Near the mission target, the liquid metal mecha where Wu Tian's consciousness was located was quietly lurking, waiting for reinforcements to arrive.

If Wu Tian was allowed to drive the mecha to kill in and out of the monster group, Wu Tian would have no problem at all. But if Wu Tian was to save hundreds of survivors with a liquid metal mecha, it would be beyond Wu Tian's ability.

The four-meter-tall humanoid liquid metal mecha is like a chameleon that blends in with the environment, silently lurking at the entrance of the underground base where monsters are widely distributed. Even in battle, it is difficult for Wu Tian to be enthusiastic, and sneak attacks are the fighting style that Wu Tian is used to. Therefore, Wu Tian is not suitable for attacking those ordinary monsters that are not of high value, Wu Tian's target is the giant monster found in the underground base that can change into a variety of shapes like a tentacle monster, as if it has no weaknesses.

And the reason why Wu Tian's body in outer space released the previous surprise mission was to attract the monster hidden underground. If it was possible, Wu Tian would directly call for a fire strike from outer space to wipe it out. If the monster dodges the fire attack from outer space or does not come out, Wu Tian will attack. And as long as the ordinary monsters are cleaned up, Wu Tian doesn't have to worry about the sneak attack of the monsters from behind.

After receiving the airdropped weapons and ammunition and high-capacity batteries, the two mercenary groups from the north rushed towards the target coordinate point like twin meteor hammers. Although there will always be monsters that appear from street buildings or even underground and mid-air to attack them along the way, the two mercenary groups are as invincible as if they were devastating!

It wasn't until they reached the vicinity of the mission target that the advance of the two mercenary groups slowed down. The reason for the delay is to study the nearby terrain, look for nearby fortifications, and prepare for the defense of the position after the attack is frustrated.

Gradually, the two mercenary groups continued to advance towards Wu Tian's hidden position. The monsters that seemed to be made of mud along the way fell to the fire of high-energy particle beams and high-explosive bombs, and the monsters that were attacking the survivors of the lower space in the underground base were also alarmed and emerged from the exits everywhere.

It is difficult for Wu Tian to describe what these monsters look like, because no matter what kind of monsters they are, there are them. After the initial battle, the demonic virus has mutated many times and gradually found a way to deal with the steady stream of mercenary robots. These demonic viruses have evolved the ability to control the soil. It is precisely because of this that most of the monsters blocked along the way are composed of extremely viscous and tough soil. To deal with such monsters, ordinary bullets can only punch a hole in their bodies, and only high-explosive bullets, or high-energy particle beam attacks with a huge cross-sectional area, can cause effective killing effects. As for those monsters that have survived until now, they have evolved from humans step by step into powerful monsters. Whether it is an ordinary monster or a powerful monster, the vital points in its body can be moved at will. As for the vital point in their body, it is something like a combination of brain and heart. On the one hand, this vital organ can improve the intelligence of the monster, and on the other hand, it will also provide the monster with a steady stream of energy. The main attack methods of monsters, melee is physical attack and secretion of strong corrosive acid, and ranged is to throw body tissues with strong corrosive acid. Once these monsters stick to their bodies, robots or mechs will appear in large areas of corrosion. Even corrosion-resistant armor is useless, as it will automatically look for weak spots in corrosion-resistant armor and focus corrosion.

With the appearance of more and more monsters, the Huaxia Mercenary Group and the Thunderstorm Mercenary Group have shifted from a advancing state to a defensive state. At the same time, the high-energy particle beam attack from outer space also quickly bombarded down, killing and injuring a large number of dark monsters that poured out of the ground like a spurt of oil.

Like a mobile phone screensaver, it was attached to the corner of the wall on the side outside the entrance, and the liquid metal mecha coated with high-grade mimic coating quietly watched the exit of the underground base not far below.

Inside the exit of the base, there is a mechanical gecko that is also coated with a layer of mimic soil is lying on the corner of the top wall of the exit of the base, locking and feeding back the movements of the elite monsters in the base at all times.

As the movement outside became louder and louder, the underground base was trying to secrete corrosive slime, and the elite monsters that corroded the entrance to the lower level of the underground base finally stopped corroding the space under the base and instead flowed towards the location of the base entrance. That's right, like a liquid flowing, the paste-like monster with no definite shape flowed towards the base. It's just that, to Wu Tian's surprise, before leaving the underground base, the elite monsters have split from one to five. These five monsters had just differentiated, and they immediately absorbed a large number of clay-like monsters with relatively low intelligence, and continued to grow their bodies.

Then, three of the five monsters poured out of the underground base first, swaggering towards the location of the two mercenary figures.

