However, although Dr. Zhang was very opposed to Zhang Caiyun going to the Xuangu Continent, this did not stop Zhang Caiyun's pace in the end, mainly Guo Dafu and they also supported Zhang Caiyun to go to the Xuangu Continent and make a clone from the Holy Tree King, so that even if he accidentally hung up later, he would have a chance to be resurrected.

High-tech talents like Zhang Caiyun are really hard to find now, so Guo Dafu will of course be concerned about his safety issues, and making a clone as a backup is a good way to avoid accidents.

And after successfully arriving at the Xuangu Continent through the teleportation array, Zhang Caiyun did not laugh at his younger brother's research here, but gave the other party a lot of suggestions for improvement.

Speaking of Dr. Zhang's various research work on the Xuangu Continent is really heavy, but his most important research in the near future is the ironclad ship, after all, if you want to successfully go to the Central Continent, a strong naval fleet is a must, so Dr. Zhang must build such a powerful ironclad fleet in the fastest time, although many places are copied from the design of the Orlan Star, but because of the difference in world rules, some of them still have to be designed from scratch, Therefore, Dr. Zhang now often has to work until 11 or 2 o'clock in the evening every day, and then get up at 5 or 6 o'clock in the morning to get busy, which causes him to have dark circles under his eyes now.

However, the arrival of Zhang Caiyun has made Dr. Zhang's pressure much less, because Zhang Caiyun seems to be very professional in this area and has helped Dr. Zhang share a lot of work.

With the concerted efforts of the two siblings, more than a week later, the prototype of the first battleship belonging to the Blue Dragon Empire was finally manufactured.

However, this ironclad battleship in Guo Dafu's eyes is already very good in all data, but in Zhang Caiyun's mouth, it is still a stupid and coarse backward product, at most it can only be excessively in the early stage, and when the conditions in the later stage go up, it will have to be built better.

In fact, it's not that Dr. Zhang doesn't want to design a more advanced ironclad battleship, it's really that the current conditions don't allow it!

First of all, they did not lack all kinds of professional equipment for the construction of warships, and there was also an extreme shortage of professional shipbuilders, so in order to ensure that the products could achieve the purpose of mass production, various design indicators had to be lowered again and again.

For example, the R&D and manufacturing of ironclad ships are quite good, because the navy needs to be used in the future, so Guo Dafu can be said to have gathered all the talents in this area in his hands to help Dr. Zhang and them overcome those difficulties.

As a result, there is an extreme shortage of manpower in other places, and it is simply impossible to manufacture new equipment that is too advanced.

For example, the Air Force couldn't even build those old propeller planes, and they had to rely on the previous airships to support the façade.

The army is not much better than the air force, except for some large-caliber artillery that was acquired by the development of ironclad ships, that is, some primitive firearms such as muskets and homemade grenades have been added.

Guo Dafu also went to personally inspect the muskets and grenades that were to be prepared for the field army and militia units in large quantities, and the muskets were actually still the flintlock muskets that were installed in the front, because the gunpowder that Dr. Zhang had temporarily made was still far behind the power of the military explosives on the Orlan Star side, so in order to increase the lethality, this flintlock rifle, which was named the Demon Exterminator Type 1, had a large caliber of about 18 millimeters.

And because the caliber is very large, the recoil when firing is also very large, that is, the soldiers under Guo Dafu are all warriors, so they can control this large-caliber flintlock pistol.

As for the grenades, in order to increase the power of the explosion, they were also much larger than those on the Orlan side, each one was the size of a small watermelon, and some sharp iron pieces and nails were added to it to increase the lethality. Because of its weight, this homemade grenade needs to be thrown by a strong man with tall and long arms in the army, otherwise it will be thrown too close and may injure itself after exploding.

Although these firearms are very simple and primitive, Guo Dafu did not dislike it, after all, he knew that it must be very difficult for all start-ups now, and Dr. Zhang was able to come up with these two firearms equipment with a simple structure and suitable for the large-scale mass production of the current Qinglong Empire, which is already very good.

For example, the flintlock pistol, although the rate of fire and accuracy are a little worse, but the victory is that it does not require much effort to fire, and the use method is not complicated, a soldier only needs a few days to master its use, basically every soldier can find time to learn how to use this firearm.

Guo Dafu plans to equip it with other army arms in the field army except archers, so that those soldiers can also have a certain long-range strike capability on the battlefield. A few rounds with these flintlock pistols before the two armies came into close contact was always able to kill some enemy soldiers.

In addition to the elite of the field army, the militia force is also ready to be equipped with this flintlock pistol on a large scale, although the original winch heavy crossbow is really powerful, but compared to this super-large flintlock pistol, it is still a lot worse, after testing, the crossbow bolt shot by the winch heavy crossbow can only shoot through the iron armor with a thickness of about one millimeter at most at a distance of one hundred meters, and this demon slaying type one flintlock pistol can easily penetrate the iron armor two millimeters thick at a distance of one hundred meters, and the power is almost twice that of the winch heavy crossbow.

