The battle lasted more than half an hour before it finally stopped.


    Sun Cheng looked down at more than a dozen wounds on the body and suddenly understood why the ancient Cybertron soldiers didn''t solve all the shadow guards.


    "Forget it, evacuate for the time being. Wait here to prepare a batch of electromagnetic weapons, and then clean them up completely!"


    On the surrounding ground, more than 20 shadow guards were either cut in two, seriously injured or paralyzed by electromagnetic weapons.


    Even though sun Cheng now has almost leadership strength, he is still injured in the face of this fierce and fearless cold fighting machine.


    Should it really be worthy of the killing machine created by a Cybertron elder!


    Although sun Cheng had the same idea, his men even now have a considerable number of combat robots.


    But the robot he created can only be used to consume the cannon fodder soldiers bred by Starscream, which belongs to a lower level existence than cannon fodder.


    On the contrary, the shadow guards created by Maxim the great have almost the same strength as the senior Decepticons.


    Although the captain level of the patrol team is still a senior soldier, with the ruthlessness of fearing death, I''m afraid even the elite soldiers can''t take them in a short time. Even if they are solved in the end, they will be injured.


    In the waving room, collect the wreckage of the shadow guard that has been solved by yourself into the spherical space.


    These shadow guards can maintain long-term patrols in the underground ice lake near minus 100 degrees. It is obvious that their body materials have been treated against low temperature.


    Even sun Cheng couldn''t bear it. He had to consume the energy in the fire to make heat and keep the body surface from thawing.


    It can be seen that the scientific and technological content of this technology.


    Take it back to their Decepticon engineers for research. If you can study it and master it, it will be more convenient to move in extreme environments in the future.


    Sun Cheng glanced at the other side of the ice wall condensed on the lake. He had a feeling that there were shadow guards there, and there were not a few.


    He even suspected that those Cybertron soldiers before the ancient times chose to evacuate without doing all their work.


    The fundamental reason is that on the other side of the ice wall, there is likely to be an automatic manufacturing factory that can continuously manufacture shadow guards.


    The Cybertron warrior before ancient times should also be like him now. The body can''t fight in the extremely cold environment for a long time.


    If the result is as sun Cheng guessed, even now he can only choose to retreat temporarily.


    Even Megatron, like Optimus Prime, a powerful and experienced leader, will be seriously injured or even consumed when facing hundreds of senior soldiers.


    "Unfortunately, I can only withdraw back for the time being!"


    Although sun Cheng has regrets in his heart, he is not unwilling.


    Now that they have found this laboratory, it can''t run here. Sooner or later, all the things in it are theirs.


    Thinking of this, he turned and walked to the ice lake without hesitation.


    Before landing, sun Cheng turned around again, bowed his head, and looked at the mechanical giant under the ice lake who had been frozen for many years.


    He immediately turned and went ashore. He soon came to the hole, took out his heavy sword, cut off the ice in the passage like tofu, carried it to the hole leading to the ice lake, and closed the underground ice lake space again.


    During the battle with the shadow guards, sun Cheng noticed that they had never been close to the lake.


    Combined with the fact that the laboratory has existed for unknown years, but the shadow guards have not appeared in other parts of Mars, they should be ordered not to leave the patrol area without authorization when they were manufactured.


    Their patrol area should be near the underground ice lake.


    The purpose, no accident, is to take care of the mechanical giant in the lake who doesn''t know life and death and state.


    Sun Cheng soon returned to the top. More and more Decepticons have arrived and are busy.


    Sun Chenggang came out of the passage leading to the underground ice lake and was immediately noticed by the Decepticons present.


    A senior soldier who took over the command after he left also noticed his return at the first time.


    When he saw the dense small wounds on Sun Cheng, he hurried over and asked carefully, "commander, is it dangerous below?"


    "Well, for you!"


    Sun Cheng glanced at a new Decepticon engineer not far away and said, "Thor, ask the base to send a batch of liquid nitrogen and temporarily close the hole. It is strictly forbidden to enter without my order!"


    "Yes, your excellency!"


    With a wave of his hand, he took out several fairly complete shadow guard corpses from the spherical space and put them in front of Thor.


    "This is the shadow guard, a fighting machine created by the ancient Cybertron civilization. Everyone has the strength of at least senior soldiers and is not afraid of death. Send someone to return these to the base first and let them study them carefully!"


    The Decepticons nearby looked up curiously, even the senior soldier.


    The ability to leave a wound on Sun Cheng''s body has proved the extraordinary of these so-called shadow guards.


    What makes them feel more magical is that these combat machines can survive in the harsh environment of ultra-low temperature for a long time, and they have existed for so many years.


    Thor shot two scanning beams from his eyes and carefully examined the skeleton of one of the shadow guards for a while. His face had changed from surprise to surprise.


    "The body material of this combat machine is very special. It is a special alloy we have never seen before. It seems to be specially created to resist the severe cold environment... Commander, give us some time. Even if we can''t completely recover this special alloy, the performance should not be too bad!"


    Sun Cheng sounds very useful. As long as his batch of Decepticons engineers continue to study one after another, one day he may be able to climb the science and technology tree to the peak of the former Cybertron civilization, or even higher.


    But


    If they can''t fall before then!


    With a slight nod, sun Cheng stopped caring about how they handled the bodies of the shadow guards.


    He will stay in this laboratory for some time until sufficient manpower and material resources are mobilized from the Mars base to re excavate and put into use this laboratory of Maxim the great.


    During this time, sun Cheng and some Decepticons in the Mars base worked out a set of fortifications around Mars.


    Seeing that the main force of the Decepticon army led by the shockwave is about to arrive, even the quentafloxacin plunder fleet has been active in the nearby star region.


    Sun Cheng is not at ease if he doesn''t make preparations in advance.