The last line of the second echelon was crossed, and the main formation of the second echelon was already close in front of the eyes of this pursuing force, and it was not long before they could reach their range of attack.

Although these Zerg who participated in the pursuit were fast and could easily catch up with the coalition fleet, they also had a fatal weakness, that is, the attack firepower was insufficient, and the degree of damage was difficult to even destroy the outer defensive cover of the heavy battleship, let alone directly cause any damage to the fleet's main formation.

Therefore, these zergs gave up on carrying out substantial strikes on the second echelon from the very beginning, and chose to target the attack of the troops in areas such as engines and rudders that are easy to affect the actions of warships and have difficult defense capabilities.

Their purpose was to slow down the fleet's movement as much as possible, so as to buy time for the main forces in the rear to catch up.

However, the second echelon will not be shaken by the successive breakthrough of several blocking lines, and in the face of the rushing Zerg pursuit troops, a fleet in the middle position immediately began to turn the direction of its advance, and most directly lined up in the void.

The fleet in the rear rowed through the formation of this fleet one after another and rushed to the target area, but this fleet did not move.

When this zerg advanced into the attack range of the fleet, the fleet that left behind the palace immediately began to output fierce firepower, these active attacks were not passive waiting like floating mine positions, and a round of precision strikes immediately greatly offset the momentum of the impact of the pursuing troops.

The small units that were fighting for the outpost of the pursuing troops were immediately annihilated, and the pursuing positions in the rear also suffered some damage.

However, relying on the attack effectiveness that this fleet can produce alone, although its attack density can slow down the opponent's advance, it is difficult to completely intercept it, and this point was detected by the Zerg pursuit force after the coalition fleet launched the third round of attacks, and they immediately resumed their pursuit posture and began to move forward rapidly.

Although the attack of the coalition forces once again caused losses to the pursuing force in the process, even so, the Zerg still did not waver, but moved forward more firmly to do the assault operation.

Just as the pursuing force had rushed to the edge where it could engage the allied fleet, the fleet had already made a turn of movement and resumed its hurry.

For the actions of the fleet, the first reaction of the Zerg was that they couldn't bear it, and just launched a fierce attack on their camp, and just as their side was about to make a counterattack, the other party was about to retreat, how could there be such a cheap thing in the world?

After losing the fire hindrance of the fleet, the speed of the Zerg troops was liberated to a certain extent, and the distance between the two sides was shortened in an instant.

At this moment, a new round of attacks began, but this time the attack was not launched by the fleet in front, but from the front of this fleet, and the attack density here has been strengthened, so the speed of the Zerg is forced to decrease again.

Such actions have been carried out repeatedly, and this force of the Zerg is also quite helpless against this kind of tactics. During the pursuit, they did not fail to try to break this situation, but none of them succeeded, and in the end they could only watch the second-echelon fleet sail into the fire protection range of the C4 fortress little by little.

The Zerg's pursuing force also tried to launch a surprise attack, but was suppressed by the fortress's fire in an instant, and all the Zerg who rushed into the fortress's fire range were annihilated in an instant, and it ended without even a little warning.

In the face of such strong protective firepower, this pursuit force of the Zerg would not make such a senseless suicidal attack even if it was unwilling.

The C4 fortress is not a temporary improvised defensive fortress like the one Zhang Yunfan and the others are stationing, but a giant defensive fortress that already exists in this area.

During the first battle against the Zerg, the Coalition was forced to abandon the starfield, including the fortified fortification, due to the pressure on the front line. When the coalition returned and accepted the fortress again, they found that its structure was basically good, and even some of the fortress's systems were still working normally, and there was no large-scale damage from the Zerg.

In the following period, the coalition forces made a series of modifications and improvements to the fortress, and transferred a number of equipment from the rear to strengthen it, and finally formed the current situation of the C4 fortress.

Not only does the entire front have a giant fortress in the middle, but there are also eight defensive planets around it, and in addition, there are countless armed satellites with powerful attacks in the outer orbits of these planets.

The entire fortress can be said to be armed to the teeth, and the defense force is very strong.

If it weren't for this confidence, the second echelon would not have chosen this fortress alone to dodge.

The Zerg's pursuing force stayed far beyond the fire range of the fortress, quietly observing the fleet they had been pursuing, until they completely entered the fortress, but they did not make the slightest movement.

However, these zergs don't need to be too anxious, since they have locked on the area where the target is located, their task has been completed, and the rest of the annihilation task will depend on the main army of the zerg that is still in the rear.

Time passed quietly, and the huge size of the main force of the Zerg finally felt before the fortress, but the first thing they did was not to attack, but to choose to start arranging their troops outside the range of firepower, and arrange the attack formation first.

"It's ...... Coalition attack formation! "The person in charge of the fortress, General Tyr, the former commander of the Star Sea Defense Line of the Alliance Theater, looked at the formation expelled by the Zerg on the periphery and said in surprise.

Although some colleagues have said before that the Zerg seems to be very familiar with the allied army's tactics, and can even use the various tactical tactics of the coalition army, he has not seen it with his own eyes. This time he was a complete eye-opener, and finally understood why the coalition forces were defeated so quickly.

General Tyr tried to calm his excitement, turned his head to look at his assistant beside him, and asked, "Who the hell leaked the tactics of the coalition forces?" How could the Zerg be so skillful? ”

"This ......" assistant was obviously a little embarrassed, and said hesitantly: "I don't know the specific situation, it seems that the Zerg has hidden some spies within the coalition army, and has passed a series of intelligence of the coalition army to the Zerg troops. ”

"Didn't you check it thoroughly? How could there still be? Tyr was puzzled.

If we talk about Zhang Yunfan's incident, although the alliance theater suppressed the matter, it still spread to all departments of the coalition army at that time. After that, in order to detect the Zerg spies, a major inspection was also carried out by all the staff. Later, a series of adjustments were made to various aspects to ensure the security of the information of the coalition forces.

However, this aspect is beyond the scope of his assistant's ability, and it is difficult to answer it.

The assistant shook his head helplessly and said vaguely: "It seems that something happened later, but it was directly defined as top secret, and basically no one knew!" ”

"Top secret?" General Tyr frowned slightly, and couldn't help but fall into deep thought.