Evil spirits invade, everyone needs to survive, I have a game cheat.

"Huh? What? What is that?"

Cao Jianjun was slightly taken aback when he saw the familiar document handed to him by his nephew.

Did you make some changes for them?

Is everything alright now?

What does that mean?

He reached out in surprise, took it, and looked at it.

When he turned to the first page and saw that their sixth step had been modified, he paused slightly.

His face showed a look of doubt and contemplation.

As the saying goes, a master craftsman's skill is immediately apparent. Within the Extraordinary Weapon Factory, there are several thousand professional weapon refiners, including forging workshops primarily responsible for forging and research and development workshops responsible for research and development.

Cao Jianjun, a master craftsman of the sixth rank in forging techniques, was able to secure his position as deputy director of the research institute mainly because of his research and development capabilities.

His forging skills may not be as good as many people in the arsenal, but his research and development capabilities are among the top five.

Their research and development department's main task is to study weapons and equipment that are more cost-effective and easier to improve the capabilities of ordinary soldiers.

By integrating the knowledge of Earth with the extraordinary knowledge of the Lost Lands, we can create unique weapons.

The research on the "Super Vulcan Machine Gun" was the most important and top-level scientific research project of the research institute.

However, after six months of research and development, they were ultimately forced to give up.

In today's fast-paced, post-apocalyptic world, six months is an extremely long time. As the main person in charge of this project, Cao Jianjun almost lost his current position because of it.

He knows this document by heart.

Upon seeing the modified parts, he first frowned, then quickly became surprised and suspicious.

"Wind rises, why can't the breechblock of the machine gun be made of explosive silver instead of explosive gold? Explosive gold is hard gold, while explosive silver is soft gold... This..."

Cao Jianjun stared intently, took a deep breath, and murmured excitedly, "Yes, yes, using Explosive Gold from the beginning was a mistake. Although the breechblock should be made of Hard Gold, the properties of Explosive Silver are better suited to the recoil spring inside, but..."

He was thinking, but soon got stuck again.

"The lack of metal hardness can eventually be made up for with Soul, but Bursting Gold is easy to break after a short time."

Cao Fengqi replied directly: "A level 7 weapon generally requires 10 level 6 souls, but it is not necessarily fixed at 10. One more level 6 soul is also acceptable. If the bullets in the later stages are not made of level 7 metal, but only level 6 and level 5 metal bullets, there is no need to make up for this deficiency."

Cao Fengqi's words were like thunder in his ears, causing a look of sudden realization to appear on his face.

"That's right, that's right."

Cao Jianjun nodded and quickly flipped to the back. The more he looked, the brighter his eyes became, and his breathing became a little rapid.

As he looked at it, he frowned again: "This...this...why can you choose between a rotary tube and a rotary bore type? And why are the metals used for these two types different?"

Excuse me?

Cao Fengqi looked at the old man, who was engrossed in his meal, and a slight smile appeared on his lips. He said leisurely, "Grandpa, dinner's ready!"

"I'm not hungry."

Cao Jianjun shook his head, staring intently at him as he repeatedly asked, "Fengqi, Fengqi, why are there two options: rotary tube and rotary bore? And why are the two metals chosen differently?"

"Forehead...."

"Isn't this simple? Rotary cannons have a faster rate of fire. You can only use bullets made of level 7 metal. Otherwise, if you use bullets made of level 6 metal under continuous fire, they will deform and explode the moment they are fired."

"Grandpa, when you research machine guns, you need to consider not only their power but also their cost-effectiveness. Since you need to use different grades of metal as bullets, you'll naturally need to make some modifications."

Cao Fengqi said matter-of-factly.

"???"

"???"

Cao Jiancheng opened his mouth, "Simple?"

You think this is simple?

This time, more than twenty master craftsmen skilled in firearms participated in the research of the [Supernatural Vulcan Machine Cannon]. Later, even the director, who was at the ninth level of master craftsmanship, joined in, but they still failed.

My nephew actually said it was simple?

However, looking at the revised documents in front of him, his mind was in turmoil.

His nephew even considered the possibility of using different grades of metal bullets...

Meanwhile, at the dinner table, everyone watching the two talk was shocked.

This?

What's going on?

"Awesome, awesome!"

After reviewing all the information, Cao Jianjun felt that the forging diagram in front of him was very likely to have been completely perfected.

He slammed his hand on the table excitedly, staring intently at Cao Fengqi: "Fengqi, how did you do that?"

"How did you do that? It's simple. I was just bored and saw your obsolete research project."

"I looked through it and found some problems, so I quickly fixed them."

Cao Fengqi said casually.

"????"

"????"

Cao Jianjun's breath hitched when he heard his words.

Simple? Bored? Just grab it!

Holy crap!

"..."

Cao Jiancheng, who was standing to the side, twitched his lips when he heard his son's words. He knew that the kid was showing off.

However, looking at his older brother's excited expression, it was clear that his son had really done a great job this time!

Cao Jianjun's hand trembled slightly as he took out a cigarette, lit it, and looked at Cao Fengqi, unable to resist asking, "Fengqi, what is your level of extraordinary skill?"

"Ninth level complete!"

Cao Fengqi replied.

"Master Craftsman, Ninth Rank Perfection!! Holy crap, you're the boss now!!"

Even though Cao Jianjun had some suspicions, he still exclaimed in shock!

"..."

"..."