As the minutes passed, the passage illuminated by the helium lamp seemed to never end, and Bisol followed the third team in the middle of the group, but his heart became more and more suspicious.

At the previous three-way intersection, Bisol had a thought that he couldn't explain in his heart at the Zuihou juncture, so he made an impromptu decision to let the second team search along the left passage, and he took the other three teams to continue to search the right passage. However, after searching along this passage for so long, Bisol and the others could no longer find any clues that "enemy troops" were passing by.

"Captain, something doesn't seem right!" The puzzled voice of the first squad leader came from the headset.

"Say!" Bisol frowned and replied briefly.

"I feel like we're searching in the wrong direction!" The team leader continued to analyze: "When we came in before, the slope of the passage was sloping, probably leading to the underground. The passage we're searching for right now is an inclined Xiangshang, which is likely to be another exit to this underground base. I don't think those enemies would be stupid enough to flee back to the ground through another exit, right? In that case, I guess it would have been discovered by our friendly forces on the ground. ”

After listening to the squad leader's analysis, Bisol immediately paid attention to the trend of the cave walls on both sides of the passage, and saw that there was indeed a faint upward slope, and he couldn't help but have a hint of unpleasant premonition in his heart. Bisol hurriedly called up a small radar inside the holographic helmet mask, which could show the location of friendly troops within a radius of one kilometer.

Bisol had wanted to find the green signal points representing the second team, but it was unknown whether it was due to some kind of signal jamming device on the walls of the underground tunnels or some other reason, and there was no sign of the second team on the radar. Bisol's scalp was numb for a while, and he hurriedly called through the team's internal communication channel: "Danny, I'm Bisol, and I'll give Lao Tzu a shout immediately when I hear it!" Complete! ”

"Captain, I'm Danny, please instruct, over!" The familiar voice of the second squad leader came from the headset, which made Bisol breathe a sigh of relief.

"How's your search going? Did you find anything? Complete! ”

"Captain, everything is normal, no anomalies have been found! Complete! ”

"Good! Keep the communication going! Complete! Bisol landed a little on the ground with a stone in his heart, and made a gesture to signal the squads to move on. Maybe those guys really went back to the ground in a daze, and then my brothers wouldn't have to fight hard! Bisol prayed in his heart.

However, less than half a minute after Bisol and the others were back on the road, the helium lamps on the walls of the passage cave suddenly went out, and the entire passage suddenly fell into endless darkness.

"Turn on the night vision system, and each team will report the situation!" Bisol's heart sank, and he hurriedly gave the order. With the faint green picture lit up in the holographic mask, the reports of the various squad leaders came from the headset.

"Team 1 is safe, over!"

"Squad 3 is safe, over!"

"Second Squad ......" Just as Danny, the leader of the second squad, was about to report, suddenly a series of fierce gunshots rang out in the communication channel, "Da Da Da!" ”

"Enemy attack! Enemy attack! Before the startled Bisol could ask, Danny's frightened cry came from the headset, "Captain, we are in ambush, ask for reinforcements!" Request reinforcements! ”

"Danny, hold on! We're going to help! Listening to Danny's anxious cry for help, Bisol's eyes suddenly became bloodshot and red, and with a wave of his big hand, he shouted an order to the team members next to him: "The front team becomes the rear team, the target second team, go at full speed!" ”

"Boom!" However, before Bisol and the others could run a few steps, a loud noise was heard in the communication channel, and then only a squeaky and squeaky sound remained.

"Danny, answer me quickly!" Bissol's heart was cold, and he cried out anxiously. However, it was still the terrible blind voice that responded to him. Bisol knew that it was likely that the entire second squad would be finished.

"Captain, what now?" The eerie silence in the communication channel lasted for a moment, and then the first squad leader's inquiry sounded.

"What to do? Rush over to Lao Tzu and tear those bastards out and shreds! Bisol suddenly woke up from his grief, gritted his teeth and cursed angrily: "All squads obey my orders, the stragglers advance in formation, and once they find any suspicious targets, they don't need to ask for instructions, they just open fire!" ”

Moments later, an enraged Bisol and the remaining three squads re-rounded the three-way intersection and turned into the left passage. After cautiously moving forward for a moment, several sporadic purple-red lights appeared in front of him in the holographic helmet, like the light of some cold fireworks. In a blur, there seemed to be more than a dozen Marines, lying horizontally and vertically in the passage. Bisol was shocked, and hurriedly waved his hand, signaling his men to slow down and slowly approach the area.

This is a passage bend, almost 90 degrees of corner, so that Bisol and the others can't see the scene behind the bend clearly, the originally smooth steel cave wall, at this time everywhere is full of cratered bullet marks left by nail gun bullets.

"First Squad, clear the corner ahead! The third squad rescues, and the fourth squad is on alert! ”

With Bisol's decisive order, the twenty-three marines of the first squad quickly made their way through the chaotic area and disappeared behind the corner.

However, just as Bisol put away his rifle and looked down at the members of the second squad who were lying in a pool of blood, suddenly there were several grenade explosions from behind the corner in front of him, and at the same time several unusually bright lights lit up, and a terrible howl was heard from the headset.

"Ahh My eyes! "Ah, it hurts me!"

"Captain, it's a flashbang, we're in ambush!" Accompanied by the rapid shouts of the first squad leader, a series of gunfire explosions rang out one after another behind the corner.

"Turn off the night vision system and turn on the tactical spotlights! The fourth squad quickly reinforces the first squad, quick! Bisol shouted in a hurry.

Twenty members of the fourth squad hurriedly squeezed past the third squad that was inspecting and searching for the wounded, and rushed to the corner.

At that moment, not far from Bisol, one of the team members crouched down and struggled to turn the body of a face-down comrade, and suddenly a round, black object appeared in front of him. A red signal light the size of a bean flickered rapidly on the top of the circular object. The team member was so frightened that he almost lost his soul and fell to the ground with a thud.

"Drip, drip, drip!" The crisp and loud sound of the siren, accompanied by the chaotic footsteps of the members of the fourth team, echoed in everyone's ears.

"Ground, ground, mines!" Bisol could only hear the team member shout two words in a voice that was almost miserable, and his mind suddenly went blank with shock, and he almost lost his soul. Everyone's figures were startled by the sound almost for a second.

In the next moment, two or three loud noises rang out in the entire passage, and between the flames, the stump and severed arms wrapped in CMC armor and the blood of the stars scattered in all directions.