Liu Yuxin had been waiting anxiously in place for more than ten minutes. His weak squad did not dare to go any further, lest it trigger the Zerg elite who could fight against the battleship to intercept it. But the pursuing troops behind them from the main base of the Zerg are pressing forward step by step, and may appear in the field of vision at any time.

"We've got to find a place where it's easy to defend, and we'll be done with a long-range salvo from the other side."

Although Liu Dongfang was a scout, he was also a regular military graduate, and he quickly saw the shortcomings of the terrain here

"We can't go too far, we don't know where the cordon of the swarm front stronghold is, if we get too close, we may draw out the elite troops in the stronghold"

Liu Yuxin thought about it for a while and agreed with his opinion, the space that can move in this tunnel is too small, and there is no thing that can be used as a cover, so it can't resist the impact of the Zerg at all.

Several people walked forward a few hundred meters, and finally found a slightly open place, and Liu Dongfa stopped.

"That's it, let's build a defense"

Liu Yuxin smiled bitterly

"It's too late, they've arrived! Now we can only defend the mouth of the tunnel, hoping to hold out until reinforcements arrive."

Liu Yuxin's radar showed that a red spot of light appeared 3 kilometers away from them, filling the entire passage.

Liu Dongfa looked at his empty radar screen and asked in surprise

"Already here? But it doesn't show it on my radar? There's no reason why an enemy of that size can't be detected, right? ”

"Swarms have good control over their life characteristics and are naturally resistant to our human life detection radar. Even my very powerful detection equipment on the King Kong can only detect them within a range of about three kilometers. ”

"Three kilometers?"

Liu Dongfa groaned

"Judging from the action of the Zerg just now, we still have a buffer time of 2~3 minutes at most! Zhao Changshun, unload the supplies on your back first, and everyone equip me with all the weapons that can be equipped inside, and put the box at the entrance of the cave as a cover."

Liu Dongfa is ready to fight against the water here!

Several people opened the box and desperately loaded the weapons inside on themselves. What electromagnetic rifle**, plasma**, backup energy battery, take as much as you can.

"Shen Fugui and Zhao Changsheng are guarding both sides of the tunnel mouth and relying on the cover of the wall to attack, my mecha's armor is relatively thick, which can be used as a mobile firepower point, and Brother Liu is responsible for cleaning up our fish that slipped through the net."

For the grasp of the battlefield, none of the people present can be stronger than Liu Yuxin. Seeing that everyone was ready, he took over the command as a matter of course.

Soon after assigning the battle position, the ground began to tremble slightly, and under the searchlight of the mech, the pangolin-like xenos in the tunnel showed their shapes.

After discovering their pursuing target, the xenomorph directly launched a charge, and the speed of running increased sharply.

Without any orders, Shen Fugui and Zhao Changsheng stretched their upper bodies out of the wall and used the electromagnetic rifles in their hands to shoot freely at the xenos in the tunnel.

"Woohoo"

"Woohoo"

……

The hard and dense metal firing pins penetrated one xenomorph after another, carrying the juice and internal organs of the front row of bodies, and flew into the back row of bodies until their own kinetic energy was exhausted.

In just a few seconds, dozens of xenos were incapacitated by the deadly ammunition and tumbled to the ground, then trampled into pulp by their swarmed counterparts.

This small casualty did not cause any waves in the xenomorph population, and in the blink of an eye, the frontmost xenomorph was only about 300 meters away from them.

Liu Yuxin didn't expect a few electromagnetic rifles alone to stop the swarm of insects. Estimating that the swarm had reached the best shooting range, he rushed out, using the barrel of the rotating laser Gatling to pull up a red band of light that would kill on touch.

"Whoosh, whoosh, whoosh......"

The continuous high-energy beam cut through the air and melted into one large hole after another in the xenomorph's body, and the bullet holes on some xenomorphs' bodies were even densely connected, and the unsupported bodies were broken into several pieces and scattered to the ground. Although the high-energy laser can't hit the xenomorph flesh and blood like a ballistic weapon, its silent cutting has forcefully contained the xenomorph offensive, and the battle line has been pushed back to 800 meters away, and the xenomorph no longer dares to come out directly from the corner, Liu Yuxin and they also stopped shooting in time.

For a while, the whole world was quiet again, and only the sound of a few seriously injured Zerg in the tunnel was dying. The commander of the Zerg also realized that the tactics of the sea of soldiers in the face of heavy weapons did not work, and did not drive his men to send them to death, and the two sides were at a stalemate for the time being.

In this rare moment of tranquility, Liu Yuxin and the others hurried to replenish their ammunition. They knew very well in their hearts that as a complete race, the means of attack would never be only to this extent. After a brief lull, there must have been another stormy attack.

"Changshun, do you think we can go back alive?"

Shen Fugui lined up ** on the ground one by one, and quietly asked Zhao Changshun on a private chat channel

"How do I know? You have to ask the insect uncle on the other side what he thinks about this kind of thing."

