At the end of the first phase of the plot, the protagonist continues to discover more traces of the rampant activities of the Zerg in the process of exploration, and obeys the commander's orders to continue to explore. However, while investigating a suspicious location, the protagonist's team suddenly encounters a large number of Zerg and wants to retreat in a hurry, but the Worm Sea has completely surrounded them.

After a fierce battle, the protagonist's team finally found a way to meet the team that came to meet them, but at this moment, a sandworm suddenly emerged from the ground without warning, and suddenly bit the protagonist's left arm and dragged him underground.

The protagonist is separated from his team, and by the time he comes to his senses, he is already in a cave underground, which is one of the Zerg lairs.

From here, the game enters the second phase of the plot.

The protagonist uses the stealth ability of the hazmat suit to carefully find an exit in the Zerg's lair, and the gameplay of the game has also changed from FPS to stealth master, supplemented by shooting, and only a small number of them can be shot to destroy enemies if they are not detected.

The protagonist has to avoid the powerful Zerg in the Zerg Lair while constantly searching for an exit, during which time all his supplies come from human warriors who are dragged into the Zerg Lair like him.

These people are not as lucky as Luo Zhou, they basically failed to escape from the Zerg's lair, and after the Zerg devoured the remains of their corpses, the tattered protective clothing, armor, energy blocks, etc., were all piled up in the lair.

Every once in a while, Luo Zhou could find some Zerg garbage heaps, in which he could find some supplies that could be used to maintain the energy and bullet supply of his protective suit.

In the second phase, the player is basically completely isolated. Communication with the outside world has been cut off, and it is impossible to determine how to leave the Zerg lair, supplies are extremely scarce, and the number of Zerg is completely beyond imagination.

At this stage, the difficulty of the game increases slightly, but not to a very high level. Without the support of his teammates, the protagonist must solve all the troubles on his own, which may remind the player of his teammates; Even if you get resources, you can't exchange them for supplies, and if you want to get supplies, you can only go to the garbage heap, whether it is bullets or energy, you must save a lot; When you see a Zerg, you can't shoot brainlessly, but you have to decide whether to assassinate, shoot or avoid according to the characteristics of the enemy.

The second story is similar to a traditional maze, where the player is free to choose the route, but eventually leads to the right route. After successfully escaping the Zerg lair, the protagonist successfully reconnects with the team and learns that the Zerg army is constantly attacking, and that only by finding the location of the brain worms in the nest can the Zerg army be contained.

So the protagonist returns to the Zerg lair again, and finally blew up the brain worm hiding in the ground, and escapes very dangerously.

After this incident, the protagonist and the team members are honored and continue their mission.

Fast forward to a few years, during which time humanity has continued to expand its actual sphere of control, while the task of dismantling parts, repairing ships, and building planetary engines has continued to advance.

Walking out of the barracks again, Luo Zhou looked up and could see the planetary engine being built in the distance, which was a huge mountain peak of more than 10,000 meters, which could be seen from a long distance. This is the first planetary engine to be built, and so far it has only been a large frame, and it is possible to see countless small ships constantly busy around it.

Even with a project of this level, the progress of humanity is very fast, after all, it is a race against time with death. As the game progresses, each time the player looks at the planetary engine, they are surprised to see that it seems to be a small part of it finished.

The protagonist is appreciated by the commander for his previous performance in destroying the Zerg lair, and is even able to directly face the Supreme Archon, the ultimate leader of the Interstellar Tinder Project, from where he can directly receive some extremely special tasks.

This time, the protagonist is given a task that surprises him, and he has to work with the other soldiers to help repair the starship and be vigilant about the unexpected.

The proposal to fix the starship has been in the discussion since the beginning, but it has only now begun to be undertaken. The so-called "repair" is nothing more than piecing together the parts of the ship, tearing down the east wall and making up the west wall, and making up a small number of starships that can operate normally. Because the current technology of mankind is not enough to produce the core and key components of those starships.

