The number of light fighters is declining, and the firepower in their hands can't play much of a deterrent role, after Shang Zhengyu gave the order, the warrior monk soldiers rushed into the insect tide one by one, detonating themselves, and a series of explosions suddenly occurred again, and the soldiers and insects were repelled by five meters......

At this life-and-death juncture, every meter is incomparably precious to the soldiers and insects or their own side.

With the self-explosion of the warrior monk and the continuous scrapping of Shura, the firepower at the mouth of the cave began to decrease.

When King Ming alternated the magazines again, the insect tide recaptured the five meters and attacked again within a dangerous distance.

Although there are still about 10% of the ammunition inside the machine turret, the ammunition used by the machine soldiers is already bottoming out, and the Shura soldiers, who have no time to go to the sea of bullet shells to find the few new magazines left, began to draw their ring-breaking scimitars and start hand-to-hand combat.

But the difference in numbers can be described as a world of difference, and Shura was engulfed...... The first machine battery was captured, followed by the second...... Tower 3......

The insect tide spread to the mouth of the cave, like a chain reaction, the machine batteries were captured one by one, and the four giant machine soldiers of the Ming King who still survived and guarded the entrance were also crawling with soldiers.

Finally, the insect tide broke through the defensive line and poured into the mouth of the cave.

Countdown to the completion of the Black Sword upgrade: 10 minutes.

The insect tide that poured into the cave pushed and pushed forward. Due to the fact that the entrance of the cave was full of corpses of soldiers and the remains of soldiers, the speed of the rear soldiers and insects entering the cave was greatly slowed down.

After walking into the cave for about twenty meters, the soldiers in the front row saw what seemed to be a wall in front of them.

The wall is moving forward.

The two generals' main station mechs marched to the designated defensive position, and the bottom of the giant foot stretched out a fixed stake, deeply inserted into the ground, and remained motionless like a mountain.

The general's huge body is saturated with four machine guns and four heavy machine guns, and there is also a ring of automatic fire points on the rock wall and ground in front of them.

This is the second line of defense set up by taking advantage of the terrain characteristics of the cave!

In order to ensure that there would be no barrel cooling and reload intervals, the weapons on the general's body were fired in turns. Behind them, there are two warrior monks who specialize in reloading.

With two huge gates in charge, the soldiers and insects that poured into the cave could no longer move forward, and the limited terrain of the cave made it impossible for them to spread out the formation again, so they had to go forward and suffer fire one after another.

The second line of defense set up by Shang Zhengyu was very effective, and the situation seemed to be stabilized.

In the face of stubborn resistance, the executor of the soldiers and insects received the order of the mother worm, and the executor with the head wrapped around the white worm, in the sound of gunfire, rubbed his mouthparts loudly and began to direct the soldiers and insects to fight.

The soldiers and insects hiding behind the corpses in the front row did not continue to climb over the corpse mountain to die, but began to dig the ground, and the rustling sound of countless giant scythes digging into the ground was extremely disturbing.

Although the general's main battle mecha has strong firepower, it can't penetrate the ground after all, and the soldiers and insects dig earth and rocks, intending to approach from the ground.

The obstacles at the entrance of the cave were cleared, and the influx of insects became clear, and they began to cling to the rock wall and advance, once again widening the line of attack.

In the face of the still surging ground forces, the general had no chance to put away the fixed stakes, but could only continue to sit still, killing the enemy who was becoming more and more flooded in his field of vision.

However, in the face of the mighty insect tide, any defensive strategy is powerless, and the front line has once again touched the line of defense.

Falling from a rock wall dozens of meters high, the soldiers and insects landed on the general's main battle mecha one by one, inserting the giant scythe directly into the gap of the mecha.

The digging soldiers also came out of the ground, slashing and slashing two huge mechs from behind.

The fully loaded guns also became useless at this time, and they were only fired in vain. Soon, the two generals and the fixed fire points were also completely submerged......

Countdown to the completion of the Black Sword upgrade: 5 minutes.

Before the upgrade project, all the troops and defensive firepower created by Chen You had been completely destroyed, and there was no mechanical force between the enemy and the Black Sword.

But the insect tide is still surging.

As if knowing that victory was at hand, the soldiers quickened their pace. The soldiers in the front row could even see the Black Sword suspended in the depths of the cavern, with a dim blue vein.

At this point, all of the Black Sword's weapons and firepower were unusable, but there were still five minutes left before the upgrade was complete.

One of the soldiers in the front row suddenly slipped and fell, touching the ground and finding it slippery and greasy, with a greasy smell.

Standing not far from the Black Sword, the iron head ignited the torch in his hand, and standing in front of the black and heavy Black Sword, it held the torch like a gatekeeper waiting for visitors.

The ground has the reflection of firelight, which is the fuel in the fire sac of the Flying Dragon.

The iron head hung down the torch, and the small flame on the torch quickly spread forward, expanding into a fire dragon that occupied the entire path of the cave.

The fire dragon continued to spread forward, the grease smeared on the ground and the rock walls was ignited, and countless soldiers and insects that rushed forward were caught in the flames.

The Turbidity Zerg is not afraid of anything, except from the deepest instinct of fire.

The soldiers, who were able to move forward in the face of the machine battery, began to scream and push in the fire, and some of the soldiers and insects turned and began to flee in order to avoid the bright and burning horror.

The cave turned into a purgatory scene for a while, and countless soldiers and insects were burned to death, and some of the ignited soldiers and insects completely lost their minds, and rushed everywhere like a huge fireball.

The path was blazing, blocking the pace of the insect tide, and the greased fire-carrying insects rushed back in a panic, and these soldiers with dry bodies were ignited one by one......

Even though Tietou is a Zen machine that doesn't know the cold and heat, he still feels the overwhelming heat wave, which makes his electronic brain a little overheated. When he saw that the fire was raging, he turned and walked deeper into the cave.

These fire sac fuels and animal fats were all strategic materials collected by him, Xuanwu and the Dire Apes, just to prevent the invasion of the Turbidity Blood Zerg.

This time, in order to defend against the insect tide and allow the Black Sword to complete the upgrade, it just came in handy.

The raging flames formed a sea of fire, and the soldiers and insects could not advance at all, and those soldiers and insects who were full of fire and lost their minds and fled back were directly dismembered by their fellow clansmen with giant scythes, preventing the fire from continuing to spread in the array.

The heat was strong enough to quickly dry the insects, and they had to retreat to avoid the flames for the time being.

Because the fire fell into chaos for a while, it was finally stabilized by the execution soldiers and insects, and in order not to waste their troops in vain, the soldiers and insects all stopped, and watched the wall of fire raging from a distance in the wide passage.

The grease burns very quickly, and because the depth is too deep and the oxygen content is limited, the tongue of fire gradually weakens.

The flames consumed oxygen and affected the soldiers, although they did not feel pain, but due to the lack of oxygen, their limbs began to become sluggish and numb, in order to avoid falling, the insect tide began to retreat, as close as possible to the hole entrance, to get enough oxygen......

As the oxygen in the cave was consumed by the flames, the wall of fire was finally extinguished, and the insect tide was once again unstoppable.

Countdown to the completion of the Black Sword upgrade: 2 minutes.

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