The horde of zombies outside Xu Zhengyang's shelter was not the kind that acted purely on instinct. Hidden among them were "commanders" or "military" types.
Because of this.
When they realized their forces were being "freeloaded" by Xu Zhengyang, they immediately chose to scatter and disperse!
It must be said.
The execution capability of these Blood Plague monsters was extremely high! In less than a minute, the massive horde of zombies had dispersed into scattered individuals! As a result.
Even if Xu Zhengyang continued to operate unmanned bombers to drop white phosphorus bombs, the same amount of ammunition would only achieve one-tenth of the previous results!
"Quite clever," Xu Zhengyang sneered upon seeing this.
At that moment.
Agile-type monsters had already rushed within five kilometers of the shelter! The radar on the surface of Xu Zhengyang's shelter spun rapidly, and red dots representing the monsters appeared on the radar display!
"Biu!"
"Biu!"
"Biu!"
...
With radar ranging, Xu Zhengyang's rail-mounted 7mm laser defense system could operate at full capacity without reservation.
Beams of laser accurately struck the Blood Plague monsters one by one.
The Blood Plague monsters' decision to scatter had made Xu Zhengyang's airstrikes unprofitable, forcing him to abandon them.
But after dispersing.
These isolated monsters became easy targets for the rail-mounted 7mm laser defense system to pick off with precision!
Even if one or two stragglers managed to reach the outer walls of the shelter.
"Ratatatatat..."
The four M2 Browning heavy machine guns Xu Zhengyang had installed on the shelter's watchtowers opened fire, instantly turning these monsters into sieves!...
Half an hour later, the storm subsided.
After Xu Zhengyang dealt with the first wave of the zombie horde, Da Bai suddenly said to him, "Master, be careful.
There are three more hordes of the same size approaching our shelter from three different directions.
According to my model calculations.
The nearest horde is expected to enter the attack range of the rail-mounted 7mm laser defense system in 13 minutes and 21 seconds.
But the greatest threat is this one..."
As Da Bai spoke.
He projected a real-time surveillance feed onto Xu Zhengyang's contact lenses. In the horde to the southwest of the shelter.
There were six Blood Plague behemoths, each thirty to forty meters tall! "A siege team of behemoths?" Xu Zhengyang's interest was piqued upon seeing this, and he immediately launched his drone fleet, sending them charging toward this team of Blood Plague behemoths!
...
Over the past few days.
Xu Zhengyang had designed various drones with different functions.
Among them, the one he was most satisfied with was the mother-son drone group he named "Magnetic Rod."
The mother drone of the Magnetic Rod was a "big-bellied" drone, 13.2 meters long, with a maximum flight speed of 320 kilometers per hour.
Inside the mother drone's belly.
Were 22 child drones, stripped of all fancy functions, designed for maximum flight speed while cramming as much C4 as possible into them! To reduce weight and carry more C4.
The child drones' battery packs were small, allowing them to fly only up to 10 kilometers.
When the mother drone ejected the child drones from its belly, the child drones could instantly reach a flight speed of 560 kilometers per hour!
At such speed and with such a rudimentary design.
Even if an elite drone pilot were to operate them, the hit rate would be pitifully low.
But Xu Zhengyang was different.
He had the Quantum Mapping skill, making the drones feel like extensions of his body, responding to his every command! Additionally, Xu Zhengyang could use the Total Concentration skill to slow down time, giving himself more reaction time.
Thus, under his control, the Magnetic Rod mother-son drone group could unleash its full theoretical potential!...
"Boom! Boom! Boom! Boom..."
Xu Zhengyang launched a total of twenty Magnetic Rod mother-son drones.
After all the child drones accurately exploded on the Blood Plague behemoths, even these thick-skinned giants were left gasping for breath, more dead than alive.
After dealing with the Blood Plague behemoth siege team, mopping up the remaining ordinary monsters was as easy as eating and drinking for Xu Zhengyang.
None of those monsters even reached the walls of Xu Zhengyang's shelter, falling one by one on their charge.
After Xu Zhengyang eliminated the last zombie in the horde, a series of system messages finally appeared before his eyes: [Main Quest: Blood Plague Horde (In Progress)]
[Reward Obtained: Shelter Plugin - Energy-Gathering Optimization]
Not a single mistake in the content, all in 69 Book Bar!
...
[Shelter Plugin - Energy-Gathering Optimization]
[Effect: When equipped in the Shelter Control Center, reduces the shelter's overall energy consumption by 20% without affecting performance.]
The amount of electricity Xu Zhengyang's shelter consumed daily was an astronomical figure!
The planting area, various production lines, teleportation platforms, electromagnetic shields...
All of it.
Every single thing in Xu Zhengyang's shelter was a power-hungry beast, and none of them could be shut down! "Not bad, not bad."
Xu Zhengyang nodded in satisfaction after seeing the plugin's attributes, then immediately equipped it in the Shelter Control Center.
After completing this.
Xu Zhengyang finally opened his task list to check the latest main quest:
[Main Quest: Expansion V (In Progress)]
[With your rapid development, the current space of the shelter can no longer meet your future needs.
To ensure the shelter's continued growth, please expand the shelter once more!]
[Quest Objective: Maintain current construction standards and expand the shelter's internal area to 100,000 square meters.]
[Quest Reward: Energy-Gathering Electromagnetic Cannon (Design Blueprint)]
After reading the quest details, Xu Zhengyang didn't hesitate and immediately gave Da Bai the order, "Maintain the current construction standards and expand the shelter to 100,000 square meters!"
"Understood, Master."
Da Bai acknowledged and sent an engineering plan to Xu Zhengyang's contact lenses, adding, "According to my real-time model calculations.
With our current production capacity, it will take approximately 57 days and 21 hours to complete the entire project."
"Nearly two months?"
Xu Zhengyang was very dissatisfied with this timeline, so he asked Da Bai, "Didn't we just build a heavy factory?
If we use the heavy factory's capacity to produce engineering robots, how much can we speed up the construction progress?"
"The fastest would still take 18 days and 12 hours," Da Bai said, sending the optimized plan to Xu Zhengyang's contact lenses.
Xu Zhengyang quickly reviewed the new plan.
Confirming that Da Bai had already compressed the timeline to the limit with no room for further improvement, he said to Da Bai, "Then let's start now!"
"Understood, Master."
Da Bai acknowledged and immediately began expanding the shelter.
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