In this way, after a period of operation, Liu Qingshan already owned nine mining vehicles. It should be said that these nine mining vehicles should be very good for a base. It can support the normal operation of the economy. More importantly, in the vicinity of that Tiberon deposit, Si has Liu Qingshan's increasingly powerful defensive combat force. Yes, that's really important. Seventeen mammoth tanks, where the passion was there, formed an extremely strong defensive barrier, on the one hand, effectively ensuring the safety of their mining vehicles to collect ore in that Tiberon deposit, and on the other hand, as the eastern front where there was also a possibility of an attack by alien aliens, these combat troops were stationed there, and it must have been greatly strengthened to further strengthen the security of the eastern front.

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However, not long after, the alien alien finally launched a fierce attack on the direction of the Eastern Front again. Yes, for them, since the offensive intentions of the northern front have been exposed, it seems too trivial to adopt a way of fighting in the east and attacking the west. Yes, since it has been seen through by the other party, then simply tear off any camouflage and completely expose the combat intent, because this qiē no longer matters.

However, under the premise that Liu Qingshan strengthened the defense of the Eastern Front, this attack by the alien aliens did not gain any advantage at all. Even, even if they used a large number of three-legged alien monsters, in the face of the fierce attack of more than a dozen mammoth tanks deployed there by Liu Qingshan, they would not be able to seize an inch of Liu Qingshan's land at all.

However, soon, Liu Qingshan also realized that just like this, it was not very fair to himself. So one thing, that is, now, the alien alien side seems to know more and more about the characteristics of the mammoth tank on its own side! Yes, it is.

The Mammoth Tank, as the main battle tank under Liu Qingshan, should be said to have a very good offensive and defensive balance. In this case, it should be said that it is a good choice to use them to compete with the opponent's three-legged alien monsters. Yes, it is.

However, in the end, if your own mammoth tank wants to be not at a disadvantage in the fight against alien aliens, it is very important to avoid long-range combat with the other party as much as possible. Because, that kind of alien alien long-range combat ability, that is indeed too powerful!

It was also relying on the melee advantage of his mammoth tank that not long ago, in the battle on the northern front, Liu Qingshan finally relied on the fierce ability of his mammoth tank to kill the opponent's three-legged alien monsters in one fell swoop. However, now, the alien alien seems to have been aware of this set of tactics of his own and has taken precautions!

That is, the opponent's three-legged alien monsters, when attacking, especially in the face of Liu Qingshan's mammoth tank, the headquarters is cautious, trying to always keep a certain distance from Liu Qingshan's mammoth tank, try to give full play to their long-range attack advantages, and avoid melee combat with the mammoth tank!

"Wow, damn it, it seems that the other party has learned weirdly! I know that I am strong enough to defeat the enemy! After Liu Qingshan saw this, he couldn't help but sigh.

Then again, it's no wonder that the other side is like this.

In such a situation, the mammoth tank on his own side wants to destroy a three-legged alien monster on the other side, and he doesn't know how much more he will pay! It seems that if you really respond to that sentence, if you want to achieve better results, you can't let the other party have any better preparation.

Looking at his mammoth tanks, under the attack of the fierce beams of those three-legged alien monsters in the alien alien side, they were scarred and mottled, and some of them had even begun to emit billowing green smoke, Liu Qingshan's heart was naturally very anxious.

At this time, General Chelsea, the commander-in-chief of the alien alien side, slammed his fist on the table at this time: "Hmph! Since our plan to divert the tiger from the mountain has not been able to succeed, then we will simply attack directly from the front! Now, taking advantage of our current strength, we still have a certain advantage! Otherwise, as time goes by, the opponent's strength will continue to recover, and the difficulty of fighting against the ironclad god of war will also continue to increase. ”

"Pass my order, heavy biological mechs and aerial biological warships, all attack! I want to see what kind of combat power the other side has! Hmph, today, Lao Tzu just wants to have a hard time with the other party, what's the matter? At this time, the alien alien commander, General Chelsea, seemed to have a trace of confidence in his eyes!

It's as if the shadow of the haze of failure not long ago has been completely wiped out by the time of the past few days. That crazy, bloodthirsty, brutal, ferocious look came out again. It was as if this world was his prey, its private property.

