In the sky, heavy dark clouds blocked the midday sun. It was noon, but the sky was so gloomy and oppressive that it was impossible to tell whether it was noon, dawn or evening. In the strange and oppressive sense of confusion, the city seems to be suffocated in a dead silence.

Using artificial clouds to resist high-energy particle beams in outer space can only block some high-energy particle attacks, and it is impossible to block all attacks like a shield. Even if a thick artificial haze is being released under the dark clouds, it can only weaken some of the outer space attacks. However, since it can create dark clouds, it can also artificially disperse dark clouds and haze. When the ground forces are in place, the equipment that creates dark clouds and smog can be destroyed. So, it's just a stopgap measure. If you only look at the two sides of the Earth Cave Star attacking and defending, losing the air supremacy in outer space, the defending side is barely undefeated at best. And the interstellar pirates on the attacking side are already invincible.

In the haze, missiles flying close to the ground flew in the direction of the security zone of Iron and Blood City. Behind these high-powered conventional missiles are a series of high-speed aircraft. Without the information provided by Zuo Zhe, the defenders might just choose to survive under the surface. But with Zuo Zhe's intelligence, and with the help of the city's surveillance system, people finally discovered the armed men hidden in the security zone. At this time, the people of the city have long since fled underground through the safe entrances around the city, and converged towards the underground base used to house civilians thousands of meters underground. At this time, the people who can still be organized to stay near the surface are either bad brains or bad water in their brains.

Once a high level of credibility was established, carpet bombing of the security zone began. First come a wave of missiles to wash the floor, and then the war mechs that follow closely will make the "safe zone" in the eyes of the enemy become the "safe zone" in the eyes of your own. And the basic guidelines of this operation can be summed up in four words, "leave no grass behind"!

The sudden carpet bombardment caught the Grey Ravens by surprise. Even though most of the members of the organization were hidden beneath the surface, there were still a small number of reconnaissance and peripheral members who stayed in the surface buildings that were affected by the explosion, and those mercenaries hired by high commissions were covered by heavy casualties in this round of firepower. And this is only the first wave of the enemy's attack. According to the conventional operation, after the bombing, the landing troops will be seamlessly connected, and the dizzy side of the bombing will be swept away like fallen leaves by the autumn wind!

"Intelligence leaked!" This only inference caused the members of the Crow to feel a tremendous amount of pressure. With the appearance of this information, the possibility of the enemy infiltrating your team immediately increases dramatically! The poor judgment of the enemy in their own ranks immediately transformed the Ravens from a completely trustworthy scout to an untrustworthy pig teammate!

However, it is only now that I realize that it is too late to remedy it. In the carpet fire coverage outside, the electromagnetic interference device has also been fully activated, completely blocking the communication in the "safe zone"! Even if it is a wired network, it is impossible to get in touch in the face of ultra-high-power communication blockade! At this moment, it was like a stellar flare erupting, and a storm of electromagnetic radiation with vast energy was exhaled towards the faces of the members of the Gray Raven Order! Except for Zuo Zhe, in the area of strong electromagnetic radiation interference, almost all people's means of external communication have been blocked!

Behind carpet fire, dozens or hundreds of aircraft rose from the entrances to underground bases throughout the city. These aircraft carry mecha warriors in an inhumane ultra-low-altitude, supersonic flight attitude, wrapped in a powerful shock wave that can directly shock people to death, and roar towards the safety zone! Wherever the aircraft passed, the birds and beasts on the surface of the city died violently in the terrifying supersonic shock wave, and even the insects hiding in the caves could not be spared! The supersonic and ultra-low-altitude flying aircraft tore apart even the vegetation and ground tiles on the surface, carried the turbulence of a sandstorm, and roared like a sky and the sun, and rushed into different areas of the safety zone that had just stopped the carpet fire.

The next attack was the launch of ground-penetrating missiles. Armed with the most detailed map of Iron Blood, the attackers' soldiers were able to pinpoint the exact location of the underground base and launch ground-penetrating missiles at the exact location. In line with the tactical guideline of "no mistakes are missed", the carpet bombing of underground bases everywhere is immediately launched! And in order to meet the arriving interstellar pirates, even if the members of the Gray Raven Order hide beneath the surface, they cannot hide too deep in the underground base. Therefore, after this wave of attacks, the number of casualties among the members of the Gray Raven Group immediately skyrocketed. In order to infiltrate Iron Blood City before, almost all the mecha piloted by the members of the Gray Raven Organization were individual mecha with a height of about three meters. And the defense power of individual mecha is really not enough in the face of high-powered ground-penetrating missiles. The most aggrieved thing is that in the face of such a one-sided massacre attack, the members of the Grey Raven Organization don't even have time to hide! After all, the previous strong electromagnetic interference blocked almost all external communications, and the miniature camera only fed back a screen of snowflakes. Therefore, except for a small number of members of the Gray Raven Organization who hid in the deep area of the underground base in advance because of their rich combat experience, those members who were not experienced enough were terrible, and being pressed underground was a violent beating. As for Zuo Zhe, even if he was hit by a powerful missile head-on, it might not be fine, let alone just being repeatedly shocked by the aftermath of the explosion in the narrow terrain.

Fortunately, the anomaly in Iron Blood City was soon discovered by pirate warships in outer space. After judging that the safe zone was already covered by carpet fire, the starships in outer space that controlled the air supremacy immediately launched a counterattack. On the one hand, Starfleet's main guns are working hard to consume the energy of the energy shield of the surface firepower fortress of Iron Blood City. The higher the power used to strengthen the energy shield, the lower the power that the high-energy particle cannon can receive. The power distributed by the high-energy particle cannon decreases, and the power of the high-energy particle beam fired naturally decreases. At that time, the energy shield of the outer space starship will be able to carry a few more rounds of attacks even if it is bombarded by a high-energy particle beam.

On the other hand, Starfleet also began plow-ploughing fire coverage against the ruins of the "safe zone". If only the firepower coverage is implemented for a small area of the safe zone, the firepower of the Star Corsair's warships is still sufficient.