Chapter 89 (1/2)

David's ability to learn is terrifying, thanks to his strong spirit. Three long-range sniper guns are fired every few seconds under his control.

The shadow attendant judges the position of the first level Zerg in the air, while David manually inputs coordinates into the controller according to the observed position, which reduces the aiming time of each long-range sniper gun and increases the number of attacks.

Outside the city wall, as more and more beetles are killed, the green poisonous fog is getting thicker and thicker, almost to the extent of affecting the sight.

Even a part of the green fog floated above the city wall, and even David's No. 5 sniper control room began to appear a light green toxic fog.

David's protective uniform automatically turns on the internal circulation mode, which is supplied by the internal life support system.

The technology of producing oxygen has long reached its peak. Relying on the energy block on the protective military uniform, oxygen will be continuously supplied as long as the energy is not consumed.

So David didn't have to worry about the harm the green fog would do to him.

But the more and more thick poison fog actually affected his speed of discovering the first class Zerg.

”Cleaning mode is being turned on!” Hearing the notice from the control room, in the vision of the shadow attendant, there are many small holes on the wall, which spray out pieces of water mist.

These water mist and poisonous fog melt into green water and fall to the ground.

It seems that the city defense system has a long way to deal with the poison fog. Think about it. The Federation has been fighting with Zerg for thousands of years. During this period, the measures of Zerg have been prepared.

The exhaust system in the control room also started to work, to discharge the indoor poisonous fog.

When David first came to participate in the city defense, he was still a little nervous, but now he didn't have that feeling for a long time.

To tell you the truth, the city defense battle is safer than the battles he experienced in the illusion.

Those powerful first-class Zerg are either cleaned up by heavy laser cannons or blasted to pieces by Gauss cannons. Those who can escape are called out by long-range sniper guns.

And the whole battle process is to sit in front of the display screen, through the hands of the controller to complete.

When he received the call up order, he didn't even come home to get weapons, but now he found that he had no chance to use the second level sword and second level spear.

Besides, David also has the name of self-knowledge. Although he has the ability to master cold weapons at the level of Oracle, he does not have the exoskeleton armor of the first-class Zerg, which is the result of being crushed.

”Warning, warning, long range sniper guns No.5, No.6 and No.7 are overheating and cooling down. The cooling process will take 100 seconds!” Just after David attacked for ten minutes in a row, a line of prompts appeared on the screen in front of him.

Then all three of his long-range sniper guns went out of control.

Shaking his head, David let go of the controller.

At this time, the shadow waiter saw that the Zerg began to retreat, and soon disappeared into view.

”That's the end of it?” David said to himself doubtfully.

However, the identity Bracelet still shows recruitment. He still has control of three long-range sniper guns. The Zerg attack should not end so easily.

At this time, David received a video call request from his father Hans, and he chose to agree.

”David, where are you?” Hans's figure appeared on the identity bracelet, but he stopped half way through because he saw the environment David was in.

As a veteran of many wars, he knew where David was.

”How could you be in the sniper control room of the city defense?” Hans asked anxiously.

”Father, I was called here. It's safe here. Are you, aunt Bertha and little Eddie safe?” David didn't say much about himself. Instead, he asked.

”We're all fine. We're all moving to the shelter.” Hans answered, inquiring about David through his own authority. As David's guardian, he has the right to access all David's information.