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At this time, in Liu Qingshan's combat headquarters, Liu Qingshan was looking at the electronic map in front of him very anxiously. Now, in his defensive position on the Eastern Front, the dozen or so mammoth tanks deployed there are engaged in a desperate battle against the alien alien three-legged alien monster that has once again attacked him.

Due to the alien alien aspect, the three-legged alien creatures that came one after another did not charge over as before, regardless of a qiē, thus creating too many melee opportunities for their mammoth tanks. Instead, he tried his best to keep a certain distance from Liu Qingshan's long-haired tanks. In this way, their long-range attack characteristics have naturally been maximized.

For a time, the mammoth tanks that Liu Qingshan deployed there were very badly damaged.

Under this circumstance, Liu Qingshan had already realized that his eastern defense line was too far away from his base camp. In particular, the mammoth tanks stationed here only have the original level, or the one-star veteran level, and there is not a single mammoth tank that can be upgraded to the three-star elite level. Only after smoothly upgrading to the three-star elite level can its ability to restore its health self-recovery ability. In that case, even if you are far away from the base and do not have the ability supply support from the base, you can rely on your own health to recover your ability and restore your own health. However, now, none of the more than a dozen mammoth tanks have been able to reach such a situation.

"Therefore, the top priority is to establish your own outpost base in your own Eastern Front defense area! Only then can you make your own of those damaged mammoth tanks, whose lives are worth the necessary restoration! Also helps those Mammoth tanks to level up better and faster! Liu Qingshan thought to himself.

So, in this situation, on the one hand, Liu Qingshan continued to command the dozen or so mammoth tanks, fighting bloodily with the enemy, and still relying on that kind of deep ditch tactics to fight to the death against the "three-legged alien monsters" that came over from the alien aliens.

On the other hand, Liu Qingshan issued an order to produce survey vehicles. Yes, only after the reconnaissance vehicle is produced, can he drive that reconnaissance vehicle to the front line of the Eastern Front and extend the sphere of influence of his main base there. There, build another tank factory of your own, which will allow you to produce Mammoth Tanks nearby, as well as provide the necessary health maintenance for those damaged Mammoth Tanks.

Before the reconnaissance vehicle was produced, Liu Qingshan decided to insist on using the method of "wheel warfare" to fight to the death with some three-legged alien monsters on the eastern front of his defense area. Specifically, in order to preserve their own strength, they can take advantage of the favorable opportunity when their combat strength is relatively abundant at this stage to divide the dozen or so mammoth tanks into two groups. The first group fights on the front line, and after taking a certain loss of health, it retreats back and then switches to the second group. Such repeated rotations, if properly operated, will certainly be able to achieve good combat results.

Yes, it is. At the very least, those mammoth tanks have very strong health and good defense. In this way, the wheel tactic of Tong Guò can naturally protect oneself and kill the opponent to the greatest extent. In this way, it can be avoided because it always refers to relying on a combat unit to persist in fighting, so as to lead to the end of crippled people.

Finally, not long after, a survey was finally produced. The reconnaissance vehicle, as the most important military facility for Liu Qingshan to expand the scope of influence of his base, plays a vital role in many cases. After all, the base camp military base, it is difficult to move. Unless it is a special case that requires a major move. However, in more cases, it is just necessary to expand the influence of your base to other places. For example, at this time, that's it.

And the survey vehicle happens to be the most important one that can achieve this purpose. A combat vehicle, in essence, is a military facility capable of perpetuating the influence of the base. However, the ease of movement is blown, which enhances its mobility and flexibility, so, in practice, they appear in a way that is at a distance.

Moreover, this special vehicle can not only move anytime and anywhere, but also has great mobility and flexibility, and at the same time, it can also interchange air transport aircraft, which can be carried by guò air transport aircraft, further improving his movement speed and improving his deployment efficiency. It can be said that as long as this reconnaissance vehicle can go anywhere, then the influence and influence of its own military base will also be able to reach anywhere. This, in many cases, in many situations, is very important. Now, looking at the survey car that has been produced, Liu Qingshan is very excited. Although summoning an air transport aircraft requires a production and construction fund, in this situation, due to the urgency of the military situation and the preciousness of time, it is very likely that you will lose 7 Mammoth tanks for a single minute. Therefore, it is to spend too much production and construction funds, Liu Qingshan also admitted.

