The team regained the queue and continued towards the research center.

However, with the shock just now, the team was obviously more cautious, not only did the distance between the players get closer, but the speed of travel also slowed down a lot.

Running forward in small steps with the team, although Sun Cheng was curious about what important information he wanted to report to him about revenge, he was afraid of the other people beside him, so he could only suppress that curiosity for the time being, and prepare to look for opportunities after arriving at the research center.

Unexpectedly, he only ran forward with the team for a few minutes, and suddenly the revenge in his arms shook again.

"What's going on? Why do you contact me twice in such a short time? ”

The revenge reminded him again, which made Sun Cheng feel uneasy in his heart, he knew very well that the revenge that he had been trained by himself, if there was no urgency, it was absolutely impossible to remind himself twice in a row in such a short period of time.

At the moment, he didn't care about exposure, and while running, he groped for a revenge-strengthened Bluetooth headset from his pocket, opened it and brought it to his ears, then pretended to wipe the rain off his face, reached out to cover his mouth and nose and asked softly in Chinese: "What's the situation?" ”

"A special unit using optical stealth was found nearby, tracking the owner......" The cold mechanical voice immediately rang out from the Bluetooth headset.

"Optical invisibility?!"

Sun Cheng couldn't help but be stunned when he heard this, he knew the concept of 'optical invisibility', which simply means using special materials and technologies to refract, bend and even reflect light, or simply create a layer of stance around the object to achieve the effect of invisibility.

As China's leading science and engineering institution, Nanjing University of Technology also has this kind of related issues and research, as far as he knows, not only the domestic optical stealth technology is still in the embryonic state, but it is theoretically more advanced European and American powers, and it will be difficult to achieve optical stealth in the real sense in the next thirty or fifty years.

In the other world, technologies such as 'optical invisibility' have also appeared on the planet Cybertron, and Sun Cheng has seen from the confused memory data that there are indeed Decepticons with the ability to become invisible during the Second Civil War.

However, this type of technology is very difficult for mechanical life.

The precision performance of both the Decepticons and the Autobots is beyond imagination, their fire can provide the energy of a power plant, the processing efficiency of the core is far greater than that of any supercomputer known to man, and the powerful memory and storage functions can easily save all the building data on any terrain, and when the data is scanned again, and when the data is scanned again, and there is abnormal data that cannot be captured by the eye, the location of the invisible unit can be easily locked.

As a result, optical stealth technology was only prevalent on Cybertron for a very short period of time, and was quickly swept into a corner.

The Vengeance body does not have a spark source, and the core is far inferior to the Confused Body, but it can easily capture an 'optical invisible' unit, which shows that the stealth unit it discovered uses far less technology than Cybertron.

Sun Cheng did not doubt the authenticity of its words!

Rather than believing in vengeful loyalty, Sun Cheng believed more in the fruits of his busy work in the other world, and he left multiple means within the two Decepticon cores that he brought back to the real world, which could ensure that they were completely loyal to him.

So now, when he heard that Vengeance had reported to him that it had spotted a cloaked unit using 'optical invisibility' around him that was following Sun Cheng and them, his heart only sank for a moment before it was raised again.

"Are you sure you can solve it? Revenge? ”

He asked again in a whisper in Chinese, and it was difficult to hide the anticipation in his words.

The invisible unit that appeared on the island inexplicably, although Sun Cheng couldn't guess its identity for a while, it was an indisputable fact that it was following itself, and it was obviously a threat to himself and others.

Since Revenge was able to capture this stealth unit, Sun Cheng didn't know what the other party's strength was, but he realized the 'optical invisibility' that was difficult to complete with the technology on the earth, which couldn't help but remind him of the new world fusion on the night he landed on the island.

"Could it be that this invisible unit, like the dinosaurs on Isla Nublar, is the product of world fusion?"

If it was really as he had guessed, then the [Predator], who he had not had a clue for the past two days, had finally found a way.

The vengeful answer was affirmative, "I can!" ”

"Very well, don't do anything until the target is a direct threat to me!"

That's enough!

Sun Cheng didn't do any more instructions, and by wiping his face again, he took off the Bluetooth headset on his ear and put it back in his pocket, and he calmly followed the team and continued to run towards the research center.

"Ah......h

As he was about to cross the hills and walk out of the woods on the hills, a scream suddenly came from the back of the line.

Major Ducky hurriedly waved his hand to signal the team to stop, and shouted loudly: "What's the situation? ”

"It's Bernard ......"

Private Harun's voice came, faintly tinged with fear, "Hell, he's suddenly gone, Major!" ”

Major Ducky gave Billy a look and motioned for him to be on guard, while he pushed Sun Cheng away and walked towards the back of the group.

Sun Cheng also turned around and glanced behind him, only to notice that it was Bernard, a medical soldier who was at the back of the line, who was missing.

"Major, here ......"

Mike, the black officer with a heavy machine gun, took off his hat from his head, and as if he had noticed something, he motioned for Major Dutch to lean over, "There are two fresh trails of dragging, like ...... drawn from the roots of shoes"

Looking in the direction of his finger, Sun Cheng and the others saw two more shoulder-width parallel marks on the ground, extending from the path they were walking on to the depths of the woods.

Major Ducky crouched down again and looked carefully at the ground, he reached out and touched a stall of sewage that had not yet been diluted by the rainstorm, put his finger in front of his nose and sniffed it, his face quickly darkened.

"Bloodstained, damn it!"

Tie Qing had a face, his cold gaze swept over everyone present in turn, and then fell on the black officer Mike and Private Hawkins, and then said slowly: "Be on guard in place, Mike and Hawkins, you two come with me!" ”

After saying that, he raised the weapon in his hand, took out the grenade launcher from his tactical backpack again, put it on, and took the lead to chase it into the woods along the trail.

Behind his back, Sun Cheng pressed the revenge that shook again in his chest, and he knew that the invisible ghost finally couldn't help but make a move.

ps：

1. I didn't feel good when I came back after work, and I made up for it [Tokyo Foodie] and forgot the time, and it was ten o'clock if I didn't pay attention!

2. Thanks to the four readers of 'Feng Family Ben Less', 'The Birth of a Poor Ghost', 'Take a look?', and 'Please be cautious if there is a pit ahead'.