Chapter 42 Evolutionary Materials

"The mechanical core has detected a high-energy life source. Please put it in the absorption tank." After the electronic reminder sounded, a cylindrical metal tank rose again on the main center console of the cab.

After Han Feng got in the car, he first looked at Wang Yingyu who had fainted in the co-pilot seat, and found that she was indeed just exhausted, so he breathed a sigh of relief.

In fact, it is very dangerous for an evolver to completely overdraw his own energy, but fortunately Wang Yingyu has just become an evolver and has not mastered the way to overdraw energy.

Han Feng carried the unconscious Wang Yingyu to the sofa in the living area and let her have a good rest. Then he quickly returned to the cab and looked at the cylindrical metal tank on the center console in front of him.

With the experience of the last mechanical core evolution, Han Feng basically didn't think much about it and put the life core in his hand into the cylindrical metal tank.

With a mechanical click, the cylindrical metal tank slowly retracted after receiving the life core. At the same time, the hologram of the Unimog RV appeared in Han Feng's mind again.

"The mechanical core successfully absorbed the high-energy life source. The mechanical core has started to evolve. Please choose the direction of evolution."

After hearing the electronic sound again, it was still the same options as last time. Han Feng, who had already made a choice in his mind, directly moved his eyes to option six.

"Option six: Add vehicle-mounted weapon system, Sky Dome ultra-high-energy electromagnetic cannon module, each firing calls 200L of fuel to convert into high-energy electromagnetic waves, causing large-scale damage, cooling time 1 hour."

This battle with giant zombies and mutant giant turtles made Han Feng more aware of the lack of attack methods at this stage, especially when facing some huge mutant beasts, the disadvantages of Unimog RV are undoubtedly highlighted.

The current Unimog RV can effectively defend against the attacks of ordinary zombies and cause damage to ordinary zombies, allowing Han Feng and Wang Yingyu to have a relatively safe and comfortable living environment.

However, after Han Feng and Wang Yingyu both became evolvers, the function of the Unimog RV seemed to be a little insufficient. According to Han Feng's current strength and vision, he can fight hundreds of ordinary zombies alone, and the attack power of the RV can only be considered better than nothing.

When facing bronze-level zombies and bronze-level mutant beasts, the shortcomings of the RV's insufficient attack power are fully exposed.

In this battle, Han Feng's main lethality comes from the RPG-7 rocket launcher. If there is no rocket launcher, Han Feng can only watch the mutant giant turtle crash the giant zombie into the Qiantang River, and there is nothing he can do.

So he is now in urgent need of improving the offensive capability of the Unimog RV.

After Han Feng clicked option six, the electronic prompt sounded again: "Selected: Add vehicle-mounted weapon system, Sky Dome ultra-high energy electromagnetic gun module, high-energy life source meets the standard, please put 50 kilograms of metal osmium in the pop-up physical material conversion cabinet. (500 kilograms of ordinary metal can be used as a temporary replacement, but the replacement barrel is a one-time device. After using it once, you need to continue to put in 500 kilograms of ordinary metal to make a replacement barrel.)"

After the electronic sound prompt, on the Unimog RV hologram, a rectangular metal cabinet suddenly stretched out from the chassis of the RV and rose to the front of the car, as if waiting for physical materials.

"Fuck!"

Faced with the sudden prompt of the electronic sound, Han Feng's eyes widened and he showed an incredible expression.

He originally thought that adding a vehicle-mounted weapon system only required a high-energy life source, but he didn't expect that in addition to the high-energy life source, he also needed 50 kilograms of metal osmium.

Han Feng still has a rough understanding of metallic osmium. Metallic osmium is a heavy platinum group metal and the metal with the highest known density. It is extremely hard and the reduced metal is blue. It is usually mixed in items such as bearings that need long-term wear.

"Metallic osmium is a bit difficult!" Although Han Feng has a certain understanding of metallic osmium, the price of this thing is very expensive. The price of one gram is only slightly cheaper than gold, and the inventory is very small. Except for some special manufacturing industries that have demand for metallic osmium, other industries will not buy this metal at all.

Since it is impossible to get so much metallic osmium at one time, Han Feng can only turn his attention to the notes behind. Although 500 kilograms of ordinary metal can make a disposable gun barrel, in the end times, except for some big cities, it is still a bit troublesome to find 500 kilograms of ordinary metal in other places at one time. If it is consumed by then, there is no place to replenish it, it will be embarrassing.

However, Han Feng is still very confident in finding 500 kilograms of ordinary metal. He believes that there will definitely be metal inventory in the warehouse of the militia station.

After learning about the vehicle-mounted weapon system from the hologram of the RV, Han Feng turned his attention to option eleven.

"Option eleven: Open the equipment manufacturing workshop, add an equipment workshop at the rear of the vehicle, which can absorb items of most materials and directly create equipment through the automatic equipment manufacturing instrument."

The equipment manufacturing workshop is the evolution option that Han Feng is most interested in, in addition to the vehicle-mounted weapon system that is urgently needed.

From the previous battle, the lack of weapons and equipment also limited Han Feng's strength. He clearly felt this when he was cutting the corpse of the mutant giant turtle just now.

The tactical saber in his hand, although forged from carbon steel with layers of beautiful cloud patterns, can feel a strong sense of sluggishness when cutting the dead mutant giant turtle with this weapon, like using a saw to slowly saw the flesh of the mutant giant turtle. If it is a living mutant giant turtle, this tactical saber can only barely cut the skin of the mutant giant turtle.

So the higher the degree of Han Feng's evolution, the less help this tactical saber will be to him, and his evolutionary ability is still close attack type, so a handy weapon is particularly important to him.

"Then try the equipment manufacturing workshop first." Since the vehicle-mounted weapon system is currently lacking key materials, Han Feng decided to upgrade the equipment manufacturing workshop first. If the high-energy life source overflows, he will then choose the vehicle-mounted weapon system.

Thinking of this, Han Feng made a new choice and clicked option eleven to open the equipment manufacturing workshop.

"Selected: Open the equipment manufacturing workshop, high-energy life source meets the standard, please put 700 kilograms of ordinary metal and 40 kilograms of rubber in the pop-up physical material conversion cabinet"

After listening to the electronic sound emitted by the mechanical core, Han Feng's face twitched again. Although the materials needed to open the equipment manufacturing workshop are much more common than those of the vehicle-mounted weapon system, the quantity required is more than that of the vehicle-mounted weapon system.

"I can only see if there are so many materials in this warehouse." After Han Feng knew the materials needed to open the equipment manufacturing workshop, he opened his eyes, and his eyes immediately swept through the windshield to the gray metal door in front.