The laser passed through the passage of more than 280 meters, leaving a round hole the size of a bowl and several meters deep in the wall at the end, before exhausting the last energy, and Lu Ziming felt a burst of pain.

"You don't know how to reduce the power of the laser cannon and waste so many of my crystals!"

Old Qian was stunned by the power of the laser cannon, "This is already the lowest gear, it's too perverted......!"

"Shoot, the mutant ants are rushing over again!"

The laser cannon attacks a straight line, not a plane, and it is not a whole, and it is okay to deal with large mutant creatures, but it is not only wasteful to deal with the tide of cannon fodder mutant ants, but the effect is not high, and it is not even as good as the effect of four heavy machine guns.

At this time, the mutant ants surged up again, and the firepower on the position could only just suppress the attack of the mutant ants, but after a long time, after the heavy machine gun was overheated and dumb fired, it had to be forced to retreat by the mutant ants.

"What to do! How can I stop the attack of the mutant ants", there is no napalm incendiary bomb in hand, and it is obvious that the attack of the mutant ants cannot be stopped with ordinary flammable materials, and if we continue to fight, it will only delay the attack time of the mutant ants.

"Gauss weapons!" Lu Ziming's thoughts suddenly flashed, how could he forget about Gauss weapons.

According to the hierarchy of civilizations, the first-level civilization is a primitive civilization developed on the basis of planets, and the development of human beings on the earth for thousands of years has stepped into the sequence of second-level civilizations.

The second-level civilization is a low-level civilization that has mastered the navigation in the star system, has nuclear technology, the second-level peak civilization can fly at a speed of more than 30% of the speed of light, and the means of attack are mainly kinetic energy weapons, laser weapons and high-yield hydrogen bombs, and the second-level peak civilization has the technology to use low-level energy weapons, and can manufacture city-level spaceships, and the means of defense mainly rely on the fleet's own armor defense, and the navigation technology is controllable nuclear fusion.

If you reach the level 3 civilization, you will master the energy shield technology and the energy recoil propulsion navigation technology of the civilization, the level 3 civilization can create municipal and provincial spaceships, the speed will not exceed 50% of the speed of light, the attack means use more mature energy weapons and light weapons, and the defense means are energy shields.

According to this civilization level, the earth's human civilization can only be regarded as a second-level civilization in its infancy, thermal weapons are the most common means of attack, and a little higher is Gaussian weapons and laser weapons, as well as large-yield hydrogen bombs, etc., Lu Ziming's energy gun and laser weapons are the products of the second-level civilization, belonging to the middle and late stages of the second-level civilization, powerful but lacking the support of controllable nuclear fusion energy, no matter how powerful it is, it is also a waste.

Gauss weapons are different, Gauss weapons are magnetic field weapons, and when firing, they create a bipolar magnetic field that pulls the target it is aiming at (such as a person) towards this weapon, of course, on the atomic scale. We then see the weapon eject a strong stream of pulses that pull away the target's constituent atoms and suck them towards the weapon itself.

Human civilization on earth began to develop Gauss weapons as early as several decades ago, but because of their size, they can only be used in warships and road-based bases, and they cannot be miniaturized.

But the Chiyou space science and technology civilization has obviously stepped into the three-level civilization sequence with one foot, and the Gauss weapon has long been the weapon to be looked for, which is why Lu Ziming did not pay attention to the Gauss weapon at the beginning, there are more powerful weapons, who will use tattered weapons.

But Lu Ziming was negligent in one point, that is, the problem of energy, without massive energy, any high-end weapon is just a burning stick. Under the existing scientific and technological conditions, what seems to be a high-end Gauss weapon in the eyes of humans is just the most common weapon and equipment in the Chiyou space, and it only appears in the list of huàn, and there is not even a physical object.

Lu Ziming had a headache, and he neglected the most critical problem, that is, the insufficient supply of energy.

However, it is not too late to realize it now, to deal with ordinary mutant ants, Gauss weapons are enough, and the use of laser cannons can only be said to be overkill, and it is just right to keep them to deal with mutated creatures of the sixth order or so. Of course, if you use a small nuclear battery, the shaped gun is also a good individual weapon, the problem is that Chiyou space is ready-made technology, and if you want to develop a technology that suits the current needs of human beings, it is impossible without a large number of scientists, and this matter can only be considered by waiting for Lu Ziming to stabilize dìng.

"You guys wait here, I'll go back as soon as I go, contact me immediately if there's anything", Lu Ziming took out an extra thing half the size of a mobile phone in his hand and threw it to Lao He Dao.

"Brother Lu, you go there!" Leng Shuang also wanted to follow when he saw Lu Ziming leaving.

Lu Ziming was also about to befriend the evolutionaries in the base, so he said, "Follow me!"

On the way from the fourth floor to the second floor, there were gunshots and screams everywhere, passing like ghosts in the passages, floating and floating, like evil spirits in hell reappearing in the world.

You don't need to look around at all, just look at the panicked and blood-covered crowd around you, trampling on each other and crowding together, and even Lu Ziming was rushed by the crowd to avoid it, you can think about how tragic the battle situation is. Although he knew that there would be this day, when he saw it, Lu Ziming's heart still trembled violently, and there were bursts of heart-wrenching pain.

"Everyone, listen, stop if you don't want to die, I'll take you to a safe place?"

Not many people in the crowded and noisy crowd noticed Lu Ziming's words at all, but a middle-aged woman who ran past Lu Ziming, with a teenage girl next to her, glanced at Lu Ziming and said, "Who are you, why did you say take us to a safe place, you don't want to harm us!"

Lu Ziming was not wearing a military uniform, as early as in the battle with the mutant ants, the military uniform on his body had been corroded, and he casually took a set of light blue clothes from the space ring, which looked a bit like work clothes, and naturally did not have much credibility when he spoke.

"Auntie, what I said is true, follow me to make you ...... safely. ”

"Phew, the thief-eyed guy, you are coveting my daughter's beauty at first glance, the old lady has seen too many people like you, get out!"

Lu Ziming looked embarrassed, his image was indeed not very good, the last time he soaked in the stomach of the mutant earthworm, the hair on his head fell off, and he didn't grow much in the past few days, plus his body was tattered, and he was holding a short sword dripping blood in his hand, he didn't look like a good person, and even he began to suspect that his motives were not pure.

When he didn't know how to answer the middle-aged woman's words, Leng Shuang next to him explained to the surroundings: "I'm Leng Shuang from the Evolution Camp, we can take you to a safe place, and if you don't want to die, follow us!"