PS: Thank you for the 10,000 starting coins rewarded by the book friend "Dandanyu Sorrow", and send a change.

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In the ruins on the outskirts of Mozabi's county seat, a large number of second-level mutants stood on the large dark red blood stains.

At a glance, all of them were second-level mutants, and the number was difficult to count for a while, but there were at least five or six hundred. This exceeded Cai Ruichen's previous expectations.

The previous forty second-level mutants almost broke the defense line, and the hundreds of mutants also hated after the attack of the ten sentinel cannons.

Now there are more than five hundred second-level mutants, and even if you take out all the ten sentry cannons hidden at the end, it will be difficult to resist.

The most important thing is that under the intensive firing of just five consecutive minutes, all the barrels of the sentinel guns have been seriously heated, and even if they can still shoot, they will not be able to reach the limit of fire at all.

The rocket artillery units behind, in order to stop the mutants' division of troops, also poured out the prepared rocket artillery. It was not possible to reload all the rocket launchers in a short period of time.

And these second-level mutants are also the last resort of mutants, and the victory or defeat depends on the next battle.

Thinking of this, Cai Ruichen did not hesitate, and decisively ordered Elleyesel: "Order, except for snipers, heavy machine gunners, and fire support gunners, all the soldiers will withdraw from their combat positions in turn and move towards the second line of defense. In addition, all the armed mining trucks were gathered in front of the second fence, and the only way to fight was to fight. ”

The Sniper's anti-materiel sniper rifle, as well as the Fire Support Soldier's bazooka and anti-tank missile, can kill Level 2 mutants. And the 12.7 mm bullet of the heavy machine gun. Although it is difficult to kill second-level mutants. But it can also stop the footsteps of second-level mutants.

As for those soldiers armed with rifles, they can't get any benefits from the hands of second-level mutants at all, and ordinary rifle bullets can't hurt second-level mutants.

After all, there were no ordinary mutants in sight, and instead of letting these soldiers with ordinary weapons waste bullets on the first line of defense, it was better to let them go to the second wall to prepare for defense.

After the order was issued, Cai Ruichen decisively picked up the anti-materiel sniper rifle that had been prepared on the side.

Lay down the tripod. Perched on the edge of the wall, beside him, Clark also picked up an anti-materiel sniper rifle, while Ralph carried a bazooka and a mobilizer to assist him.

At the same time, between the battlements of the first wall, all the anti-tank missiles were taken out, set up with tripods, and aimed at the second-level mutants outside.

It's just that even if all these equipment are combined, they want to block more than five hundred second-level mutants. It's really choking.

But this is already Cai Ruichen's limit.

At the moment, artillery in the rear. Quickly adjusted to shoot Zhu Yuan, and a burst of rapid fire was all aimed at the ruins.

"Roaring ......"

Before the cannonball fell, a piercing cry suddenly came from the county town, and almost everyone, including Cai Ruichen, couldn't help but put down the weapons in their hands, covering their ears in severe pain, instinctively trying to block the scream that seemed to burst the eardrum.

It's just that the cry seemed to penetrate all matter, as if it sounded directly in the brain, and the mobilized soldiers who were evacuating all rolled on the ground with their ears covered, very painful.

"Damn, it's sonic attack again." Cai Ruichen scolded angrily, endured the pain of tinnitus, and shouted to the base: "Activate all the sentinel cannons immediately." ”

The buzzing and pain in his mind did not make Cai Ruichen forget the environment he was in now.

The other party even used the sonic attack, and those second-level mutants were absolutely impossible to just stand there and watch the show.

He was a little dizzy, although his eyes couldn't see the enemy situation for the time being, but he could also think that those second-level mutants had definitely begun to attack.

Sure enough, when the voice fell, everyone saw that under the heavy artillery blow, all the second-level mutants were rushing towards the wall.

The entire twenty sentry guns, all of which roared angrily, burst into dense fire, quickly destroying everything in front of them.

Among the original second-level mutants, there were several who carried the broken walls in the ruins in front of them, hoping to resist the attack of the sentry cannon.

But the lethal cannonball, which can withstand that wall, unless it can carry a city wall, is not much different from the paper paste.

Thirty millimeters of shells are enough to penetrate those walls and kill all the second-level mutants behind the walls.

It's just that such a picture, in Cai Ruichen's eyes, is completely different.

He didn't know if such a move was controlled by the controller, or if these second-level mutants took the initiative to do it.

But such a picture can already explain a lot of problems, which makes his mood a little heavier.

However, such thoughts were immediately discarded by him, and only ten of the twenty Sentinel Cannons could really exert the highest rate of fire.

The firepower simply couldn't completely stop the footsteps of those second-level mutants.

Grabbing the anti-materiel sniper rifle beside him, he didn't have time to adjust the scale of the scope, and aimed at a second-level mutant who was already close to the wall for 400 meters before pulling the trigger.

The bullet didn't even catch up with the other party's footsteps, Cai Ruichen was not in a hurry, but adjusted his aiming position.

The second shot was fired, and after the second-level mutant had advanced another hundred meters, the armor-piercing bullet intercepted it.

The bullet passed through the chest of the second-level mutant, leaving a fist-sized hole, and the second-level mutant only paused for a moment before continuing to run despite the blood spurting from his body.

In the third shot, after Cai Ruichen fired, he didn't look at the result, and aimed at a new target.

As for the guy who grabbed him twice, he threw himself directly on the ground and slid more than ten meters away, most of his head exploded, and there were brains everywhere.

The rocket launchers and anti-tank missiles on the wall also opened fire one after another, and for a while, the entire outside of the wall was once again plunged into a large area of gunsmoke.

It's just that compared to the previous record, the current attack, it is not easy to kill an enemy.

In the middle of the powerful fire attack, the only ones that can really do stable damage to the enemy are Natasha and Clark's snipers, as well as the sentry cannon below.

In just thirty seconds, several second-level mutants had already run under the wall, and these mutants did not climb the wall for the first time, but raised their fists and smashed them at the sentry cannon with a frenzied wave.

The metal-clad Sentinel Cannon, although it looks strong, is not very defensive.

The perverted power of the second-level mutant quickly smashed the turret outside the sentry cannon into dents everywhere, and if it was smashed again, the defense of the sentry cannon might not last for a minute. (To be continued......)