The reason why this bill has not been carried out until now is that there have always been disagreements and controversies at the top level. Luo Zhou learned from the Supreme Archon that although on the surface, it seems that the high-level leaders have reached an agreement on the interstellar fire plan and began to fully develop the refusion technology and build planetary engines, but there has always been opposition in private.

In the process of carrying out the mission, Luo Zhou probably figured out the whole picture of the matter by eavesdropping and collecting information.

The current high-level has been divided into three factions: the spaceship faction, the neutral faction, and the planetary faction.

At the moment, the Neutrals are temporarily on the side of the Planetary Faction, the Supreme Archon, and the Ship Faction has the smallest number of people. However, there are a large number of high-ranking officers and technical elites in the spaceship faction, and although there is nothing to think about for the time being, the destructive power that may be produced cannot be underestimated.

And the reason why these people firmly chose the spaceship faction seems to be very strong: "The planetary engine is a big gamble with the fate of all mankind as a bet, and once it fails, mankind will never recover." As the elite of humanity, they should be the first to evacuate, and they should not take unnecessary risks here. ”

After several years of fruitless political operations, the spaceship faction has turned into a defection in a plot to snatch the spaceship.

At this stage of the game, the player's main area of activity is in the damaged fleet area. A large number of engineers are disassembling and repairing the spaceship, and Luo Zhou's soldiers are responsible for patrolling and standing guard, ostensibly to be vigilant against the threat of the Zerg, but in fact, to guard against the people sent by the spaceship.

After the successful repair of the first batch of spaceships, traces of Zerg activity were suddenly found near the planetary engine, and the soldiers were urgently called up to meet the Zerg, while Luo Zhou continued to protect the spacecraft according to the commander's instructions. The spaceship faction really launched a rebellion to seize the spaceship, and the protagonist's team exchanged fierce fire with the rebels, and finally with joint efforts, they successfully defeated the rebels and shattered the plan of the spaceship faction.

The content of this battle is a relatively long cinematic process, and it is all taken place in the scene where the starship is located.

Outside the starships, large combat weapons are strictly forbidden to enter the restricted area, but there are still a large number of rebels who have infiltrated in various ways. The rebels' goal was to capture the starship and defect, and Luo Zhou's team and other warriors engaged the rebels inside the starship and eventually wiped them out.

However, at the end of the battle, the annoyed rebels made a desperate gamble and used special biological weapons, and although the battle was finally over, Luo Zhou and many soldiers suffered heavy losses.

The Archon has decided to put the warriors into hibernation and repair their bodies with new technologies such as mechanical prosthetics, allowing them to be resurrected at some point in the future.

Although this success dismantled the Spaceship Faction's scheme, the Archon realized that this was most likely just a test, and that the real Spaceship Faction must be very well hidden, and there was a possibility that it would make a comeback in the future. Therefore, he secretly gave this group of hibernating warriors a special mission, that is, after his death, he could also ensure that the interstellar fire project could be carried out smoothly.

This is the end of the third stage, which is a small climax in the first half of the story, and the cinematic process can maximize the player's emotions, and the creation of various large scenes will give the player an adrenaline rush. In battle, vicious rebels, wounded teammates, explosions, and chaotic scenes can all be a great way to mobilize the player's emotions and release the pent-up emotions of the second stage.

The content of the fourth stage is the plot after Luo Zhou's hibernation ends.

Decades have passed since the protagonist hibernates, and by the time he wakes up from hibernation, the entire human world has been turned upside down.

Under the guidance of the service staff of the hibernation center, Luo Zhou received a new protective suit and went to the barracks to report. After leaving the hibernation center, Luo Zhou found that now human beings had gone underground, and the outside world had undergone earth-shaking changes.

The original consul has died, and the current new consul is slightly inferior in terms of skill and ability, and on the surface it is calm, but in fact the situation at the top is already a mess.

Only one of Luo Zhou's original team members hibernated and woke up with him, and the other team members either died of illness, old age, or died in the battle with the Zerg, and they all passed away.

However, Luo Zhou was soon assigned a new team member, and as a sergeant major who had made immortal achievements, Luo Zhou was greatly respected in the barracks.