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First, Liu Qingshan very generously spent 500 production and construction funds and called a large air transport plane. Then, the survey vehicle that had just been produced was loaded onto the large transport plane. Then, with an order, the large air transport plane, carrying the reconnaissance vehicle, took off from the base, flew straight into the sky, and flew towards Liu Qingshan's defensive position on the eastern front.

It only took less than half a minute for the large transport plane, carrying the reconnaissance vehicle, to land at the designated location. There, smoke was filling, and a fierce battle was going on between the two sides. Liu Qingshan still used the established tactics, using the wheel battle tree, and engaged in a fierce battle with the three-legged alien monsters that were constantly attacking from the alien alien side. On the alien side, some three-legged alien monsters tried to give Liu Qingshan's mammoth tank bean as far as possible, and used this way to maximize their long-range attack capabilities. Yes, the biggest feature of that alien alien three-legged alien monster is that its long-range attack is very powerful. The dark blue laser beam they fired, it seemed, the attack distance was long, the lethality was high, piercing the space, and roaring.

Between the camps, the space seemed to be distorted, and they constantly let out a whistling sound, forming an extremely powerful attack wave between heaven and earth. Under the attack of that dense and fierce dark blue beam, Liu Qingshan's mammoth tanks, although they adopted this tactic and took turns to fight, they still suffered heavy casualties, and most of their health had dropped to about 30 percent.

Despite this, for Liu Qingshan, he knows that now, his economic operation system has just been restored, and the number of mining vehicles has just been restored to nine. Therefore, at present, the resources at its disposal are not very abundant, and the production of combat forces is still limited to a certain extent at present.

In this case, although he produced 7 mammoth tanks, he had already sent them to the northern front of the defensive position. There, the deployment of troops was relatively empty, and it was the weak link of their own defense line. Although the main direction of attack on the alien side is the Eastern Front, it is difficult to predict that nothing will happen on the Northern Front. Therefore, it is actually very necessary to take precautions, make plans in advance, and strengthen the defense of the northern front in a certain way.

In addition, the location of his core military base, which is a military powerhouse, makes his heart. Prior to this, the five mammoth tanks that were originally deployed there, after being attacked by aliens on the northern front, had no choice but to squeeze to the northern front to strengthen the defense there, and had already lost more than half. Now, those mammoth tanks are still being repaired. Therefore, even now Liu Qingshan has produced several mammoth tanks, which are his own main battle tanks, and they are also the most important combat force. However, on the one hand, it is necessary to strengthen the defense of the northern front, and on the other hand, the location of its core military base also needs to deploy a certain amount of defensive forces in case of contingencies. Therefore, under such circumstances, it is difficult for Liu Qingshan to come up with more combat forces and invest them on the Eastern Front, and now, the entire Eastern Front battlefield is full of war and fierce battles, and almost all of them have been killed between the two sides. There, without exaggeration, is simply a huge meat grinder.

Soon after, Liu Qingshan immediately unfolded the survey vehicle that had just arrived. However, it takes a certain amount of time to unfold such a reconnaissance vehicle. It's not okay to be in a hurry. Although at this time, the battle on the front line was very fierce, and the losses between the two sides were heavy, and in the smoke of battle, another mammoth tank, which lost its last bit of health, exploded into wreckage and fragments with a bang, shot into the air, and then fell to the ground one after another.

Under such circumstances, how Liu Qingshan hoped that this reconnaissance vehicle could be deployed immediately, and then, he could build a chariot factory here to restore the health of those heavily wooded mammoth tanks. However, I can't eat hot tofu in a hurry. That's the truth.

However, despite this, the survey vehicle is the survey vehicle. It is indeed not that simple to go from a vehicle to a military facility with the ability to influence the base in an alternate base. It is not only the change in appearance, but more importantly, the equipment and parts inside will change significantly. And this kind of change, because it is more complicated, so naturally, it will take a considerable amount of time. This is a normal thing.

And now, on the front line of operations, fierce battles are still going on. However, in terms of alien aliens, the combat power of those three-legged alien monsters is no longer as strong as it was just now, and it seems that it has become the end of a strong crossbow. Of course, in this case, it is also a very favorable time for Liu Qingshan to make a final counterattack.