Speaking of orcs attacking human border cities, there is one thing that Bai Fan has never understood.

Before this, Bai Fan had always thought that in addition to the orcs attacking human territory, in order to get more land for reproduction, another important reason was that the arrival of players would pose a great threat to the survival of orcs.

The aborigines of the Human Empire will not take the initiative to explore the Orc Plains, but players will.

Bai Fan believes that the purpose of the orcs to start the war is likely to reduce the player's threat to themselves and gain greater strategic depth for themselves.

But so far, the orcs have been waging war for more than a month, and it is almost the New Year on the Blue Star, but the orc army has not gained substantial benefits except for the death of countless orcs and the same killing of a large number of human natives.

In Bai Fan's opinion, not to mention this kind of racial war, even if it is a primary school student fighting, they have to do something.

But so far, Bai Fan has not seen what the orcs are trying to start this war.

If they feel threatened by the players and want to take control of as much territory as possible before the players grow up, then there is no need to blossom as they do now.

Bai Fan took a closer look at the forum and found that the orcs sent troops in the twenty-three human border cities were mainly high-end combat power, but there was not much difference.

If the orc army really wants to occupy the cities of the Terrans and expand their territory, they can concentrate their high-end combat power and launch a wave of general attacks.

Although there must be a way for the Terrans to deal with it, Bai Fan doesn't think that the Terrans can not lose a city like now.

After thinking about it for a long time, he couldn't figure out what was going on, Bai Fan shook his head, threw these things out of his mind that he didn't have to worry about, and began to concentrate on studying the optimization method of mortar shells.

The current mortar shells, in fact, are loaded with a small induction bomb and a large number of high-explosive bombs, all of which were disassembled and then reassembled by Bai Fan using mechanical techniques.

At present, the biggest benefit that the mechanism technique has brought to Bai Fan may be this.

After dismantling, Bai Fan can directly synthesize bombs of various specifications according to his needs, instead of processing and then assembling them again and again as before, which greatly increases the production efficiency.

It wasn't until the next day that all the servants had chosen a location nearby and built a wooden house, and Bai Fan finalized the final draft of the cannonballs.

The thin cartridge part, which was originally formed in one piece, was divided into some assembled cartridges with a simple mortise and tenon structure under Bai Fan's experiment, which directly shortened the production speed of the cartridge by half.

Finally, with the help of system rules, the combined mortar shells also have an additional physical damage and an 'explosive' trait.

Explosive is a negative state, but Bai Fan doesn't care too much.

As long as you don't blow it up in the barrel when you fire, it won't have any effect at all.

In reality, if the shell is explosive, no one will dare to use it.

But in the dimensional world, even if this cannonball really explodes in the barrel, it is automatically operated by the activation mechanism anyway, and it is enough to change the set of mechanisms after exploding.

Although Bai Fan's purpose is to make them proficient in how to make parts and prepare for the comprehension of the mechanism technique in the future, it does not mean that everyone here has this ability.

Therefore, at present, Bai Fan is still with the assistance of the steward, and these people are grouped according to the proportion of parts needed and the production time, and each group makes a certain part.

These people are then divided into production parts, and finally a preliminary screening is carried out by checking the quality and quantity of mortar shells produced by each team, as well as the quantity and quality of the remaining materials.

Even if it was true that he could comprehend the mechanism technique by making mechanism parts and assembling them, Bai Fan didn't think that these two thousand people had this potential, and he must first find those who were talented or willing to work hard.

After a hundred people comprehend the mechanism, he can obtain the last skill needed to form the mechanism, which is only a possibility.

It is indeed a certain thing that the orcs will take the opportunity to attack when they retreat, and then get more gains.

And having these people make more shells will not lead to the defeat of the first one, but the time may be delayed a little.

Of course, Bai Fan wants to take care of other things while ensuring that he can get the benefits.

After this, Bai Fan began to study the crossbow he had obtained.

After observation, Bai Fan can determine that if you talk about science, the crossbow cannot continuously transport the crossbow arrows to the crossbow string, but in fact, it can indeed transport the crossbow arrows to the crossbow string one after another.

There weren't many parts for the crossbow, and after exhaustive testing, Bai Fan finally determined the relevant parts of the 'autoload' rule, and there were only ten in total.

