Logistics and cartography are essential skills for a hero.

These two skills were very new to Vitruvius.

Although Vitruvius once led a hundred cavalry to kill seven in and seven out of the corpse puppet bushes on Thanksgiving Island, there was no so-called logistics at all, and in every battle, Anthony directly used collective teleportation to bring them to the battlefield, and after the battle, he used collective teleportation to bring them back.

So Vitruvius didn't need to study the logistics at all, he didn't need to read the map, he was just a warrior who led the charge, not a strategic general.

In the underworld, Vitruvius didn't plan to let Esarina cheat with collective teleportation, or even activate the Regeneration Durability Aura.

Collective teleportation and the Regeneration Durability Aura are war skills, and it has nothing to do with him whether the dungeon or hell fortress lives or dies, all Vitruvius needs to do is blend in with one of the forces, get more information about the underworld, and then leave the underworld with a large group of high-quality troops such as lion scorpions.

When Vitruvius, the hero, doesn't plan to use collective teleportation and the Regeneration Durability Aura lightly, logistics is extremely important.

After this period of detailed teaching, Vitruvius knew that as a hero, if he was not proficient in logistics, he was afraid that the soldiers he carried would not go far at all, and even mutinied in a very short time.

Logistics should not only consider the food of the soldiers, but also the physical strength of the soldiers, so it is essential to rest and eat every day.

In the underworld, there is no day or night.

Therefore, the speed of the legion depends on the physical strength of the weakest class in the army sequence.

For example, if a hero's army brings both a black dragon and a cave man, unless he abandons the cave man, the speed of his army can only be calculated according to the cave man's physical strength.

When the weakest class has run out of stamina, the whole army must rest and wait until its stamina is replenished before moving forward.

Generally speaking, if you want to carry out a surprise attack behind the enemy, then the hero will generally only bring flying monsters, so that you can even do thousands of miles away, and then go away after the surprise attack, and if you are guarding your own control area, you should carry a large number of low-level soldiers, although the low-level troops are not good at a single combat effectiveness, but once the number goes up, they can also threaten the powerful monsters.

Heroes with low-level soldiers can even form an array to garrison the passes of the underground passages, blocking the enemies of the thousands of miles in the cave step by step.

Blocking the pass, taking it step by step, slowly advancing, tying the pockets layer by layer like tying a pocket, and finally forcing the rat into the pocket to duel with herself, this is the tactic that Ratana is ready to implement.

It is conceivable that the Hell Fortress must have sent a swift reconnaissance force, they scouted the terrain, drew maps and seized the minerals, and if Ratana fought with them with a large number of low-level troops, then it would undoubtedly be played by the Hell Fortress side.

Ratana had no intention of playing a game of seizing and defending the mines with the side of the Hellfort, and her tactics were to take the invading enemy completely and calmly seize all the minerals in the end.

Therefore, the pace of the march of the 2nd Army was not at all in a hurry, everything was done in an orderly manner, step by step.

Because the physical strength of the Evil Eye and the cave people is really low, and there are many logistics personnel in this army, Vitruvius and the others can only march a small half every day, and the rest of the time is spent resting and eating, waiting for the low-level troops to recover their strength.

When the army is resting, Vitruvius would go to the Ordnance to craft his Transcendental armor.

The material for this Extraterrestrial armor was the corpse of the petrified lizard that Vitruvius had obtained.

Although Vitruvius had better materials in his hands, such as the body of the Tidal Giant, neither Koslin nor the wizard Hebrew knew how to craft the Tidal Giant's shell into armor.

On the other hand, the shell of a petrified lizard is a common material on the battlefield of the Everglades, and the method of making it into armor is also widely spread.

Vitruvius didn't know how to make it, of course, but Kosling knew the process and Hebrew knew rune branding, and the two of them could easily craft Vitruvius' armor together.

Now that Vitruvius has become a hero with soldiers, he naturally can't wear too shabby, and smelting a mighty armor is the top priority.

"They are refining armor inside, and it has reached a critical time, so don't bother at this time." In the armoury office, David, a female thief outside the humble furnace, stopped Vitruvius.

Listening to the rattling of bells inside the furnace, Vitruvius knew that it was indeed a critical moment.

"How long will it take?"

"Maybe an hour or so."

"Oh, that's enough."

"Something is enough." David looked puzzled.

Two gray dwarf helpers in the smelting chamber, armed with sledgehammers, alternately pounded the smelted petrified lizard armor.

The craftsmanship performed by these two gray dwarves is a unique melting technique in the underworld, and they can melt the black gold of the underworld into the leather armor, so that the leather armor can wear the texture of metal.

For casting the petrified lizard armor, Kosling understands how to treat the leather armor with medicinal powder, enhance the armor's elemental channeling ability, and make it tougher.

The petrified lizard leather armor treated with medicinal powder by Kosling will be fused into black gold by the Underground Gray Dwarf, which will change the color of the original earthy yellow armor into inky black metal armor.

In a corner of the smelting room, the wizard Hebrew had a serious face, and he drove runes into one rune after another, which were melted into the black gold armor armguards, shoulder blades, and helmet by the gray dwarves

At this time, Koslin had nothing to do, and suddenly, Koslin's ears moved, and he heard a strange sound outside the melting point, which coincided with the sound of two gray dwarves beating the petrified lizard armor, and then again.

Bang bang

Koslin thought of something and couldn't help but breathe.

"You go on, I'll go out for a while." With that, Koslin turned out of the makeshift forge camp.

Coslin even used the sneaking footsteps of the wanderer, moving silently.

As Koslin approached, the cave was dark, but the familiar sound of slapping became clearer.

There is nothing wrong with that.

It must have been David, who told her to stay outside the smelting room to prevent accidents, but she ran to steal food. The chapter content is being restored, so please visit it later.