One and a half hours later, the first echelon of the infected group finally arrived two kilometers in front of the West Wind Fortress.

A long distance away, you can see various strategic buildings in the Westwind Fortress. The most conspicuous one is the spiked guard towers that stand in the surrounding area, with more than three hundred.

These were built urgently by the slave laborers in order to increase the defensive force of the Westwind Fortress as much as possible before the war.

Below the spiked guard tower are the fire guards, drawn artillery and some detection guards deployed by the road army.

The number of them is even greater, with 3,900 firepower guards, 2,100 drawn artillery pieces, and 700 detection guards.

These things have been opened by the Lu Army from the supply boxes of various levels for a long time.

The most spectacular thing is the giant protective device that covers the entire Westerly Fortress. It props up a blue light that can withstand the illegal entry of all enemies. The people of Westerly Fortress call it the sky curtain.

In the defensive battles of the Westerly Fortress, the canopy was broken many times, but the road army repaired it after the war.

The reason is that the sky curtain needs to rely on spar to maintain, and it needs energy to resist attacks, and it will shatter as soon as the energy is exhausted.

If it is the previous sky curtain, it is estimated that it will not last long under the attack of millions of infected bodies, and the specific effect will not be great.

Because all the S-tier spars were installed before, they can resist attacks below the S-tier at most, and they are relatively weak overall.

But this time is different. The Lu Army upgraded the sky curtain, which is equipped with a crystal stone of the rank, which can withstand the attack of the rank.

This spar was obtained when the Lu Army killed the Destruction Guard in Wucangyu, and it has been placed in the armed module, but it was not expected to play a role at the critical moment.

A canopy that can withstand the attacks of the ranks is also the confidence of the road army to defend the infected group. Otherwise, under the collective attack of millions of infected bodies, it is estimated that the West Wind Fortress without a city wall will not be able to withstand even an hour.

In addition to these defensive facilities, the slave laborers also urgently built a half-meter-high bunker in front of the spiked guard tower and the fire guard, mostly composed of cobblestone and rough wood.

This kind of high-level shelter has very little effect, and it is impossible to block the ordinary infected body, let alone the more flexible mutant infected body...

As a result, the road army and others killed as many as 800,000 infected bodies in this operation, a little more than one-tenth of the infected group.

Most of them are common infections, and only a small part are mutant infections.

Although the results of the battle seem to be relatively objective, in fact there are still more than six million infected groups, and the threat has not diminished.

Without the obstruction of the Lu Army and others, the infected group's advancement speed was significantly faster.

While marching, the corpse controller also constantly adjusted the formation of the infected body group, such as placing nearly two million ordinary infected bodies at the forefront, acting as the first echelon.

Most of these infected bodies are D-tier, even non-tier, and they are almost "defective products" that have failed evolution. The corpse controller intends to use them as cannon fodder to absorb the first wave of firepower.

The second echelon consists of hundreds of S-Tier Tyrant Infected Body, nearly 50,000 B-Tier Double Hammer Infected Body, and 300,000-Tier C Elite Infected Body.

They are all mutant infected bodies, and their strength is more than a hundred times stronger than the previous two million ordinary infected bodies. All the tyrant infected bodies in the entire infected body group are here.

It is necessary to know that there are seven million infected bodies, and there are only 100 tyrant infected bodies, which is enough to show how difficult the evolutionary path of infected bodies is.

The purpose of placing tyrant infected bodies in the second echelon is also very clear, that is, to let them act as the main force of the offense.

After all, there are a lot of Tier A dinosaurs in the Lu Army, and only the stronger tyrants are able to fight against the infection.

The number of infected bodies in the third tier is relatively small, consisting of tens of thousands of Tier A lickers, tens of thousands of Tier A infected bodies covered in green hair, and 50,000 Tier C elite infected bodies.

If the Lu Army is here, you will know that this is another new type of mutant infection, and the name is the rifter.

The size of the rippers is similar to the elite infected body, except for its green hair, its mouth has no lips and no teeth, and it looks like a round muzzle from a distance.

Its ability is also very special, it can spit out a strong acid from its mouth, which can cover a range of five or six meters.

The spit distance is one hundred meters, which is twice as long as the 50-meter attack range of the licker.

If the attack of the licker is single and has a certain control ability, then the attack of the ripper is scoped, each with its own characteristics.

The third echelon composed of their two infected bodies also undertakes all the long-range attacks of the infected group, and can attack the enemy from a long distance.

Although elite infections do not have long-range attacks, they can serve as "fortresses" for lickers and rippers.

In layman's terms, raising the two infected bodies can give the licker and the rippers full vision, and can attack enemies farther away.

It can also provide protection for the lickers and the rippers, after all, the infected bodies of these two long-range attacks are too fragile.

The fourth echelon is still composed of ordinary infected bodies, but these ordinary infected bodies are all C-level, the number is about 3.5 million, and the overall strength is obviously several times stronger than the ordinary infected bodies of the first echelon.

Their mission is very simple, that is, to act as a reserve army, waiting for the ordinary infected body in front to die before replenishing it, or going wherever needed.

As for the black thorn infected body and the ground digger, they did not stay in the echelon, half on the flanks, half on the ground, and slightly separated from the battlefield. It is estimated that the corpse controller intends to make them sneak attacks whenever necessary...

And the corpse controllers are not to mention, they are hidden so deeply that they can't be seen everywhere.

From an objective point of view, the arrangement of this infected group is very reasonable, with close combat and long-range protection available, and the number is huge.

If you look from a high place, you can see that there are groups of infected bodies within a range of nearly 20 kilometers, densely packed and crowded with each other.

Especially when the overall formation is arranged, the various echelons of the infected body group will be opened even more, regardless of the attack or retreat.

Even before the end of the world, when the human army had all kinds of weapons, it would be difficult to deal with a group of infected bodies of this size. After all, there are too many.

Not to mention that all weapons are unusable after the end of the world, and human beings don't even have decent cold weapons.

Although there are supernatural beings, human beings have the ability to become stronger, but the number of supernatural beings is too small to deal with so many infected bodies.

If the road army had many orc warriors and dinosaurs sitting in town, it would be a idiotic dream for the people of the rebel army to resist the infected group...