And then there are white-level zombies, and they must reach the head or neck to lose their heartbeat.

And the red-level zombies above are even more difficult to deal with, even if they hit them, as long as they are not a threat of fatal necks and heads, then the speed is still extremely fast!

Therefore, under the continuous attack, the zombies have been greatly reduced, but everyone's hearts have become more solemn, because the high-level zombies are still approaching!

One by one, the zombies kept falling to the ground, the gray-level zombies were all wiped out first, and half of the zombies died, of course, the bullets consumed, but there were also a lot, more than 100,000 rounds of bullets, all consumed!

And then the soldiers also had to join the attack, the speed of these zombies was extremely fast, one by one the zombies kept climbing towards the city wall, ordinary people were still a little frightened, and the accuracy of the attack was reduced a lot.

And the soldiers let them take turns to change to deal with the zombies behind, these climbing zombies, let the soldiers wait for the headshots one by one.

Listening to the incessant gunshots, the heads of the three major mercenary groups also changed their faces greatly, and Xiao Long's eyes showed even more greed: "This oasis base is really rich and powerful, this bullet can be so wasted!" ”

"But that's fine, fortunately I drove away the zombies, otherwise, under such firepower, ......"

Xiaolong's scalp couldn't help but tingle, but thinking of his strategy, it was so successful, he couldn't help but be proud, if it weren't for him, even if the three major mercenary groups suffered heavy losses, they would not have thought of success!

Chen Rui has been calmly allocating troops and directing operations from beginning to end, the only cannon, as well as ten mortars, have not been used by him for the time being, but fifteen heavy machine guns, but ten have been used, and they began to frantically suppress the impact of zombies.

Otherwise, if there are more and more zombie corpses under the city, it will be quite dangerous.

This battle lasted directly until dark, and after it got dark, Chen Rui's heart became more solemn, darkness is not good for human beings, but for zombies, it is the best time, and their combat power can also be fully exerted!

"No matter the cost, don't worry about the bullets, shoot wildly!"

Chen Rui's heart became a little anxious, now the gray-level and white-level zombies have been completely killed, and the remaining zombies are less than five thousand, which doesn't seem to be much, but they are all zombies above the red level, and most of the red-level zombies have been killed!

Among them, the yellow-level zombies already have a faster speed than humans, and their strength is three or four times that of humans, and under their impact, the city walls even tremble a little.

"Heavy machine guns, all sorted!"

"Snipers, focus on attacking zombies above the green level, the reconnaissance team wears night vision devices, pay attention to the blue-level zombies, and even more advanced zombies!"

Last time, more than 300 high-level zombie teams all appeared blue-level zombies, this time it is impossible that there will not appear, and there may even be more powerful zombies, Chen Rui's heart is solemn, these more advanced zombies are quite terrifying, and they must be paid attention to.

"How's it going?"

Zhao Feng, who had just come back, asked, just now he deliberately shuttled back to modern time and space at the fastest speed, and purchased ten civilian night vision devices at the fastest speed, regardless of the cost, which is why Chen Rui has a night vision device.

Although these night vision devices are not top-notch, they can observe the existence of high-level zombies at night, which is extremely important.

Night vision device night vision Zhao Feng only thought of it, in fact, although the zombie is considered a living dead, the thermal response is still there, and the more advanced the zombie, the higher the thermal response when gathered together, and the value of the night vision device is highlighted at once.

"For the time being, the zombies haven't attacked yet, most of the zombies have died, but the rest are zombies above the red level, and the number of yellow-level zombies is huge, which poses a great threat to the city!"

Soon the guard hurriedly spoke.

Now there are still four thousand zombies left, but there are less than one thousand red-level zombies, while there are more than two thousand yellow-level zombies, and five or six hundred green-level zombies.

Zhao Feng's face changed suddenly, there are so many zombies, there must be high-level zombies, and there can't even be only one blue-level zombie, which has not been discovered yet, this is an extremely dangerous signal!

And the leaders of the three mercenary groups, their faces have changed at this moment, for such a long time, the zombies still do not have much damage to the Oasis Base, and there is no possibility of attacking, which makes them all a little anxious.

But the attack of the Oasis base is even more rapid, fifteen heavy machine guns, all joined, every minute is a bullet that can shoot out tens of thousands of bullets, these bullets, fiercely blocked the prospect of zombies, a large number of red-level and even yellow-level zombies are dying one after another!

And the green-level zombies that leaked out were also under the attack of the three sniper squads, constantly dying rapidly, and it seemed that victory was not far from the oasis base!

"Damn, where did they get so many weapons, so many bullets!"

Xiaolong's face changed in an instant, this seemed to be an endless attack, and it also made his scalp tingle, after destroying the zombies, would they have the ability to capture this oasis base!

The sky is getting darker and darker, and the red-level zombies have been wiped out, and the yellow-level zombies and green-level zombies are also suffering heavy casualties, and the number of zombies is only more than a thousand!

And these more than 1,000 zombies made Chen Rui unable to calm down.

"The Commander has found a blue-level zombie!"

"Found a blue-level zombie!"

"Blue-level zombies have appeared!"

………………

In the channel, one by one the night vision device observers are all reporting, and a series of reports represent that there are more than twenty blue-level zombies.

And at this moment, a night vision device observed the hand, and said in a trembling voice: "Found a more advanced zombie ......"

Yellow-level zombies and green-level zombies are nothing, and what worries Chen Rui is the blue-level zombies, and now there are even more advanced blue-level zombies, although it is only one, but it is already quite terrifying!

"What a blue-level zombie!"

Zhao Feng's face also changed greatly, the speed of the blue-level zombie is four points three times that of humans, but the strength is twenty times that of humans, even now, his speed is not as good as this blue-level zombie, such a zombie is simply invincible!

"How many shells do we have?"

Zhao Feng yelled with a hideous face, and then said into the walkie-talkie: "At all costs, all mortars and cannons will be called, and this blue-level zombie must be killed!" ”

How terrifying the blue-level zombies are, this Zhao Feng knows, and his heart is also nervous, you must know that according to the information of the wasteland base, the blue-level zombies ignore the attack of heavy bullets at all, as long as the armor-piercing bullet can damage it!