And this level of armor-piercing ability is more than enough to deal with those fierce beasts below the innate realm, as for those extraordinary fierce beasts that occasionally appear in the homeland, it is completely possible to let the innate masters left behind in the local area or the masters under the command of the Holy Tree King deal with them.

Since the area of Roaring Island is not small, Guo Dafu is ready to recruit a full 200,000 militia later, this is still because of the limited population of Roaring Island, otherwise Guo Dafu really wants to make 500,000 of them like the field army, after all, with such a large territory, 500,000 troops can't splash much if they are thrown in.

After checking the progress of the militia training, Guo Dafu went to the warehouse to get some materials, and prepared to personally refine an extraordinary equipment, or magic weapon.

This thing was a good thing he had discovered after collating the information he had previously obtained from the planetary consciousness of Oran, and it was very useful to him now.

Since the grade of this thing itself is not high, if it is divided by the level of extraordinary equipment, it is just a piece of extraordinary equipment of the lower grade of the Xuan Rank, so after Guo Dafu failed a few times, he mastered the trick of refining this magic weapon, and quickly refined a finished product.

This thing is called the Soul Flag, according to the information obtained by Guo Dafu, this thing can be used to deter the Yin soldiers, Guo Dafu thinks that those undead should also be a special kind of Yin soldiers! If this thing really works for the undead, then wouldn't it be easy for him to subdue the undead creatures that are causing trouble.

Different from those extraordinary equipment in the Xuangu Continent, the soul banner refined by Guo Dafu obviously belongs to another system, and it does not have too strong killing power in itself, and its biggest effect is to deter the Yin soldiers. However, this thing is a growable equipment, and as it collects more Yin soldiers, the higher the quality, and the level of the thing will gradually increase.

Now this initial version of the Dementor Banner can collect up to 100,000 Yin soldiers, and the strength of the Yin soldiers collected is the highest to the Nine Major Consummations of the Day After Tomorrow, and no matter how high it is, it will not be able to be subdued.

And those Yin soldiers who are captured will enter an independent small space inside this magic weapon, this small space has a strong Yin Qi, and the Yin soldiers staying in it can not only quickly replenish the consumption of the battle, repair the body damage, but also slowly improve their cultivation.

In order to find out whether this thing could be used to subdue those undead, Guo Dafu immediately teleported this dementor flag back to Orlan Star after refining it successfully, and let himself experiment on the body there.

Speaking of which, Guo Dafu's status in this body seems to be a little unstable, because his doppelganger cultivation in the Xuangu Continent has already achieved overtaking, plus there are a lot of things on the Xuangu Continent, Guo Dafu has been focusing on that side most of the time recently, and the body on the side of Orlan Star is generally only left with a divine thought to manipulate, and now he is even sent to test the effect of the dementor flag, and he has become a tool man.

Fortunately, Guo Dafu was not a demon and would not complain about himself, and after receiving the dementor flag, he immediately set off towards the Z town, where many undead creatures gathered.

When Guo Dafu arrived there, he found that in the center of the town, the thousands of defenders sent by Su Li had already built a rudimentary city there, and built a wall with a large number of building ruins and abandoned car wreckage, etc., to isolate those undead from the outside.

And the undead, however, did not seem to have any intention of leaving, and were still wandering around aimlessly.

Guo Dafu glanced around the air, selected the largest group of undead, and waved the dementor banner when he came to the sky above it, trying to subdue these undead creatures.

This magic weapon is not of high grade, but it really has an effect on these undead, Guo Dafu just swung it a few times, and a large number of skeletons and walking corpses were collected, and after a few more waves, even those ghosts who kept fleeing couldn't resist its power of retraction, and they were sucked over and thrown into the flag.

And after these undead creatures were subdued, Guo Dafu also had a clearer understanding of the strength and ability of these undead creatures.

The weakest of them are naturally those skeletons, most of them only have six or seven points of strength, which is not as good as a strong human male, and their agility has broken through ten points, probably because there is no flesh and internal organs on their bodies, and only a skeleton remains, so their actions will become more agile! The health is only fifty points, which can be said to be crispy to the extreme! This kind of combat power is just a little stronger than the weak chicken beast like the steel-toothed rat.

As for those walking corpses, the strength value has reached more than fifteen points, which is considered to be an amazing brute force, and most of the ordinary people who have not cultivated are not their opponents if they are purely compared to strength, but this agility is extremely poor, most of them are only five or six points, only half of the skeletons, and the health value is very high, with two hundred points, which is considered to be the blood cow level among the low-level undead.

And the most powerful of this is the ghost, this thing is very agile and spiritual, like skeletons and walking corpses, the spiritual power is generally only one or two points, basically equal to nothing, and the spiritual power of this thing is above twenty points, the way to attack is to use their powerful spiritual attributes, to launch a spiritual impact on the enemy.

This kind of attack can be said to be unguardable, for most people can only rely on their own will to resist, and due to the spirit attributes of those ghosts, there is a fifty percent chance that the physical attack will not be able to cause damage to them, it can be said that Laipi is to the extreme.