Time passed by minute by minute, and when 10 minutes after the first gunshot, Onisia had just finished the laser fence and a man used a small piece of C4 explosives to blow open the elevator shaft leading to the underground facility, and the second wave of American reinforcements quickly arrived on the scene, two Black Hawks and a Chinook came out of the night sky in the distance, and approached the airport straight.

Due to the large black smoke generated by this area, the helicopter pilots did not dare to reduce the flight altitude too low, and always kept it at about 1,000 meters, and they also had to be on guard against possible attacks on the ground at all times, so these three helicopters were just a few small black spots in the eyes of Hou Rui.

But it doesn't matter, it's not the first time that Hou Rui has fought with the wealthy US military, he has made corresponding arrangements early, and handed over to the elves to take full responsibility, as for Hou Rui and these melee personnel, as long as they hide themselves and continue to maintain their physical strength.

"The helicopter is coming, ready for the Stinger!" Through the binoculars, when the elf saw the approaching helicopter, she yelled at the liaison and carried a Stinger surface-to-air missile.

On the rooftops of several other buildings not far from each other, witches, pocket watches and others also made the same action, they carried all the Stinger missiles provided by Ding Ye on their shoulders, and also roughly aimed at the targets they were responsible for, but they did not lock on.

The atmosphere on the battlefield suddenly became tense, in this ambush, whether the military helicopter can be beaten down is the key, after a while the wild dog team succeeds, then Hou Rui and they can continue the battle, but if the ambush fails, then they can only wait for the Black Hawk to slaughter the exposed elves!

Seeing that the airport was already close at hand, the helpless pilot could only reduce the flight altitude and prepare to land, and this was exactly the opportunity that everyone in the dingo squad was waiting for.

So after a short breath, the elf was the first to lock, and without hesitation launched the Stinger missile, only to see the elf her shoulder shook, accompanied by a dazzling flame into the air, a small missile flew straight to the Black Hawk helicopter in the night sky.

"Toot toot...... , alarm, we are locked by anti-aircraft weapons, evade, quickly evade. ”

At the same moment, in the cockpit of the Black Hawk at the front, the pilot of the helicopter was shocked, he screamed at the radio while twisting the rudder in his hand hard, and the co-pilot on the same Black Hawk, he also quickly slapped a button, and launched the decoy missile carried by the helicopter in one go.

However, this was still a step too late, and before the beautiful wings of the decoy missile could form in the sky, the Stinger missile had already approached the Black Hawk's fuselage, and then exploded into a ball of fire, enveloping the nose of the helicopter with high-speed shrapnel and merciless flames.

The flame that bloomed in the sky was as dazzling as fireworks from a distance, and the light instantly illuminated Hou Rui's face in the alley, and then quickly dimmed, but Hou Rui, who had been looking up, was already relieved, since a stinger could fight down, the rest of the stingers would basically not fall short.

In the next second, when the unfortunate Black Hawk began to emit a thick puff of black smoke from the nose of his plane, swaying and losing its stable flight attitude, several other tail flames also plunged into the sky one after another, and these delicate little things quickly rushed towards the second and third helicopters in the sky.

It turned out that the elves and others chose a very good chance to make a move, and it was the moment when the helicopter descended and decelerated, so under the siege of several Stingers, the two Black Hawk helicopters fell immediately, and then they also crashed into a building not far away, and a violent explosion occurred.

As for the Chinook, which was stuffed with soldiers in the cabin, after the nose of his plane was heavily damaged, he gritted his teeth and insisted on taxiing for a distance, and finally about a kilometer away, he fell heavily on the street, and it is estimated that the soldiers there also suffered heavy casualties.

Therefore, the dingo team does not need to worry about them for the time being, because after the failure of the first reinforcement, even the helicopter was shot down this time, so the Americans should adjust their strategy, rescue the wounded and reorganize their forces, so that when they attack again, they can fight for about 10-15 minutes in between.

So the elves threw the stinger's firing tube and quietly sneaked to the next attack position, because the camera installed on the Black Hawk may have already played their attack position to the base, and then continue to stay in place, that is a brainless behavior.

When the dingo team completed this round of ambush perfectly, Onesia and the others in the hangar, they were taking out a snow-white metal cylinder similar to a diver's back from the big box, and carefully and gently placed it on the ground.

