The cleaning of the second floor was surprisingly easy because of the strong participation of the Supreme Commander, but because of this, there was not a single captured person on the entire floor.

Qin Feng originally wanted to leave the civilian personnel and hand them over to the team members to tie up, but who would have thought that all the guards he encountered along the way were guards with guns, and the current situation could not allow people to think too much, so he could only record the number of enemy encounters, equipment, and combat methods in the system for later analysis.

After the second floor was captured, there was no way to live, except for leaving one person to collect and process the wreckage first to avoid such a bloody scene that made Natasha disgusted or even misunderstood, the rest of the people rushed to the third floor non-stop, Qin Feng suddenly had a strange idea of being in the game, after all, isn't it the most common level setting in the game to clear the level layer by layer like now?

"The current electricity is 67%." The system prompt made Qin Feng have to shift his attention to a deeply hateful problem, the commander I type armor was limited by the size and the unlocking degree of the current technology at the beginning of the design, and used a relatively primitive power storage method to supply energy, through the battery pack on the back (after a clever shape design does not appear abrupt) and embedded in the inner layer of the alloy, the whole body of the microelectrode network to generate powerful thrust. The standby time was measured in days, but in high-intensity battles, the time was shortened to an outrageous hour, and the 30% consumption of cleaning a floor of a building made Qin Feng a little worried about whether he could maintain it for 1 hour.

It is true that any invention and improvement can only be tested in actual combat.

However, Qin Feng will not stop because of the loss of power, and if he does not test the limits of the battle armor again and again, how can he create a more advanced battle armor?

"There are no combatants on the third floor, clear space!" The Marines leaned into the hallway with their heads bent on each other's waists, and after opening the first office door, they continued to feel deeper into the dark hallway, the night vision probe on top of the helmet rendered the surrounding environment as if it were daylight, from where they stood to the end of the passage as far as they could see, everything was quiet, as if everyone here had fled in advance because of the fierce fighting downstairs.

The infrared device also did not detect any life, and the floor was indeed empty.

This is not in line with common sense, nor does it meet the normal standards for the construction of indoor defense systems, in order to prevent the Marine Corps from being outflanked by the enemy when they break into the fourth floor, Qin Feng is ready to let the soldiers set up some mines in the corridor, and the miniature anti-infantry mines with the identification of friend and foe chips are enough to ensure the safety of the back.

Beckoning the soldiers who had opened the second door to come back, and at that moment, a mutation suddenly occurred.

"There's a thunderbolt! Back off! ”

There are no other party's personnel in the corridor, but the other party also thinks of using dark thunder!

The shields used for the assault in the passage were immediately erected in front of the soldiers who pushed the door in, and the soldiers who followed behind also jumped desperately to the walls on both sides of the door. At the same time, the enemy's barrel mine body has also bounced to a height of about 2 meters, which is higher than the top of the bulletproof shield.

"Boom!"

The air squeezed by the gunpowder slammed into the shield with a wave of heat, and the soldier who was holding the shield on one shoulder felt a sharp pain in his ribs, and then spat out a mouthful of blood and sprayed it on the mask.

The shields and men were blasted back into the hallway, from the helmets to the shoulders and arms densely covered with prefabricated fragments.

The fragments of the thunder-jumping warhead are distributed in a spherical shape after exploding in the air, and there is simply no effective way to evade in such a narrow space.

Everything happened too quickly, but the soldiers who escaped in the corridor quickly dragged the bodies of their downed comrades towards the fire escape, and there were more than a dozen rooms on this floor, which were no longer suitable for cleaning one by one.

"Prepare mines!" Qin Feng commanded loudly to the people around him, but at this time, his heart jumped violently.

The enemy began to lay mines from the second room, and could not have imagined that they would retreat after being bombed once? Isn't the thunder jumping in so many rooms in the back useless at all?

Unless......

Unless the thunderbolt is not arranged in the back room at all!

"Everyone! Enter rooms 1 and 2! Fast! ”

Qin Feng almost roared out this sentence.

