Just 10 meters away from the city wall, holes were opened at the bottom of the wall, and then rows of flames erupted.

The corrosion mutant larva made a sharp cry and kept rolling in the fire.

But in such a short distance, the speed of corroding mutant larvae is not fast, so there is no way to avoid it.

Once the flame attached with a special combustion promoter can not be extinguished, the body of the mutant larvae and the ground nearby become a sea of fire.

However, in the fire, the effect of the corrosive liquid in their bodies is greatly reduced. Most of the corrosive liquid is vaporized by the flame before it falls to the ground.

The fire burned for five minutes. After the fire was extinguished, there was no corrosion mutant larva at the root of the wall. Only the corroded metal floor was left.

This is a proper response. We should not let the corrosion mutant larvae self explode near the city wall, otherwise these non combat larvae will definitely bring great trouble to the city defense.

David is a little strange. In the process, the first level Zerg outside the city did not attack the city, as if they were waiting for something.

He can't help but think that the relevant knowledge mentioned that Zerg is also a wisdom race, but not all Zerg have wisdom. The higher the level of Zerg, the higher the wisdom.

Among the first-class Zerg, the intelligent Zerg with higher intelligence may also be alienated.

He doesn't know whether this is the case outside the city, or there are more terrible secondary Zerg.

Of course, with the existence of city defense, the second level Zerg attack the city defense directly, which will also pay a great price. Rarely do the second level Zerg do this.

For heavy laser cannons to do damage to level 2 Zerg, they need to be continuously attacked.

With class II Zerg's faster speed and stronger defense, it's almost impossible for heavy laser guns to lock it in.

Only when the second level Zerg is close to the city defense and multiple heavy laser cannons attack at the same time can the effect be achieved.

"Warning, space fluctuation detected, city energy shield on!" The city defense system automatically issued a warning.

The shadow in the sky can see that inside the wall, the transparent energy net covers the whole city. Then the energy net makes a noise of energy flow. The grid of the energy grid slowly disappears, forming a completely transparent energy shield.

"This is the legendary energy shield!" David looked at the energy shield like a giant soap bubble in the sun through the shadow server's eyes, and was amazed at the technology of the world.

To open the energy shield to defend a city, the energy required is huge, which requires a lot of krypton crystal consumption, which will be a huge loss for pelan city.

So the energy shield doesn't turn on at ordinary times. Even in David's memory, he doesn't see that Perrin has opened the energy shield.

Now it's energy shield, which means great danger is coming.

After the energy shield is opened, it does not include the scope of the city wall. The city defense system is arranged outside the energy shield.

It is said that except for a specific weapon, the vast majority of heavy weapons can not be fired from the inside of the energy shield, which makes the city defense system once protected by the energy shield, the result is that it will lose its combat effectiveness.

This is the result that no one wants to see. The security of a city is placed on the energy shield. The energy of the shield is consumed, and the whole city is completely broken.

The shadow attendant watched in the air, trying to find out the source of the danger.

At this time, a famous Oracle jumped from the passage of the wall. They stood on the wall in an orderly manner with various weapons.

David couldn't see the faces of these warriors, but he could see that they were army warriors. All of them were wearing the land lion exoskeleton armor, which is the military's land battle exoskeleton armor.

Even among them, he also found that there were five class II weapons in their hands.

"Attention, the space wormhole will open at any time. Our mission is to defend the wall. Behind us are our homes, our relatives, and the soldiers of the Union will never shrink back!" Lieutenant Elmer, who is also wearing the land lion exoskeleton armor, said in a deep voice through the sound reinforcement of the exoskeleton armor.

This is not only for the warriors, but also for the other soldiers on the defensive wall.

David saw the rank on the land lion's exoskeleton armor, the rank of lieutenant, and wearing the army's land lion exoskeleton armor, he immediately knew who it was.

This was Daley's father and the captain of the first squadron of the city defense brigade.

He counted again. There were about 100 military warriors here, which were just the whole of a squadron.

It seems that the pelan city defense team has sent out the entire army squadron a.

It's just that David doesn't know what the space wormhole is, and the shadow guard looks around and doesn't see any Zerg.

Just as he was observing through the shadow attendant's field of vision, he suddenly felt a strong strange energy fluctuation, which was the shadow servant's natural perception. His position was five meters above the city wall, which was kilometers away from the fifth control room.The shadow agent looked in that direction, and the military apparently found the exact location of the wormhole through some device. The two nearest heavy laser guns turned their huge guns and aimed at that position.

Then two sharp beams of light are emitted, penetrating the air, passing through the location of strange energy fluctuations.

However, a brighter light came on. Fortunately, the shadow waiter did not have the dazzling feeling of the light. Even if the light was bright, it would not affect it.

In this moment, the two laser beams seem to have lost their light, and in the shadow's view, the surrounding space wormholes appear and become dark.

It's just an illusion, because the wormhole is too bright when it appears.

The space wormhole only lit for less than a second, then it stabilized, and the strong light disappeared. A water ripple like hole appeared in the air, and the surrounding of the hole was emitting blue light.

The two lasers maintained the attack, but did not affect the emergence of wormholes in space.

As soon as the wormhole was stable, a huge buzz was heard by the shadow servant far away. From the wormhole, a flying Zerg with transparent wings, ugly head and knife like forelimbs flew out of the wormhole.

"It's tearing up the flying insects, pay attention to the formation of arrays!" 'said Lieutenant Elmer in a loud voice.

Tearing is a kind of first-class flying Zerg with group action. Although it is not the most powerful one among the first-class Zerg, its speed is the fastest.

In addition, its flying ability makes the tearing flying insects the most difficult class of Zerg to deal with.

As soon as the first tearing insect flew out of the space wormhole, it was hit by two laser beams. The powerful insect shell could not resist the continuous attack of the heavy laser gun. As a result of this frontal hit, the wings behind the torn flying insect were vaporized, and the insect shell on its body became burnt black.

But its tenacious vitality makes it instinctively want to highlight the scope of the laser beam. When the tearing insect successfully highlights the attack of two laser beams, a secondary Tomahawk with a faint blue light cuts off the tearing insect and splits it in two.

It was lieutenant Elmer who had just kicked his feet on the ground, and his second-class heavy axe had just finished a fatal blow with the force of his second-class heavy axe just after tearing the flying insects out of the laser beam.

"Good!" The beetles cheered loudly.

The first level Zerg is not so easy to deal with. Even if they have good training and cooperation, they need the cooperation of five warriors to kill the first level Zerg without injury.

Of course, the reason why the tearing bug can be killed by Lt. Elmer is that the beetles all know that this is due to the heavy damage caused by two lasers, but it can kill a level 1 Zerg in the beginning, which is a great boost to morale.

Contrary to the excitement of the warriors, Lt. Elmer was not at all pleased. This time, a part of the Zerg population in space chose peran, which was the worst result.

He doesn't know how many Zerg will appear in the future. Although he has scanned the location of the wormhole in space, he doesn't know whether he can block the invasion of Zerg by relying on his 100 warriors.

As for the folk beetles, he did not expect that unless they were returned from the army, their real combat effectiveness against Zerg was far less than that of the army.

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