Eight parts are in the box under the trap crossbow, and two are on the body of the trap crossbow.

According to Bai Fan's previous experience in testing the 'vision sharing' rule, Bai Fan can say with certainty that the eight organs in the box are the main body responsible for the transmission of crossbow arrows, and the two above are likely to play a role in positioning.

Bai Fan felt that he seemed to see through the rules at a glance, but he felt that it was too easy, and he didn't dare to trust his own judgment.

In order to confirm his guess, Bai Fan directly arranged a mortar launch pad and began to refit it.

Start by making a case for mortar shells, which can only hold 4 mortar shells for the sake of efficiency, and then connect a separate mortar launch pad to the box.

The next step was the most important step, which was to put the ten parts about the automatic state rules that he had obtained before into the position that Bai Fan guessed.

Four were placed in the four reserved bottom corners of the wooden box, four were placed in the top corners, and then the remaining two parts on the body of the crossbow were placed on the sides of the mortar barrel.

In Bai Fan's opinion, the eight parts on the box are most likely used to delineate the 'ammunition range', and the two parts on it should be used for positioning.

After the assembly was completed, Bai Fan solidified the mechanism and checked the system properties.

Unnamed Trap (White): 0.25 attack speed (every 4 seconds), range 200 meters, 4/4 mortar shells, 4 reload times/1 seconds, durability 200/200. The placement time is 4 seconds, the recovery time is 2 seconds, and the activation value is 1. (Embodied energy: 30...... ）

"Is it really happening?"

Even when he saw that the mortar in front of him really had the effect of auto-loading, Bai Fan still felt a little incredible.

Compared to the previous rules for field of view, the rules for autoloading are like a joke.

But it doesn't matter, anyway, it seems that the result is good now, so the next thing is the specific modification.

Bai Fan looked at his mechanism activation skill, he was already level 4 and 96% experience, and before the orcs retreated, he would definitely be able to upgrade to level 5, and his total activation value would be 31 points by then.

In this case, it is necessary to consider whether to raise the level of the wind.

Now Bai Fan is level 40, and the wind is still only level 25 at the beginning, and it has never moved.

After thinking about it, Bai Fan still decided to raise the wind to level 40 and level 4 first, so that if he encountered a counterattack from a high-level orc when chasing and killing the retreating orcs, he would not wait for death.

Each time Wind raises its level, it will increase the activation value it occupies by 3 points, which is nothing for Bai Fan, who is about to reach level 5 in the activation of the mechanism.

And according to the previous experience, the wind after level 20, when it took about 200 gold coins to upgrade to a level, may have risen to 300 gold or 400 gold now?

In terms of gold coins, it has indeed risen a lot, but if it is converted into Chinese dollars, it is actually a price reduction.

Because after the orcs started the war, the player's daily consumption increased significantly, but the income increased even more.

As a result, from the time the orcs started the war to the present, the ratio of game currency to Huayuan has dropped all the way to the current 100:1.

Intuitively, Bai Fan felt that this number was abnormal, but there was no evidence.

There was an idea of hoarding a batch of game coins and betting that the price of a wave of game coins would rise after the orc war ended, but Bai Fan gave up after thinking about it.

It's really quick to make money, but the odds of losing are too great.

Who can guarantee that the price of in-game currency will actually rise after the end of the Orc War, in case of a larger depreciation?

In a month, the price of the game currency has dropped by 10 times, which means that the player's ability to earn game currency has increased by at least 20 times, and only then can the game currency be saved by 10 times.

If this were really a game world, but this is a real world with game rules, and Bai Fan always feels that something is wrong now.

Another week has passed, and according to the weather, the retreat of the orc army may be in these three or five days, and Bai Fan's mechanism activation has unexpectedly been upgraded to level 5, and according to his current activation value, he has specially built a batch of machine cars and ammunition boxes.

The effective range of the mechanism activation has reached 160 meters, and Bai Fan can completely manipulate the machine car to launch an attack at a distance of one hundred and fifty meters away from him.

In this way, not only is it safer for itself, but also the machine car that hits the mortar, because it lacks the weight of more than 100 catties of the 'organ division', and the speed can be faster.