Zhao Changshun carefully stretched out his head and looked into the tunnel

"No wonder those old-timers always told us that we couldn't say what happened when we went back this time, why couldn't I hold back! Hey, it looks like Xiaohua can't wait for me......"

Shen Fugui's tone was a little depressed, there were only a few people on his side, and the reinforcements were far away, no matter how he looked at it, the chance of successfully getting out was very slim

"Calm down, they're coming"

Liu Dongfa saw a group of red dots on the radar passing through from the rear, and the overlapping xenomorphs were advancing towards them, and a deep voice interrupted their conversation. Those new xenos rushing from the rear should be the key to dealing with their heavy weapons, and they must not be taken lightly!

Figures more than 4 meters long emerged from the corners, their bodies were dark, their backs were 4 meters long and 2 meters wide, their backs were stacked with thick armor, their round faces were about two meters in diameter, and their two eye sockets were deeply embedded in the bone armor. Four pairs of thick legs covered with clefts were evenly arranged on both sides of the abdomen, supporting the body, which weighed more than a dozen tons.

Seeing them appear, Liu Yuxin's pupils shrank

"Do we have any other heavy weapons?"

As far as those heterogeneous heavy exoskeletons are concerned, they are completely unable to deal effective damage with their own Gatling power.

Liu Dongfa naturally understood what Liu Yuxin meant, and pointed to the plasma spread on the ground**

"Those ** may be the only thing that can fight them"

Liu Yuxin looked at the few dozens**

"Once the ** is over, we will retreat! Don't hesitate! ”

By this time, the 10 new xenos had formed up in two columns and slowly approached them, followed by a long line of ordinary pursuing troops.

They can even play tactically!

When they approached 500 meters, Liu Yuxin's Gatling roared again, and the long beam of light was connected into a straight red line under Liu Yuxin's control, and it continued to burn at the same point. A few seconds later, a xenomorph's armor was finally burned through by a high-energy laser, and the laser that pierced through its body instantly scorched its body into charcoal. The walking xenomorph twitched and fell to the ground, and a gap was immediately opened in the first row.

Before Liu Dongfa and the others could breathe a sigh of relief, a xenomorph in the back row sprinted up to fill the vacancy.

"Rely on" x3 (Liu Yuxin doesn't like to talk roughly)

In just a few seconds, the insect swarm had advanced more than 100 meters, and Liu Yuxin estimated that even if his spear skills were supernatural, he would not be able to break through the formation before they approached him, and he gestured at Liu Dong

"Wait until they get closer to 200 meters and throw **!"

The time came in a flash, and the three unplugged plasma ** were thrown out and flew leisurely towards the swarm, and a second later, there were three more. The armor on the xenomorph that was glued to the plasma was melted at a speed visible to the naked eye, and soon the xenomorph screamed and turned around and ran back, knocking down several of his companions and falling to the ground.

After a round of ** attacks, the ordinary xenomorph with a fragile body has been exposed. At a distance of 200 meters, even a slightly trained soldier can accurately hit a large target like Xenomorph, not to mention a few elite-trained scouts and the talented Liu Yuxin? The metal firing pins fired by high-energy lasers and electromagnetic rifles immediately spread all over every section of the tunnel, and in just a dozen seconds, Liu Dongfa and them missed 3 **.

"Click~"

Shen Fugui put on a new ** for his electromagnetic rifle.

This round of counterattacks shattered the xeno's attack plan and re-pinned them to the corner of the tunnel.

This time they literally stopped for a while, until another batch of xenos arrived.

"After two trials, they have figured out our strength, and now we must be ready to run away at any time!"

Although she had not been in contact with these xenos for a long time, Liu Yuxin was also deeply in awe of the xenomorph commanders' improvisation. Judging from its several strains, it has a very high level of intelligence, and can reasonably use the resources in its hands to give strong pressure to the other party. In fact, its tactical arrangement is no worse than that of the average field commander. Such an opponent with enough resources in his hands can't defeat a few of them after a few temptations, then he won't be able to match his previous performance.

This time, it was still two columns of thick-armored xenomorphs that served as shield walls, followed by a phalanx of dog-headed pangolins, then another shield wall, followed by a phalanx. Gradually, the tunnels were filled with xenos, and it was no longer possible to see the backs of xenos through the gaps.

"Gollum"

"Gollum"

"Quack"

……

A strange noise rang out from behind the swarm

Liu Yuxin's face changed and shouted

"Watch for cover! It's a ranged attack! ”

His body also rushed to the side of the wall, and after landing, he did not stop, and rolled again to avoid the front of the mouth of the pit as much as possible.

A sour-smelling green juice passed over the top of the xenomorph's head, followed Liu Yuxin's landing points one by one, and fell to the ground after shooting into the air, making a sizzling corrosive sound.

And in the tunnel, the xenomorphs are steadily advancing in the form of a phalanx with neat steps!