“…… Anyway, they're doing a good job!" reported a sniper who had been left outside by Onesia, who had watched the three helicopters crash one by one, leaving them with high-class cargo on their shoulders, and the graphite area anti-aircraft missile had no chance to play at all.

"Understood, keep watching, we'll get out soon. After hearing the report of the sniper outside, Onesia just replied stiffly, and then she turned her head and announced to the subordinates with solemn expressions and sweaty faces: "The dingo team is doing a good job, we don't have to worry about being surrounded by Yankees for the time being, let's continue your work!"

Hearing Onesia's words, the other four men were visibly relieved, and then they continued to carry out the work carefully, transporting the cylinder, which was more than 1 meter high and about 50 centimeters in diameter, to the elevator entrance, and turned around to pick up other tools when they came back.

Speaking of attacking underground bunkers, this is actually a very difficult job, often requiring huge sacrifices on the attacking side, otherwise the mainstream countries in the world would not have developed generations of ground-penetrating bombs, but this time Onicia She didn't seem to plan to send people down, because her subordinates were actually busy at the elevator shaft one by one.

First, a rope was used to hang the skinniest man down and let him drill into the ventilation duct on the wall of the elevator shaft, and then an expansion agent was used to block the ventilation duct leading to the ground.

Then, the first silver-white cylinder was thrown down the elevator shaft, and when the sound of heavy objects falling back from 70 meters deep underground was heard, Onicia and his group all put on fully enclosed oxygen supply helmets, and then except for one guy lying on the elevator mouth and looking down, the rest of the people instinctively took a few steps back......

At this time, at a depth of 70 meters, the underground facility personnel who had already received the alarm from above concentrated all their manpower and arranged three lines of defense at the door of the elevator shaft, in the corridor in the middle, and in front of the cells of the two important prisoners, A and B.

In the center of the command of the defensive operation, it was still the head of the "1 Project" Admiral Terrence, when the staff around him looked a little cramped and uneasy, the expressionless general seemed calm, and even rarely cheered for his subordinates: "Reinforcements are already on the way, let's just hold on for a while, and then the soldiers who came from the barracks can destroy them." ”

But as soon as Admiral Terrence finished speaking, through the monitor screen in front of him, the admiral noticed with a few people around him that next to the elevator shaft where something fell just now, the six soldiers who were arranged on the first line of defense suddenly made extremely strange movements.

On the screen, the soldiers, who seemed to be on the verge of a great enemy, suddenly let go of their weapons and clamped their hands around their necks, and then some of them began to fall and roll on the ground in pain.

Although the clarity of the camera was limited, Admiral Terrence clearly noticed that the faces and hands of the fallen soldiers, that is, the exposed skin positions, were rapidly congested and swollen, and quickly turned into a sauce purple, which was uncomfortable to look at.

Then, in just ten seconds, six strong soldiers, the farthest one of them struggled to climb out 6-7 meters, and then remained in a twisted position and remained motionless, and he also left a stain of blood on the walls behind him and on both sides, which was particularly shocking.

"Admiral, this is ......" asked a stumbling staff member with an expression that showed a frightened expression.

Being able to enter such a secret federal facility, even if they are not well-trained soldiers, at least they are federal agents who have seen the world, but they can accept the enemy and life and death calmly, but when they encounter strange events that they cannot understand, they are also as vulnerable and panicked as ordinary people.

Soon, as if it was a chain reaction, when the guards in the corridor, who were in charge of the second line of defense, were also like their companions in front of the elevator, swelling, falling and dying in pain, Admiral Terrence finally reacted, and a shocked expression appeared on his dull face: "They used poison gas, put down the isolation door immediately, hurry!"

"Boom, boom, boom......" It wasn't until the sealed doors fell one after another in the underground facility, and the entire facility was quickly divided into more than a dozen separate small areas, that the spread of strange deaths finally stopped, but Admiral Terrence had already lost a third of his combat personnel.

So the admiral's face became very ugly, and his eyes kept sweeping over several monitor screens, until he confirmed with his own eyes that the remaining third line of defense was intact, and A and B in the cell were also safe and sound, and then the admiral asked gloomily: "Why didn't our ventilation and filtration system sound an alarm, could it be that our sniffers have also been damaged?"