This aspect is very intuitive in the game: everyone in the barracks is respectful to Luo Zhou, and you can also enjoy a good discount when shopping at the merchant's side.

Then, Luo Zhou resumed his identity as a soldier and once again led his team to the surface to explore the surface.

After returning to the surface, Luo Zhou found that the originally familiar scene had changed drastically.

The planetary engine, which is more than 10,000 meters long, has long been fully built, and what used to be just an empty shelf has now become a huge steel mountain, still spewing blue particle tail flames, and the strong light makes the surrounding area always daylight.

The original reddish-brown wasteland has turned into a white snowfield, but strictly speaking, it is not snow, but dry ice formed by carbon dioxide condensation in extremely cold conditions, and the environment has fallen into absolute cold.

The temperature will be much higher near the planetary engine, if it is under the feet of the planetary engine, even if the protective suit is damaged or the energy is exhausted, it will not be frozen to death, at most it will be frostbite, but if it is far away from the planetary engine, then the loss of energy of the thermostat system of the protective suit means a dead end.

The content of the fourth phase is somewhat similar to the first phase, which is also a semi-open world gameplay.

Luo Zhou and his team carried out missions on the vast snowfield, such as rescuing trapped transport convoys, going to some very remote places to encircle and suppress the remaining Zerg, looking for resources that could be used for waste under the thick ice, and so on.

During the start of the planetary engine, the planet's crust still had some shaking, many large mines collapsed, and some nests dug by the Zerg collapsed. There are still some resources available in these places, but they are already difficult to search, and only a team like Luo Zhou will look for them.

By comparing the scenes of the first stage and the fourth stage, the player will feel like they are in a different world. When Luo Zhou was on a mission, he could vaguely recognize the place where he had fought with the Zerg decades ago, and he also found the wreckage of the mecha he had piloted under a certain ruin. But time has passed, and the Zerg, which used to be so disgusting, are now only surviving, and the probability of encountering the Zerg has decreased a lot.

But this does not mean that the Zerg are no longer threatened, on the contrary, they have learned to hide themselves more, and in the past few decades of evolution, they have gained some special features for human weapons, and even gave birth to many new types of Zerg.

Compared to the first stage, although the fourth stage is also a semi-open world gameplay, the difficulty has increased a lot. The Zerg are stronger, and many new classes have appeared; Players are now able to scavenge fewer resources in the wilderness; The environment is even harsher, and the temperature is always extremely low, which can be life-threatening if the protective clothing is damaged or the energy is exhausted.

In addition to the Zerg, the player may also be attacked by rebels, who are eager to get rid of Luo Zhou, and the enemy's situation becomes more complicated.

As the questline progresses, players slowly get to know the current background.

In order to allow the planet to gain sufficient speed, the Supreme Archon decided to use the gravitational slingshot to accelerate with NGC-X-3. But this is undoubtedly a big gamble, and if it fails, the planet will collide with NGC-X-3 and humanity will be wiped out.

At this critical juncture, the Spaceship Faction, which had been dormant for decades, was ready to move again.

The previous operation of the spaceship faction to snatch the spaceship was obviously just a speculation, and the real leaders of the spaceship faction were lurking in the upper echelons waiting for an opportunity, and they did not sit idle, and they have been secretly developing members of the spaceship faction for decades to prepare for the next plan.

As for the reasons of the spaceship faction, they still believe that the risks posed by the gravitational slingshot are completely uncontrollable, and once it fails, human civilization will usher in a catastrophe. Therefore, these self-proclaimed elite spaceship factions are even more eager to seize the starship, escape from this planet immediately, and continue the fire of humanity.

And this is the last chance for the spaceship faction, many of the core members of the spaceship faction have completely lost their minds, and this rebellion will directly determine the future of mankind.

During an investigation, Luo Zhou accidentally discovered that the spaceship faction had infiltrated the upper echelons of the military, and they even targeted the planetary engine, in a vain attempt to destroy the planetary engine and cause chaos, so as to seize the starship.

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