The activation of the level 5 mechanism gives Bai Fan 29 points of activation value, plus 2 points of equipment, even if the 13 points occupied by the level 40 wind are deducted, there are still 18 points available.

Therefore, Bai Fan deliberately made two eight-wheeled machine cars as firing batteries.

The ammunition box is to replenish the ammunition faster, and if it is replenished manually, four pieces per second is still a bit slow, so Bai Fan simply changed the ammunition compartment directly.

However, today, Bai Fan's mind is not on this.

Because Bai Fan looked at the warehouse, it was useless for more than a month, and the magic crystals collected in the warehouse had reached 9,400 pieces, which could be exchanged for 4,700 embodied energy.

Coupled with the 255/256 points of energy accumulated in the embodiment space itself, Bai Fan only needs to acquire 90 more magic crystals today, and he can make up 5,000 points of embodied energy.

It's also strange to say that in the past month, the auction house has only appeared in this kind of small 50g magic crystals at most, and there are no magic crystals of 200g or more.

Bai Fan thought about buying it at a higher price, but in that case, it would conflict with what he said before, hoarding it to prepare for the future production mechanism, so he could only keep refreshing the auction house as before.

In fact, you can still buy it from Moses, but Bai Fan is not sure if he is still being monitored, so he still chooses the auction house.

"Hoo ......"

After purchasing the last magic crystal, Bai Fan took a few deep breaths and exchanged all the magic crystals for embodied energy at one time.

(Current embodied energy 5000/256, recover at 15 o'clock in the morning every day, upgrade 87/1280, space 0/15)

Then, Bai Fan looked at the stealth in the backpack and the activation of another mechanism.

After thinking for a while, Bai Fan put the mechanism activation back into the warehouse, and first manifested and sneaked.

Silently recited in his heart, the stealth skill book disappeared from the backpack, and Bai Fan also pretended to be calm and chose to go offline.

After going offline, Bai Fan went to the bathroom according to his habit, and then closed the curtains of the bathroom to physically isolate his sight.

After carefully checking it and making sure that the camera was not secretly installed, Bai Fan showed the stealth skill book from the embodiment space and used it silently.

The familiar light shavings reappeared, and as the light shavings merged into his body, Bai Fan's heartbeat became faster and faster.

The rapid heartbeat was not the effect of the light chips, it was purely because Bai Fan himself was getting more and more excited.

After the light shavings were fully integrated into his body, Bai Fan tried to use his stealth skills like in the dimensional world.

So, some weird scenes appeared.

Bai Fan watched his body go from opaque to translucent, and finally completely transparent.

And he himself, from a person's point of view, has become a kind of similar to playing a computer game, where he can only see the scene, but not his own body.

"Whew, it's okay, this skill is invisible along with the clothes on the body."

After making sure that even the clothes had entered the stealth state together, Bai Fan breathed a long sigh of relief.

If it's like some movies or what is written, the person is invisible, and the clothes are still there, then the effect of this skill can be greatly reduced.

Bai Fan still couldn't accept the fact that he was running around without clothes, even if others couldn't see it.

After that, Bai Fan tried to touch other objects or himself again, and made sure that he could move normally, grasp, and touch.

Of course, this also means that he can be touched by others while he is in a stealth state.

It's not much like in the dimension.

Immediately after, Bai Fan thought of another question.

Can this stealth be tested by modern instruments?

For example, infrared induction, thermal imagers, etc.

After thinking about it, Bai Fan definitely couldn't buy one back and put it at home, but he really had an abbreviated version of the infrared sensor at home.

Well, the portable temperature gun, although it looks a bit low, but in principle, it should be similar to a thermal imager, it is all about temperature sensing.

…………

When Bai Fan tested the effect of stealth, Zhang Qing in the dimensional world looked at Bai Fan's dark avatar and was entangled.

Every time Bai Fan suddenly went offline, he would go to the bathroom.

Although Bai Fan didn't admit it, Zhang Qing was sure that Bai Fan must have solved some needs on his own.

This is disrespectful to her, but she really can't bear it, so she is a little depressed.

But today, this time should be more than once, maybe you can have the upper hand once?

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