Doomsday Frenzy

Chapter 3 upgrade and transformation, M4A1-S with powerful performance!

A large number of biochemical mutants poured into the hall like a tide.

Hoarse and deep roars followed one after another.

In the eyes of every secondary zombie, there is a desire for killing and flesh and blood, which is creepy.

Some biochemical ghosts have even activated the rampage skills.

Wrapped in the pale green whirlwind, the speed of movement suddenly increased to a higher level, and it rushed towards Li Chao and others like an arrow flying from the string!
"Fire with all your strength, and don't let them get close!"

Li Chao yelled at his teammates.

At the same time, he was the first to raise the M4A1 automatic rifle in his hand, and fired at the approaching corpse tide.

The line of sight function greatly facilitated Li Chao's observation and aiming.

The crosshair keeps turning red.

Li Chao's lion pulled the trigger one after another, firing a series of bullets.

【Ding!The host kills the secondary zombie*1, and gets reward points*3! 】

【Ding!The host kills the secondary zombie*1, and gets reward points*3! 】

【Ding!The host kills the first-order biochemical ghost*1, and gets reward points*10! 】

【Ding!Host kill...]

A beep sounds.

At the same time, the kill icon keeps appearing below the field of vision.

Li Chao held M4A1, the standard black weapon of the defender mercenaries, and fought tenaciously against the rapidly approaching corpse tide in front of him.

Beside him, several other Swart teammates are also sticking to other directions.

Yet these biochemical variants are seemingly endless.

Although Li Chao and others were being wiped out every second, the scale of the corpse tide had never been significantly reduced.

There is still a steady stream of people coming to the hall.

The number of hotel tourists is already huge because it is in the peak tourist season.

After the Blitz organization released the biochemical virus, almost all of these tourists mutated and became secondary zombies or biochemical ghosts.

Faced with thousands of corpses swarming in.

With the insignificant power of Li Chao and others, it is impossible to wipe them all out!

And even worse.

Among the hungry and vicious biochemical mutants.

Li Chao even found a few figures that were stronger than the first-order ghosts.

He was staring at himself with blood-red eyes.

【Ding!The detection was successful, and the second-order biochemical ghost*4 was found! 】

A crisp beep sounded.

Li Chao opened fire while carefully checking the information panel:

Type: biochemical ghost

Level: second order

Skill: Rampage (moving speed increased by 25% within seven seconds)

Threat Level: High!

Weaknesses: head, chest energy core
Compared with the first-order, the biochemical ghost that has reached the second-order is undoubtedly a more powerful existence.

Whether it is speed, strength or defense, the second-order biochemical ghost is better than the first-order.

no doubt.

These four second-order biochemical ghosts are definitely a serious concern for Li Chao and others!

Moreover, because of the long-term fight against the tide of corpses.

Whether it was the teammates around him or Li Chao, they were all at the end of their rope.

Ammunition was scarce and the body was exhausted.

The state is not as good as before.

It is difficult to fight against such a powerful existence as the second-order biochemical ghost.

And the other side.

Led by these second-order biochemical ghosts, the tide of corpses began to attack more and more violently.

The secondary zombies acted as cannon fodder at the front, constantly consuming the precious bullets of Li Chao and others.

The second-order ghosts and first-order ghosts are the main force of the attack.

With the blessing of the berserk skill, these red figures rushed towards Li Chao and others again and again, and the steel blades that cut iron like mud reflected bursts of cold light.

The current situation is like adding fuel to the fire.

Dangerous!

If this continues, when the ammunition is exhausted and the firepower to resist the tide of corpses is completely lost, everyone will undoubtedly die!
Under desperate circumstances.

Li Chao pinned his hopes on the system.

upgrade!
One of the advanced features of the system.

By consuming different amounts of reward points, the host's current weapons, equipment, and props skills can be advanced and strengthened, and the quality level can be improved, so as to obtain stronger combat effectiveness!
This is currently the only way for Li Chao to resolve the crisis!
As long as the black quality M4A1 can be upgraded to become a more powerful weapon, then it will definitely be able to break out of the encirclement!
"However, the reward points are not enough!"

Li Chao thought to himself.

根据系统的显示，想要将M4A1升级为更高级的M4A1-S，足足需要300奖励点！
But now, Li Chao only has more than 200 reward points in his hand.

There are less than a hundred vacancies to be filled!
then.

Li Chao hurriedly said to his teammates:

"The few second-order biochemical ghosts will be contained by you, and I will be responsible for eliminating more secondary zombies and first-order ghosts!"

"Ok!"

Several teammates did not hesitate, and decisively carried out Li Chao's orders.

Turn the gun and use the black quality M4A1 in your hand to fight against the second-order biochemical ghost with stronger defense, speed, and attack.

But the strength of the two sides is still too disparity.

The onslaught of the second-order biochemical ghost gradually exceeded the limit that several teammates could bear, and could no longer last for too long.

And Li Chao here.

In order not to waste the precious time won by teammates.

He held the M4A1 automatic rifle tightly in his hand, aimed at the location where the zombies gathered, and fired continuously at high speed and precision.

Da da da……

There were bursts of gunfire.

The bullets in the magazine were fired one by one at an astonishing speed.

【Ding!The host kills the secondary zombie*1, and gets reward points*3! 】

【Ding!The host kills the secondary zombie*1, and gets reward points*3! 】

【Ding!The host kills the first-order biochemical ghost*1, and gets reward points*10! 】

【Ding!The host kills the secondary zombie*1, and gets reward points*3! 】

【Ding!Host kill...]

Killing notification sounds appear one after another, and the reward points are increasing rapidly.

at last.

When teammates are about to be unable to hold on.

The reward points accumulated by Li Chao have finally broken through the [-] mark and can be upgraded!
【叮！是否花费300奖励点，将M4A1（黑色品质）升级为M4A1-S（绿色品质）？】

"Yes!"

Li Chao answered decisively without any hesitation.

next moment.

A turquoise light emerged.

Enveloping the M4A1 in Li Chao's hand, magical power surged, and the gun was quickly transformed invisibly.

The appearance of the M4A1 has changed.

Not only is a thick and long silencer installed in the front of the muzzle, but the gun body is also covered with a layer of camouflage.

Even the internal structure of the gun has become more sophisticated.

【Ding!The upgrade is successful, congratulations to the host for getting the green weapon——M4A1-S! 】

The crisp mechanical sound of the system sounded.

In Li Chao's hands, the original black iron M4 has become a brand new firearm.

M4A1-S!

Look at this automatic rifle with camouflage paint and a silencer.

Li Chao was very excited.

Green weapons are more advanced.

Its performance in all aspects can be called powerful, and it can even crush the black quality.

just now.

With a powerful weapon like the M4A1-S.

He can finally lead his teammates to fight a bloody path in this endless tide of corpses!
(End of this chapter)