The words were immediately muffled by the roar, everyone's ears lost their sense of the outside world in an instant, and a ball of fire exploded one after another in the middle of the passage, thousands of tiny metal fragments scurried around in the small space, and everyone's night vision devices were more or less damaged under the direct light of the strong light, but it was irrelevant.

The soldiers who were still waiting in the passage lay on the ground, no matter how good the standard armor was, it was not much harder than a piece of paper in the case of a thunderbolt exploding next to the body, and the more the explosives were in the confined space, the more powerful they multiplied, and the scene was like a Shura field. With just one thought, nearly half of the soldiers in charge of the assault were injured.

There was a row of scorched holes in the ceiling, and the other party put the jumping thunder on his head!

The smoke gathered in the passage and could not be dispersed, which seriously interfered with the night vision devices, which had been damaged to a certain extent. Qin Feng, who was at the interface of the fire escape and corridor, was also hit by the air wave, and only then did he breathe a sigh of relief from the astonishing firelight and pull out his right hand, which was deeply inserted into the wall to maintain stability.

Although those living outside the epicenter of the explosion already knew what was going to happen, they did not fully understand the situation from the smoke and drowsy brains, and were trained to divide their responsibilities for rescuing the wounded and establishing a defence line on the spot to prevent the situation from deteriorating further.

Human-to-human battles are the most sensitive to the psychological changes of people, and the opponent naturally takes into account many possibilities when setting traps, and they have the ability to further aggravate the situation of the invader, which is home advantage.

The system detected the occurrence of the vibration through external instruments for the first time, but faster than the prompt sound, a bright light broke through the thick smoke and reached the eyes of the soldiers.

Qin Feng was the first to react, and when he kicked the rifle that was blown up when the explosion occurred towards the source of the light, the bright light also shone on his body synchronously.

That's not light at all! That's a chain of bullets from a heavy machine gun!

The bullets with high temperature clanged on the armor shell, but soon the huge kinetic energy gathered by the dense rain of bullets made Qin Feng feel the majestic impact coming from his chest, and his whole person was uncontrollably about to turn sideways to the side.

But the mask shows that behind him are two or three of his own team members' life signals, this retreat, the consequences are unimaginable!

"Full energy output to the mask! I want to see what's going on! ”

Gunpowder smoke began to surge from the corridor towards the only gap in the fire escape, and Qin Feng's eyes were almost gray, but when the order was given, the battle armor no longer spared the power to maintain power, and Qin Feng's helmet mask part quickly overflowed with silver-white light.

The display glass inside the mask quickly refreshed the scene in front of him at a speed beyond what ordinary human eyes could receive, from the rich dark green environment of night vision to the black, white and red images of thermal imaging, as the picture in front of Qin Feng's eyes switched and progressed, the light emitted by the mask became stronger and stronger, and even in the smoke, it was as conspicuous as a light.

However, the fireworks from the machine gun had been successfully eliminated after the layers of refresh and peeling off the horizon, and within a second or two, the shell damage rate and energy supply of the warframe were approaching the forbidden line.

However, it didn't matter anymore, Qin Feng had already seen a clear thermal projection of a person's torso, and a circular notch in the ceiling above him that still had a little heat.

Jumping suddenly from the previous floor, taking advantage of the opponent's confusion and using the fire of the machine gun to clean up, the opponent played a good game.

But who can hold a heavy machine gun in their hands after falling to a height of one floor, which ordinary people find it difficult to move?

The energy value of the Commander Type I armor was dropping downward every second, and Qin Feng simply closed the mask horizon after remembering the position of the opponent's heart, and added the energy to the thrust accelerator in his legs.

"Bang!" The smoke where his legs were originally standing turned into two ripples, and Qin Feng himself had already turned into a phantom and rushed out.

The short distance passed in a flash, and his own speed bonus made the speed of the bullet hitting the battle armor reach an unbelievable level, and under the action of the double force, the alien insects and alloy carapace on the outer layer of the battle armor shattered into fine fragments, and even for a moment, Qin Feng felt pain.

"Click!"

The thermal imaging was turned on instantly, and the pounding heart was right in front of him, but there was a piece of ground in the middle.

The other party's arm!

But Qin Feng was shocked to find that his shoulder was stuck in the middle of the other party's arm, and he couldn't move!