"Three big guys are out!" A number of micro-flying machines hidden in mid-air immediately fed back images of the appearance of elite monsters, and the relevant footage was immediately fed back to the warships in outer space by the two mercenary groups.

Almost in the next moment, the starships in outer space aimed their large-caliber high-energy particle cannons at the three monsters that appeared below that were significantly larger than ordinary monsters, and shot down the powerful high-energy particle beams!

In the torrential rain of high-energy particle beams, the agitated fog quickly dispersed, and only a pool of magma flowing with blazing magma was left where the high-energy particle beam bombarded!

With the three larger monsters being directly melted into magma, ordinary monsters naturally pose a threat to the two mercenary groups. With the passage of time, the two mercenary groups were constantly moving towards the exit of the base where Wu Tian was, because it was from this exit that the three monsters came out before!

In the underground base, the remaining two elite monster clones are changing rapidly, sticking to the walls on both sides of a narrow corridor in the underground base like wall skins, camouflaged as if they were real wall skins.

"What a high level of wisdom!" Wu Tian couldn't help but sigh. If it hadn't been detected in advance, and there were mechanical geckos monitoring movements at all times, even if Wu Tian went down, it was very likely that he would encounter a sneak attack by monsters! However, even if Wu Tian knew about the monsters hidden in the underground base, Wu Tian would not rush down. Who can be sure if the trap below has already counted Wu Tianye? Although Wu Tian was very careful about infiltrating before, it was still possible that he would be discovered in advance!

"Warning, the difficulty of the mission has increased, please be careful of sneak attacks." The new quest hint has made the mercenary robots of the Huaxia Mercenary Group nervous, and this is the first time they have received a special warning from the main god during the mission!

"Stop moving forward now and send the mechanical gecko into the scout!" Tang Chengyi immediately issued a new order. I thought it wasn't a big task, but I suddenly found that the difficulty of the task seemed to exceed my expectations. If you hadn't accepted the task, the punishment for failing the mission would be very high, and Tang Chengyi really didn't want to rush into the risk. After all, their main mission is to rescue Orange Coffee from another underground base. If the main quest fails for the sake of a sudden mission, it is a big loss.

But now, with the increase in the difficulty of the unexpected mission, the task reward has also increased a lot. Tang Chengyi's heart gave birth to the idea of fighting again.

"What's going on?" An inquiry from the Thunderstorm Mercenary Regiment of the Thunderstorm Mercenary Regiment, who are horns on each other.

"There's a huge danger hidden in the base below, we have to be careful!" Tang Chengyi reminded.

For the reminder of this earthling, although Lei Hu attaches great importance to it, he is not particularly worried. After all, they came to the Earth Star in the form of consciousness, even if the robots were destroyed, they would not die, and the Thunder Tiger would not even fall into a coma. Therefore, instead of being frustrated by the danger, the Thunderstorm Mercenary Regiment's will to fight was faintly improved.

"The survivors in the base can't afford to wait, if you don't dare to go down, let us Thunderstorm Mercenary Group be the vanguard." After waiting for more than ten minutes, Lei Hu felt that it was not a matter to go on like this, so he opened his mouth to propose.

"Alright, we'll cover for you in the back!" Tang Chengyi naturally couldn't ask for such a proposal. The mercenaries of the Huaxia Mercenary Group are different from the mercenaries of the Thunderstorm Mercenary Group, and the mercenaries of the Huaxia Mercenary Group are not allowed to have a large number of casualties because of the main god space and the mission. After all, what Wu Tian wanted to build was an elite mercenary group, not a mercenary group that was a mess, so the requirements for these earth veterans were very strict. It is precisely this concept that leads to the fact that the adventurers who come out of the earth are not like casual and poorly disciplined mercenaries, but more like regular troops with strict military discipline.

Although the mechanical gecko that infiltrated the underground base did not find out where the danger came from, Tang Chengyi never dared to doubt the hint of the "main god". In this way, under Tang Chengyi's order, the Huaxia mercenary group temporarily guarded outside the underground base.

The alarm sound of "Didi Didi" sounded in the liquid gold mecha where Wu Tian was, and in a city sewer, the alarm that Wu Tian had placed in advance was triggered! The radar reflection from the siren revealed the second danger to Wu Tian. Just behind the Thunderstorm Mercenary Group, there is a monster that looks like a giant python heading towards the back road of the Thunderstorm Mercenary Group! As long as the python-like monster breaks through a thick wall at the bend of the sewer pipe, it can cut off the way out of the Thunderstorm Mercenary Regiment!

"This monster really has a back hand!" His brows tightened, and Wu Tian in the outer space of the Earth Yue Star felt the strangeness of the incident. If the intelligence of monsters is really so high, why go to great lengths to deal with a group of robots that are completely indestructible and simply kill endlessly?

(End of chapter)