After Xu Feng replied to Xiao Leiting's invitation to fight, he didn't take it to heart and continued to slaughter the bloodthirsty guardians;

As long as you complete task one and destroy thirty F-class mechanical units, you will unlock the scientific and technological equipment, which is actually a convenient condition given by the will of the earth to the voters of the earth, even if it is not unlocked, as long as you are willing to learn, you will quickly master the use of some mechanical firearms, but each equipment has to be learned by yourself, which is too troublesome and time-consuming;

It only takes three months to kill thirty F-class mechanical units, and this knowledge can be directly instilled by the will of the earth, which will save a lot of time, so many people are working hard to hunt the mechanical clan in groups;

It took Xu Feng three days to complete the first task, thirty bloodthirsty guardians, not much, but each one is comparable to a BOSS, even if it is one level lower than Xu Feng, it is very difficult to kill, but fortunately, the harvest is not bad, and now Xu Feng is alone, except for a few pieces of equipment, all of them have been replaced with six-star equipment provided by the mechanical clan;

Twenty-eight, twenty-nine, thirty......

"Whew, it's finally done." Xu Feng stood on the ruins of mechanical parts and let out a long breath;

Because he holds the weak points of the bloodthirsty guardians, as long as he pierces these weak points, he will cause a lot of critical damage to the guardians, but the range of these weak points is very small, and if he moves slightly, he will be covered by the armor, and when he hunts, Xu Feng's spirit has been highly nervous and he feels very tired;

Picking up the attribute enhancement potion that had been dropping from the ground to the six-star gold grade, a smile appeared at the corner of Xu Feng's mouth; The attribute of this potion is that it can add ten points of its own attribute points to people with six-star strength, similar to attribute gems, attribute herbs, etc., and when injected, it will not be as painful as absorbing insect crystals, and the price has been high, which is a good harvest;

Putting the potion into the storage ring, Xu Feng heard a familiar system prompt sound in his ears;

System: You've destroyed thirty F-Class mechs, mission complete! whether to start accepting mission rewards;

Accept!

Xu Feng chose to say;

Soon, Xu Feng's head was hot, and he felt that a lot of information began to drill into his head, he closed his eyes slightly, feeling a large amount of information pouring in, but there was no pain at all, compared to the information he had received from the Spirit Clan's doppelganger technique, it was a world of difference;

Soon, a huge amount of information has poured into Xu Feng's mind, temporarily stored, just like memory, which can be recalled at any time, but to fully grasp it, it will take a period of actual operation, and this time will be very short;

After absorbing this information, Xu Feng took out a mechanical rifle from the storage ring, this mechanical rifle was all over the body, flashing with the cold light of metal, and the tail of the gun was a cyan energy core, providing energy for the entire firearm;

This is a piece of equipment dropped by thirty bloodthirsty guardians for him, six-star bronze level, theoretically the drop rate of such firearms and equipment is very small, Xu Feng once calculated in his previous life, the drop rate of firearms, among all the items dropped by the mechanical family, is the lowest one, about a drop rate of a few tenths of a ten-thousandth, I didn't expect that I only killed thirty, and I dropped one, and it is still a good rifle in terms of power;

The guns of the mechanical family are powerful, and most importantly, they do not need ammunition, they only need to extract energy from the energy core, turn it into energy bullets, and shoot, each energy core is equivalent to thousands of bullets;

Once the energy in the energy core is depleted, you only need to replace it with another energy core;

Xu Feng was holding a mechanical rifle in his hand, and he quickly became familiar with it, and it felt as if he had been using it for several years;

Aiming at a bloodthirsty guardian in the distance, Xu Feng pulled the trigger;

Whoosh whoosh~

A series of light blue energy bullets flew towards the bloodthirsty guardians, each bullet, the size of a fist, and the speed was fast;

Boom boom boom~

The bullet slammed into the Bloodthirsty Guardian, causing a cloud of sparks, and the Guardian's health began to slowly decrease;

The attacked guardian quickly spotted Xu Feng and rushed towards Xu Feng, and when he entered the firing range, an artillery shell whistled towards Xu Feng;

Xu Feng hurriedly dodged, such an artillery, although it was only six stars, Xu Feng didn't want to try it himself;

While dodging, he shot with a mechanical rifle, and after more than thirty minutes of firing at each other, the Bloodthirsty Guardian finally collapsed;

"Not bad!" Xu Feng smiled slightly, because the mechanical rifle uses energy bullets, there is almost no recoil, if you stand still, the hit rate is almost 100%, but because you have to dodge each other, the hit rate drops;

"It's too expensive." Xu Feng looked at the cyan energy core, which was already a little dim, shook his head slightly, and killed a bloodthirsty guardian, almost half of the energy was consumed, although it was still earned, but compared to Xu Feng's previous attack method, such a long-range attack not only consumed a lot, but also took a long time, and the security was not much higher than that of a close height, which was not very suitable for Xu Feng;

However, if it is an army, it is extremely terrifying to be equipped with such equipment, not much, only a small team of more than a dozen people, each with one such mechanical rifle, under the salvo, the other party will not have time to fight back, I am afraid that it will be extinguished by the fire;

If there are more of them, I'm afraid Xu Feng will have to run away with his head in his hands;

After experimenting with the mechanical rifle, the effect of using it is not ideal, and it is not as efficient as its previous attack method;

However, if you don't master the weak attack of the mechanical family, the firearms of the mechanical family are obviously like artifacts;

Just as Xu Feng put away the mechanical rifle and was about to explore other places, a roar suddenly came from not far away;

Soon, a huge figure more than three meters tall appeared more than three hundred meters away;

This is also a mechanical class, but compared to the appearance of the bloodthirsty guardian four-clawed reptile, this mechanical is in the shape of a giant crab;

Three meters high, nearly five meters wide, the whole body is covered with cyan plate armor, the pieces are shining like fish scales, the two huge crab claws tremble slightly, the blade is jagged, the length is more than two meters, just by looking at it, you can feel the chill emanating from this pair of murder weapons, if you come to it, it will definitely be the end of one and two sections;

The huge mechanical crab, every two steps, there will be a huge steam spewing out from the neck, it looks fierce, and the bloodthirsty guardians around it all avoid it, giving way to a wide path;

"Skull-Crushing Charger?" Xu Feng looked at the big crab in the distance and frowned slightly;