Zhao Xuan was completely familiar with zombie categories in his previous life, and was very familiar with the advantages and disadvantages of various varieties of zombies.
Mutant zombies that have evolved certain abilities will inevitably have obvious weaknesses in other aspects.
At this point in the war, except for one mutant zombie with very distinctive characteristics, basically all other mutant zombies have appeared.
The kind of zombies that didn't appear were the heavy-gun zombies.
The so-called heavy-gun zombies are zombies that evolve a barrel-like component on their backs, and then use this barrel to emit energy to the outside. This kind of energy is extremely explosive and has a certain degree of biochemical toxicity, so it is also called biochemical energy bomb.
A heavy cannon zombie can use up its stored energy by firing it three times. If it wants to carry out a second attack, it must store energy for at least three minutes.
This kind of zombie has unparalleled power in group battles, but its own mobility, defense, and individual attack power are much worse than ordinary zombies.
In the current special environment, if we want to say which mutant zombie poses the greatest threat to humans, it must be the heavy-gun zombies.
The appearance of the sharp arrow zombies made Zhao Xuan think of the heavy artillery zombies, but the heavy artillery zombies did not appear, making Zhao Xuan think that the heavy artillery zombies had not yet evolved in this zombie group. But now Doudou's crisis warning suddenly made Zhao Xuan think of it.
However, even if he thought of it, Zhao Xuan could not immediately come up with a countermeasure.
If it was in a field environment, once a heavy-armed zombie was discovered among the corpses, Zhao Xuan might be able to use his special skills to rush into the corpses and kill them quickly. However, the current battlefield does not provide him with enough room to dodge.
Now, if there are heavy-artillery zombies attacking at a depth of 3 or 4 hundred meters among the zombies, Zhao Xuan has no choice but to retreat quickly and activate the last measure to deal with it.
"Brother, the danger is getting closer and closer." Doudou suddenly reminded.
"They are about to attack." Zhao Xuan's eyes narrowed and he looked closely at the group of corpses in front of him.
As soon as he finished speaking, Zhao Xuan saw seventy or eighty bowl-sized dark red light groups rising from the corpses in his passage and the passages on the left and right, and they quickly smashed towards the humans.
"how could this be?"
Zhao Xuan was shocked for a moment.
After he guessed the heavy artillery zombies, he thought that these heavy artillery zombies would be evenly distributed on more than a hundred passages, but he didn't know that they were concentrated in the three middlemost passages.
"I understand, it's him!" Ao Yonghe's figure flashed in Zhao Xuan's mind.
Only the existence of Ao Yonghe can reasonably explain the situation at hand.
However, the situation was urgent and Zhao Xuan had no time to think about Ao Yonghe. He must deal with the crisis immediately.
"All spirit warriors will intercept the air immediately. Others should protect themselves."
Zhao Xuan only had time to shout out a word before he quickly launched a beam of fire into the sky and detonated the two light groups that hit him in the air.
Other spiritual warriors also hurriedly fired energy into the air.
Violent flashes of light erupted continuously over the team. A large part of the light group was intercepted before it hit the ground, causing a violent explosion.
However, a very small number of light groups slipped through the net and fell into the team.
Three artillery shells fell into the team on Zhao Xuan's passage, and four on each side of the passage.
'ah......'
No less than 10 Yunling City soldiers were immediately overturned by the explosion energy around the impact point of each shell.
Some of these overturned people had broken arms and legs, some died directly, and some were blown away and fell into a deep pit.
The total number of casualties in the three passages instantly exceeded one hundred.
Zhao Xuan's heart suddenly tightened.
This is the first time Yunling City soldiers have been killed so quickly.
Before he could say anything, a second batch of shells flew out of the zombie group.
"defense!"
Zhao Xuan roared loudly and took action again to intercept the cannonballs flying towards him.
After blocking the shells, Zhao Xuan looked up and saw that this round of shell attacks had caused more than a hundred casualties to Yunling City.
"Ao Yonghe!"
Zhao Xuan gritted his teeth and roared, his heart filled with hatred.
But he could not issue an order to accelerate the retreat at this time because the third round of shells had not been fired yet.
He is well aware of the "three consecutive hits" attack mode of the heavy artillery zombies.
If he starts to retreat at this time and neglects defense, the third round of shells will definitely cause huge losses to his team.
Finally, the third round of shells came out.
This round of attacks also took away more than a hundred people from Yunling City.
"Retreat at full speed! Spiritual warriors, beware of air attacks." Zhao Xuan immediately issued an order.
The team immediately retreated at full speed.
"It's a pity that the energy storage time of heavy artillery zombies is a little long. Otherwise..."
Ao Yonghe hid among the corpses and shook his head regretfully.
If the energy storage time of the heavy artillery zombies was shorter, he would have a great chance of wiping out most of Zhao Xuan's most elite thousands of troops.
What he also regrets is that the cannonballs of the heavy artillery zombies fly a bit slowly, giving human spiritual warriors a chance to intercept them.
"But this is okay. As long as you don't rush in to deal with the heavy-artillery zombies, you will either die or give up this operation. As long as you give up this time, the zombies here will become a hurdle that you will never be able to overcome. I There will be enough time to achieve my goal." Ao Yonghe then thought with satisfaction.
While driving the heavy artillery zombies to move forward with the zombies, he waited for the heavy artillery zombies to finish storing energy.
"All teams obey the order, and the last line of defense will be activated soon. They all retreat at full speed."
When Zhao Xuan retreated, he shouted to convey the message to everyone in the coalition.
Qin Kedi and others on other passages were stunned for a moment and immediately began to retreat at full speed.
They basically saw that Yunling City's mid-line team suffered big losses before.
"Well, there is one last line of defense? What is that?" Ao Yonghe was also stunned.
"Huh, this is the situation now. Apart from risking your lives, what else can you do? Just pretend to be a ghost." Ao Yonghe then smiled coldly.
He was very confident at this time and felt that Zhao Xuan would not have any more tricks on his side.
So what if there is a trick? It's just taking zombies' lives to fill it.
The human coalition forces retreated quickly, but they quickly broke away from the corpse group, and the distance from the corpse group became farther and farther.
Soon, the coalition forces ran to a place 1 kilometer away from the other edge of the pit trap.
On the floor of the passage in this place, there are more than a dozen exposed cables with a diameter of 4 centimeters. The distance between each cable is about 1 meter apart.
The retreating coalition soldiers looked at these cables with a look of fear on their faces.
Even though they knew that these cables posed no threat to them, they still did not dare to step directly on the cables. Instead, they carefully stepped on the gap in the middle and stepped across.
