"Boom!" At this moment, a huge sound sounded, another bomb exploded, the elevator door was blown open, fell, fell into the underground floor, the elevator shaft was instantly exposed to the sight, Liu Fan was shocked, and suddenly found that there was a power outage around, it seemed dark, thinking that it might be the enemy who had destroyed the power grid, and he might be about to launch a general attack.

"Captain Wu, get ready to fight." Liu Fan shouted coldly.

"Understood." Wu Xiaohong agreed.

Soon, the guards received the order, after they received the order, all the muzzles of the guns outward, aimed at the dark night, ready for battle, as a soldier, there was no retreat, and no one could endure the enemy's arrogant bombardment, this is a shame, shame can only be washed away with the blood of the enemy, everyone is on solemn alert, waiting for the fighters, ready to fight at any time.

Liu Fan came to the door of the hall of the office building, looking out vigilantly, the gate of the research institute was brightly lit, and five black shadows could be vaguely seen rushing over quickly, and there was no movement in the guard box at the gate, and it was estimated that the sentry had been murdered.

"Da Da Da!" The guards also saw the figure rushing towards them, and fired quickly in an instant.

Liu Fan was also about to shoot, and suddenly saw that the five people were almost at the same time, like a fierce wolf, one person and two pistols, almost instantaneously fired, constantly shooting at the exposed firepower in the office building, and pressed the firepower back, Liu Fan was frightened, so fast shooting, good accurate shooting, this is a very terrible enemy.

In an instant, the bullets of the five people were finished, and Liu Fan was suddenly shocked to see that the five people threw their pistols into the air almost at the same time, and the empty bullet clips fell, and then ran forward quickly, taking out the bullet clips from their bodies like lightning with both hands, one in each hand.

At this time, the pistol in the air also happened to fall, they stretched out their hands, accurately loaded the bullet clip, and then caught the pistol steadily, this series of operations, dazzling, so accurate calculation, so fast speed, so clever way to change bullets, so fast shooting, so accurate gunner.

"This is a master." Liu Fan saw that the five people who had already run up were unharmed under the attack of dozens of people, and he was shocked, turned around and ran, hiding in the corner, leaning against the wall, adjusting his breathing and waiting, ready to attack at any time.

Soon, the five people ran to the hall and found that the hall was empty, there was no one, the five people presented a pentagonal defense, one of them came to the staircase and jumped without hesitation, while the remaining four people were back to back, four people and eight shots, blocking all angles around them.

Liu Fan leaned against the wall, adjusting his breathing with his inner method, facing such a master, Liu Fan's fighting spirit was also stimulated, holding his breath, and hearing a bang, the secret passage may have been someone jumped into the elevator shaft, and entering the underground space needs to pass through the explosion-proof door, and the underground space has an independent power supply, and the explosion-proof door will not be so easy to open.

At this time, Liu Fan heard Chen Mengqing's low voice ringing in the earphones, Chen Mengqing told him that the cheetah led people to find the people who hit the hole, there were only three people, and the tunnel happened to be opened, and the front and back were sandwiched, and the three people had been killed, and asked Liu Fan about the outside situation, Liu Fan was taken aback in his heart, and instantly understood, what an accurate calculation this is, if it weren't for the fact that someone hit the underground passage and killed the enemy, maybe they really succeeded, it seems that this enemy is more cunning than imagined.

Liu Fan thought about it, blew out the headphones to warn Chen Mengqing, he was in a hidden state, and it was not appropriate to make a sound, otherwise he would be discovered by the enemy, and when the time came, he might be in trouble.

And Chen Mengqing also immediately understood, knowing that the situation was critical, Liu Fan couldn't speak, thought for a while, and said decisively, "Now immediately open the explosion-proof door, let them in, laser killing, since you are here, then don't think about leaving." ”

Chen Mengqing's face was full of murderous energy, these people want to sabotage, they want to obtain that artificial intelligence research technology, it is impossible, these people are enemies, and the enemy needs to be eliminated in order to be safe.

The people who infiltrated the front of the elevator shaft were vigilantly looking at the blast door, waiting for the attackers inside to respond, seeing that the riot door was opened, there was no suspicion of others, and the four people on the ground got in touch, and the four people in the ground hall heard the news, exchanged eyes, and left one person to break the back, and the three went down into the elevator shaft.

The four of them met at the explosion-proof door, the four exchanged a look, one walked slowly inside, and the three people in the back saw that the person in front of them went seven or eight meters, there was no problem, and they also walked in, but at this moment, they suddenly felt a heat, and then they were horrified to see that their bodies were cut into several pieces by the laser, and their consciousness was engulfed in darkness, and they didn't understand what was going on until they died.

Chen Mengqing saw that the four people who sneaked in were cut into pieces by the laser, and blood was splashed, even if she was bold, she couldn't help but turn pale, this laser was too terrible, and it was killed directly, it can be seen how high this energy is, and the flesh and blood can't stop it at all, but after all, she is an iron-blooded soldier, and quickly calmed down, looking at the minced meat all over the ground, Chen Mengqing quickly calmed down, looked at the pale Ding Yueting, and said to the cheetah who came from the tunnel, "Guard here, I'll take a look." ”

Chen Mengqing said, and was about to go outside.

"Wait, what if the other party comes in?" Cheetah said, he knew that Chen Mengqing was good and came from the mysterious army, he was not worried about Chen Mengqing, but thought that if someone came in outside and Chen Mengqing was in the passage, the laser rays in the passage would not be able to be used, and the time might give the enemy a chance.

Chen Mengqing also realized that he was concerned about chaos, thinking that Liu Fan was a lucky general, who could feel the crisis in advance, so as to deal with the crisis, and his skills were not bad, he suppressed his worry, retreated, and continued to guard the entrance of the passage, and at the same time, he also comforted the emotions of Mo Lao and others.

And at this time, on the ground, the remaining person saw that there was no movement on the ground, and couldn't help shouting into the headphones, but found that there was no response, and at this time, Liu Fan quietly poked his head out, stared at the other party, and restrained the murderous aura on his body.

Maybe it was because his companion didn't respond, this person was a little nervous and wanted to evacuate, but he still looked at the elevator entrance unwillingly and began to visit, and Liu Fan, who was hiding, also keenly discovered this, and was happy in his heart, and shot without hesitation.