint green could be seen in the cave.

Seeing the rising green, Yang Jingyu shivered for no reason.

In order to let everyone understand the harm of poison gas, their superiors once let each of them take a breath of chlorine and feel it. Since then, Yang Jingyu can't help but tremble every time she sees this light green gas.
Chapter completed!