Slowly moving forward in the dark underground tunnels, Xu Chen was already very tired of the various types of Zerg that would suddenly burst out at any time, this kind of enemy with weak combat power and single combat methods was not challenging, and even their so-called sneak attacks were so lacking in novelty.

But what made him feel even more helpless was that it was precisely because of these sudden attacks of the Zerg that the team that entered the Yongdao could not search forward at a fast speed, and could only search slowly and carefully.

"That's it! Let's take a break! The leader of the team took a look at the current time and where they were currently located, and ordered the search team to stop.

Xu Chen turned his head to look at his teammates around him, and through the night vision goggles, he could clearly see that everyone had sat down peacefully on both sides of the corridor and began to rest silently, and at the same time, two people automatically stood up in the front and back of the team, and arrived at the front and rear sides of the team to do the guard work.

Seeing this scene, Xu Chen, who didn't feel tired, also sat down with the others.

The close-fitting elite protective mecha fell to the ground with a "bang", and this full-body covered mecha can maximize the driver's abilities, and even the abilities of the two senses of vision and hearing have been greatly improved.

But when there is no need to fight, the restraint of this close-fitting protective mecha also makes the user feel quite uncomfortable, Xu Chen, who was troubled by this, first looked at the guards on both sides of the front and back, and then confirmed the air content of the current environment, and after confirming that there was no harm, he immediately opened the protective helmet with confidence.

But after opening the helmet, before he could find a good sense of relaxation, a damp stench mixed with mildew immediately invaded his olfactory system, thanks to this, Xu Chen immediately became a feeling of suffocation.

In a hurry, he took off the ventilator inside the mecha and took a few large breaths of the compressed pure oxygen inside, and then he came to his senses.

In fact, the air here is not inhalable by the human body, but the disgusting smell also makes the human body's respiratory function involuntarily shut down, and instinctively resists absorbing oxygen from this environment.

"Sister! Couldn't the air analysis instrument be improved and analyze the smell of the outside world!? Xu Chen scolded secretly.

Now that the outside environment has become like this, Xu Chen, who wants to relax, can only give up this idea and obediently put on the protective helmet again.

Just as he was about to take a break from his mind, a glowing blue light appeared in his view.

The perspective shifted, and the mecha's auxiliary night vision effect was turned on, and the dark corridor suddenly became brighter.

In front of that piece of blue light was their team leader, and his purple mecha was still very prominent in their group of dark blues, and the unfolded blue light was the real-time full view of the current underground corridor.

At this moment, there was a sudden sound in their path, there should be a team slowly approaching, and looking at this movement, the scale of the other party is not small.

In an instant, the nerves of everyone who were still resting tensed again, got up, and set up a battle formation, and a series of actions were completed in one go in silence.

The source of the sound was getting closer and closer, and the weapons in the hands of the team members were already raised, and as long as the other party showed the slightest figure, they would be attacked with the fiercest attack.

"Wait! Don't do it yet! The captain's voice was heard in the team's communications channel.

Xu Chen, like the rest of his teammates, shifted his perspective to the captain with some puzzlement, only to see that he was still looking at the map from before this.

I saw him tap a few times on the projection to bring up their location, and then after confirming the situation around them, he turned off the projection and raised the weapon in his hand.

The captain's actions undoubtedly gave the team members who were observing him a command to attack, and immediately raised the weapons in their hands, but this time the captain did not coordinate and command in the center like in the previous battle, but slowly moved forward while holding his own weapons.

He didn't speed up or slow down much until he reached the forefront of the group, and soon, the captain broke away from their defensive line and continued to move slowly in the direction of the sound source. And the team members next to him wanted to follow up and protect on the side, but they were also stopped by him.

Everyone was confused, completely unaware of what their commander was doing, and they didn't know how to cooperate. The captain continued to move forward slowly, and did not stop until the corner of the road.

Then he turned on the light source on the auxiliary mecha, shone it at the corner of the passage, and immediately turned it off, turned around a few steps and returned to the main formation. And not long after his lights came on, a similar light and shadow came from the opposite side.

Only then did everyone relax, and the weapons in their hands were slowly put down, and now it was certain that the source of the approaching sound should be the other clean-up troops following behind them, the brother troops who were serious about it.

The reason why the captain had to turn on the map projection before was to confirm it, after finding that the location of a team was very close to them, he ventured to get closer, and confirmed his identity with a light signal, and after getting a response from the other party, he could confirm the identity of the opposing coalition army, according to the battle report information provided by the coalition command, there has not been a type of zerg that can emit a strong light source so far.

After confirming that there were brother troops in the front, the friendly forces in the rear were obviously a few points faster, and this team was also solemn, after all, no one dared to guarantee that there was any special situation until the identity of the other party was confirmed with their own eyes.

Soon, the opponent's troops crossed the corner, and it could be seen that the size of the opponent's team was not very large, and it had completely passed the corner in more than ten seconds and stood in front of the squad.

"You're from that unit!?" The captain stood in the position of the combatant and began to ask the identity of the opposing team.

"We are the Seventh Fleet, the Fifth Landing Regiment, the 507th Detachment, and we will continue to carry out the cleaning mission now, please cooperate!" On the opposite side of the team came a character who appeared to be the commander.

After confirming that there were brother troops in the front, the friendly forces in the rear were obviously a few points faster, and this team was also solemn, after all, no one dared to guarantee that there was any special situation until the identity of the other party was confirmed with their own eyes.

Soon, the opponent's troops crossed the corner, and it could be seen that the size of the opponent's team was not very large, and it had completely passed the corner in more than ten seconds and stood in front of the squad.