Ye Han knew very well that the insects themselves were not intellectual, at most they had some instincts, the scale of the insect swarm was so large, it was absolutely impossible to complete such a complex attack by instinct alone.

In other words, there must be a zerg hiding in the shadows to command the swarm, and if the bugger in charge of the command can be found and killed, the swarm will lose its command and may even fall into chaos.

But compared to bugs, bugmen are too inconspicuous, and they can hide tightly wherever they drill, and it is unrealistic to find out the bugmen.

The pace of the insect swarm is getting faster and faster, and the heavy light insect also moves forward step by step with the charge of the insect swarm, the heavy light insect is tall and heavy, the insect legs are thick and long, and it seems to be slow when moving, but in fact it is not slower than the giant insect that is running.

After a while, the insect swarm rushed into the battlefield full of scorched black insect corpses, and a little more than a kilometer away, it was the fortress tower at the very edge of Funing.

At this time, the swarm suddenly exerted its strength, and the speed increased suddenly.

The heavy light insect that followed behind was the opposite, stopping directly two kilometers away, and the launcher on its back aimed at Funing, suddenly shooting out thin lights.

The fine light fell unmistakably on the tower of the fortress, over and over again, and over again...... Ye Han's eyes twitched when he saw it, this is the rhythm of demolishing the building!

If the swarm charging in front is infantry, then the heavy light insect that sweeps vigorously behind is artillery, and the tactics of the swarm are the most obvious infantry and artillery coordination.

If the Heavy Light Worm bombarded him for a while before the swarm charged, it would be equivalent to preparing for artillery fire before the charge.

Ye Han couldn't help but sigh, the tactics of the insect swarm really said that there are as many humans as there are humans, if only a wave of incendiary bombs were thrown at this time, none of these insects could escape, and they all had to go back to Grandma's house.

Such an obvious fighter, even if it is not discovered in the direction of Funing, the other troops in charge of supporting it should not miss it, what is the reason why this fighter was not seized?

The "shelling" of the heavy light insects was very effective, and the outermost fortress building was scarred under the continuous cutting of fine light, and before the insect swarm rushed closer, two fortress buildings had already collapsed.

The hearts of all the human beings who saw this scene were heavy, although everyone knew that the number of launches of fine light was limited, but such a strong fortress building was destroyed by the heavy light insects, can the fortress buildings block the insects?

At this time, the defenders' large-caliber mortars also sounded, the longest range of this thing was more than eight kilometers, and the distance between the heavy light insect and Funing was just over two kilometers, and it was completely possible to use artillery fire to eliminate the heavy light insect at a fixed point.

Not long ago, that scene was repeated on the battlefield, the mortar and the heavy light insect fought across the battlefield, but the mortar was a curved fire, all set up on a safe rooftop; And the heavy light insect is direct fire, no matter how dense the counterattack, it can only hit the fortress tower.

On the one hand, the artillery fire was covered at any cost, and on the other side, there was a desperate counterattack but could not be hit, and the situation was extremely unfavorable to the heavy light insects, and it didn't take long for the artillery group to kill dozens of heavy light insects.

But mortars are not guided weapons after all, whether to hit depends not only on aiming, but also on luck, there are very few cases of one hit, most of the time, several mortars are fired at the same time, in order to increase the number of ways to increase the hit rate.

As a result, the sound of artillery did not last long, and the shells hit all seven or seven or eight, and the shelling had to be stopped.

This wave of shelling was all aimed at the heavy light insects, and not a single shot fell into the rushing swarm, and by the time the shelling was over, the swarm also rushed to the edge of the city.

According to the military's plan, the swarm was supposed to rush directly into the short street between the fortress buildings, and then be met by the defenders, and had to retreat after suffering heavy casualties.

But in reality?

The insect swarm did not rush into the short street at all, but quickly climbed up the empty fortress building, and climbed up step by step along the wall, only a few giant insects facing the short street rushed directly into it.

Originally, the muzzles on the defense line were all guarding against short streets, but after discovering the abnormal offensive route of the swarm, the command center immediately adjusted its deployment and sent additional manpower to the rooftop to prevent the swarm from breaking through the rooftop.

The straight-line distance between the rooftops is more than ten meters, for most giant insects, this distance is no different from the moat, but for the jumping insects, more than ten meters is really not a thing, and they jump over.

In the face of all this, all the defenders, including the special service group, were on alert and ready to open fire at any time.

There was a dense sound of gunfire downstairs, it was the machine gun in the firing point that was firing, and countless bullets were like invisible flaming whips, hanging the giant insects that rushed into the short street from all directions and angles.

As soon as the insects rushed into the short street, they were hit head-on by the rain of bullets, one second they spread their insect legs and ran quickly, and the next second they fell down and turned into a rolling gourd, and the short street was like an invisible wall, none of which could break through the blockade of the defenders' firepower.

However, the swarm did not rush in a single force, they quickly changed their tactics, some of the giant insects continued to storm the short street, attracting the fire of the defenders, and other giant insects quickly climbed the outer wall of the fortress building, stepping on the wall of the building and rushing to the second line of defense.

Ye Han really hadn't thought about this situation, but the distribution of the defenders' firepower points was very scientific, and the firepower that was originally concentrated in the direction of the short street immediately dispersed, launching a crazy strafing of the insect swarm in all directions without dead ends.

Looking down from the rooftop, the space between any two fortress buildings is filled with flying bullets, and the beam fired by each machine gun is like an ever-extending chain of bullets, many of which combine to form an invisible and deadly net.

Due to the angle, bullets rarely stick to the wall after hitting the wall, and in most cases they become ricochet, and many bullets fail to hit the bugs, but instead become hit and fall on the bugs.

Of course, the ricochet is not powerful enough to penetrate the carapace of the bug, and the real deadly threat is the direct hit of the bullet!

The interception fire is always aimed at the insects that rush to the front, often several or even a dozen machine guns fire at a giant insect at the same time, a series of bullets hit it, and dozens of irregular bullet holes immediately appear on the insects, and some bullets penetrate the insects, bringing countless splashes of blood.

However, not all bullets can penetrate bugs, so there are far fewer blood flowers than holes.

Seeing this scene, Ye Han quietly breathed a sigh of relief, he really didn't know that the defenders' firepower was so strong, and he only used rifles and machine guns to block the attack of the insect swarm...... There is certainly no shortage of heavy weapons on the defensive line, but good steel has to be used on the blade, and bugs that can be dealt with with rifle machine guns do not need to expose the fire point where heavy weapons are deployed.

According to the current offensive intensity of the bugs, even the defense line cannot be approached in a short period of time, and other heavy firepower will not be useful for a while except for mortars.