Squatting next to the bubble-bubbling magma pool, the three "astronauts" patiently used the metal instruments in their hands to carry out some kind of measurement work.

These staff members of the underground base are collecting data on magmatic activity in the area to provide information to their superiors. Although the base once sounded the alarm, they dutifully came out to carry out their mission, completely ignoring the danger they might encounter.

Because, this task is so important.

——For the next operation, this data collection task is absolutely indispensable.

The three of them all knew that their collection mission this time was the key to the success of this operation.

"Be careful......

An astronaut standing in the back, while "watching" his teammates to carry out the measurement work, looked around vigilantly, beware of enemies that could appear at any time.

Due to the lack of night vision and thermal imaging, he could only observe the situation in the area illuminated by the magma, and now there was no enemy in sight, but he still did not dare to take it lightly.

"Hurry up, get ready to evacuate." The astronaut in charge of the guard whispered.

"It doesn't matter, there's no way the enemy can attack here, and even if Bigford falls, Marcus is still there." The astronaut, who was still using the instrument to take measurements, was not as nervous as his companion.

In his opinion, the defense on the outside of the underground base can be described as "iron walls", in addition to the almost immortal Martian creature, there is also one of the high-level figures of the underground base, Marcus, who came from nowhere.

With those two ruthless characters here, even if the enemy can get here, he should be dying, so there is no need to care about it at all.

Of course, an enemy who has invaded an underground base may also be a ruthless character who can kill two generals in a row. But even so......

The astronaut who was measuring shook his head and stared at the readings displayed on the screen of the metal box, until the number was determined, and finally nodded with relief, and said to his teammates who were close by radio, "Measurement." ”

"Okay, it's time to retreat." The astronaut in charge of the guard nodded, turned and walked towards the back of the magma pool.

He was about to turn on the thermal imager inside the helmet of the spacesuit, but he saw a small fire suddenly light up two hundred meters away.

Bang!

The bullet from the light machine gun blasted through his spacesuit helmet, shattering his skull with ease and stabbing it in the back of his head. The astronaut fell down without saying a word, and the other two people next to him immediately reacted:

"Enemy attack!"

One of them pulled out the pulse pistol stuck in his holster and began shooting at the spot where the fire was lit, while the astronaut with the equipment ran briskly in the opposite direction.

"Run, I'll cover you, this time the information can't be in vain!" The man who was shooting roared, and as soon as he finished speaking, he was shot through his chest and fell to his knees weakly.

- Many people think that machine guns can only be used for fire suppression, but the reality is that this weapon is also very useful for accurate fire.

In the early days, many large-caliber sniper rifles actually had a scope attached to a heavy machine gun, and if you are an experienced soldier, the accuracy of shooting with this weapon is also very high. In the 20th century, a sniper used a scoped M2HB heavy machine gun to achieve the world's farthest sniper kill of 2,286 meters, and this record even stood for 35 years until 2002.

And for Lin Chi, who has been fighting with machine guns for a long time and his proficiency has risen to a very high level, it is naturally very easy to kill the enemy with a light machine gun equipped with a sniper rifle scope at a distance of two hundred meters!

Seeing that the two companions were killed, the remaining astronaut didn't have time to be sentimental, just ran wildly with his legs in his arms, and his bloated body protected by the spacesuit was still swaying from side to side, trying to dodge the sniper's bullet through the "devil's pace".

Unfortunately, he soon realized that his efforts were in vain......

Another gunshot rang out, and the astronaut, who had just run out of the high temperature range of the magma pool, fell to the ground with his body crooked, and a large amount of blood spurted out from his ankle where he was hit by a bullet.

"Damn."

The astronauts cursed and tried to crawl out of this dangerous area, even though they were crippled, they still dutifully dragged the metal box for measurement, which can be said to be crippled.

His body began to lose strength under the severe pain, and he only climbed out of less than ten meters before he saw that the gunman who had just shot had already walked over quickly.

"Despicable criminals......

As the figure in the tribal suit grew, the astronaut muttered about to draw his gun, and then was struck in his right hand by a shot, causing him to wail again.

Lin Chi turned on the megaphone of the protective suit, put down the light machine gun in his hand, squatted beside the astronaut who fell to the ground, patted the metal box that was still hot, and asked:

"Tell me, what is this?"

"Criminal, I won't tell you!" The astronaut cursed loudly, pressing a button next to the helmet with his still movable left hand, and the face under the mask was suddenly covered in green gas, and his body began to spasm wildly.

- This thing committed suicide with poison gas!

"You're really backbone......"

Looking at the still twitching corpse of the unyielding astronaut, Lin Chi bent down to lift the hot metal box, and there was no introduction to the items in his sight, but a few question marks popped up.

Realizing that the puzzle here was not easy to solve, Lin Chi directly stuffed the box into his backpack, and then turned around and left without saying a word.

In order to obtain this box, he can only take the risk and shoot directly in what may be the interior of the underground base. Now, most likely, the enemy has heard the gunfire and is on his way.

Although it was a pity that I could not get information from the astronauts, I had no choice but to retreat now. When the brigade of the underground base arrives here, Lin Chi, who is still in the open space without cover, will definitely become a target!

"Warning, intruder ...... spotted"

Suddenly, there was a repeating chime in his headphones, and the same ghostly siren. Hearing this voice, Lin Chi rushed to the direction where the three astronauts came at the fastest speed, and the tactical flashlight in his hand kept shaking, shining like a lighthouse in the dark.

He knew that he was currently carrying out a death operation, and the possibility of being killed by a single shot by the enemy was extremely high, but now, he could only gamble. After all—

"Gambling is one of the joys of life, my friend......"

Remembering the lines that Fang Shen didn't know where he said, Lin Chi directly activated the "Rage" skill, accelerated and sprinted forward, and the tactical flashlight in his hand drew a slender arc of light in the dark underground cave.