In the end of the world, I want to be the queen of zombies

Lin Lu couldn't help but ask Zhou Shuyao, "Sister Yaoyao, do you think they will retreat?"

Zhou Shuyao shook her head and said, "No, they are here for Ali. Maybe when you met them before, you exposed some information. They want to capture Ali and do experiments on her."

"It doesn't matter. Since they don't want to leave, let them stay forever."

Zhou Shuyao looked up at the night sky in the distance, her eyes gradually turning cold.

She loves Phoenix City and little A Li very much, so she will never allow anyone to destroy Phoenix City or hurt Su Li.

On the other side, Su Li, who was driving back, kept accelerating madly, and the tires were about to smoke.

But how can a car on the ground compare in speed to a helicopter in the sky?

Li Mianmian comforted her softly, "Don't worry, Sister Susu, maybe they are not heading for Phoenix City?"

Su Li said with a heavy face, "No, they must be heading for Phoenix City. Only Phoenix City is worth their efforts."

Su Li only knew the approximate locations of the other two survivor bases in District 10.

The location of Phoenix is ​​definitely not on the route between any two bases.

Now most of Phoenix City’s armed forces are brought by Su Li to open up new areas, and the internal defense can be said to be very weak.

If these people are really heading for Phoenix City, can the people on the island withstand the attack?

Su Li is really worried and scared now.

What she worried about was that Phoenix would fall.

What she was afraid of was that when she returned, Xiaolu, Xiaoyue and the others would have turned into cold corpses, and even their crystal cores would have been dug out.

Even corpses would be taken back for experiments.

Thinking of this, Su Li couldn't help but feel anxious and wished she could fly back to Phoenix Island immediately.

But the distance of her space folding transmission is very short. Even if used continuously, the speed may not be as fast as driving.

She could only keep her feet on the accelerator pedal, repeating to herself, faster, faster.

Under the dark night sky, with the roar of the propellers, Captain Li looked at the Phoenix City getting closer and closer, and said into the headset, "Everyone, pay attention. We are about to arrive at our destination, Phoenix Island."

"Once you reach Phoenix, all personnel will immediately begin rappelling. After landing, cross-cover and be careful of zombie attacks on the ground."

"All helicopter weapons are unlocked and ready for fire support at any time."

As soon as Captain Li spoke, a "received" sound came from the headset.

Everyone held their weapons tightly and waited with bated breath for the rappelling to begin.

On the city wall of Phoenix City, Zhou Shuyao looked at the red cursor on the computer screen that had crossed the ten-kilometer warning line, and a cruel smile appeared on her face.

"Although we have only modified 6 aircrafts for now and the ammunition reserves are not much, it should be enough."

Zhou Shuyao muttered to herself, and after waiting for another half a minute, she reached out and pressed a red button on the screen.

In an instant, a secret door opened simultaneously on the city wall of Phoenix City and on the rooftops of the four corner towers.

Six modified 6mm twin anti-aircraft guns were raised from their hiding places to the rooftop.

After Zhou Shuyao's modification, these anti-aircraft guns have a maximum range of meters, an effective range of 9500 meters, a maximum firing height of 8700 meters, an effective firing height of 6500 meters, and a maximum firing rate of 480 rounds per minute.

In order to solve the problem of sustained firepower, Zhou Shuyao also converted the original magazine feed into fully automatic loading.

Moreover, each of the high-explosive armor-piercing shells used by the anti-aircraft guns was implanted with a miniature proximity fuse rubbed by Zhou Shuyao's hands.

This little thing, with the assistance of the automatic search module, can intelligently adjust the optimal detonation distance when each shell is fired.

So even if it doesn't hit the target head-on, it will explode at the best position and cause fragmentation attack on the target.

The only regret is that due to the short time, she produced too little ammunition, and each anti-aircraft gun currently has only 240 rounds of ammunition.

If you go full throttle, you have to finish the job in 15 seconds.

As the attack order was given, the automatic search-for-enemy system on the anti-aircraft gun and the simple radar on the island began working at the same time, instantly locking onto the approaching group of helicopters.

"Bang bang bang..."

The next second, these old antiques let out a ferocious roar, and countless high-explosive armor-piercing shells shot towards the target through the muzzle.

The 37mm shells whizzed through the night sky.

Since the anti-aircraft gun modified by Zhou Shuyao uses automatic enemy search and does not require manual operation, it is not loaded with tracer bullets.

So all the shells seemed to disappear after being fired, disappearing into the night sky without a trace.

"boom!"

In the silent night sky, a helicopter at the front of the team suddenly burst into a ball of sparks, the entire propeller was blown off, and the wreckage of the aircraft spun and fell towards the ground.

"Boom boom boom~"

Another burst of explosions came.

Because the attack came too suddenly, the helicopter in front of the formation was hit directly by the anti-aircraft gun before it could react.

The five helicopters instantly turned into a fireball.

"Fuck (a plant)!"

"It's anti-aircraft guns!"

"Attention all helicopters, take evasive action immediately."

"Preheat the rocket launch nest and launch a counterattack immediately!"

"No, Captain Li, our airborne light rockets have a range of only 3000 meters. We can't hit them at this distance."

For a moment, the entire communication channel was in chaos. They never imagined that there would be anti-aircraft guns on Phoenix Island.

"Again, I would like to remind you that the airspace within 20 kilometers of Phoenix Island is the exclusive airspace of Phoenix City. No foreign flying objects are allowed to enter."

"Please evacuate our airspace immediately, otherwise we will continue to launch fire strikes."

Zhou Shuyao's cold voice was heard again in the helicopter formation's communication channel.

It's not that she didn't want to wipe out the enemy, but the anti-aircraft guns had limited ammunition reserves.

She was not sure that she could destroy the entire helicopter formation with her remaining ammunition.

The previous wave of attacks was just to catch the enemy by surprise, so the effect was so good.

However, when the enemy's helicopter starts to maneuver at high speed, even with the help of the automatic search module, it is not an easy task to hit the helicopter with anti-aircraft guns.

After all, the flying speed of anti-aircraft artillery shells is only 920 meters per second. It takes nearly 6 seconds for a shell to be fired from the muzzle and fly to the target 7 kilometers away.

During these seven seconds, the enemy's helicopter had already left its original position.

Therefore, it is basically impossible to shoot directly. The only thing you can do is calculate the flight trajectory of the helicopter and then shoot in advance.

However, the anti-aircraft artillery needs sufficient ammunition to support its advance firing.