This nap.

Chen Mang slept for a long time.

In a haze, he had a dream where he was fighting with a thug armed with a pistol in a high-rise building. After a long struggle, he finally killed the thug, only to find the thug's gun was fake.

"What a crappy dream."

Rubbing his eyes, after getting up and washed, Chen Mang lit a cigarette again and sat in the chair to review the "Train Log". He had slept for 12 hours, quite a long sleep, and woke up feeling somewhat sore.

A flash of white light flickered inside the train room, followed by Ai's voice.

"According to the data I obtained from the ruins of the last city, there are speculations about dreams, stating that during sleep, the brain waves of organisms are in a special and stable state, with a probability of forming resonance with the brain waves of other creatures in the universe, thus creating dreams."

"..."

Chen Mang didn't respond to Ai, feeling that Ai's thinking ability was still lacking. Not every question needed a response; at least he wasn't interested in hearing any answers to that statement, especially speculative ones.

He glanced out the window.

Brightly lit.

A crowd of residents were mining in the quarry beside the train, with three teams of guards maintaining order, while the rest of the guards were in the train's "Combat Training Virtual Space".

Nothing unusual happened while he was asleep; everything was normal.

The only abnormal thing was.

The current time was seven in the evening.

His biological clock was messed up again.

Though in this doomsday world, biological clocks didn't seem so important.

His plan for today was...

The modification of the train!

After the "Train Expansion", many issues arose that needed careful modifications; for instance, after the train expansion, the doors appeared at the very top of the carriage, a full ten meters from the ground, requiring ladders for each entry and exit.

He needed to move all carriage doors except for the train head to the bottom of the carriages, making them only about two meters from the ground, easier for access.

"Hmm..."

Sitting at the control panel, he pressed the custom carriage button and then continuously adjusted on the three-dimensional train model displayed on the screen.

Minutes later.

Finished adjusting quickly; now the doors were at the lowest part of the carriages. He had initially wanted to make a ladder using the Mechanical Heart, but found escalator templates for sale in the custom carriage interface, reasonably priced.

Spent 1400 units of iron ore to make an escalator on both the left and right sides of each carriage, except the train head.

The escalator could be up to 30 meters wide, almost covering the carriage.

This was much more convenient.

Next—

The spatial modifications, the main function of the "Train Expansion", were still intended to install some large firepower accessories and ensure more ground troops could quickly reach the combat area.

For instance, with the carriage doors opening, mechas could fly straight out.

The downside was a distorted sense of space.

The original train room, though small, was cozy. The expanded space felt a bit empty and uncomfortable, requiring reevaluations for the train room.

...

"Hmm..."

Chen Mang stood in place, directing Fang: "Fill the left shelf completely with cola, the right one with cigarettes, the cigar cabinet with cigars, and... let me check more."

The train head was 10 meters wide and 21 meters long.

The train room was 10 meters wide and 12 meters long.

The head took up 9 meters.

Covering approximately 120 square meters, larger than a refrigerator, using the Mechanical Heart to create two shelves for snacks and other items, he felt two were enough; more would make it look like a shop.

"Hmm..."

With arms crossed, Chen Mang frowned slightly dissatisfied, looking around. It still wasn't satisfying; his control panel occupied about 2 meters, surrounded by several screens.

There was a chair in front of the control panel.

With control sticks, throttles, etc., mainly controlled through mind. This equipment was for adding a sense of reality to control, not leaving emptiness, providing some physical feedback.

A larger screen was on the right of the control panel.

He often used this screen to watch movies, or for information-rich activities displayed on it.

Besides that.

There was a refrigerator, a Combat Training Virtual Space, and a Gate of Space.

These were all the items in his train room.

The most important point!

The train's internal space was 10 meters high, perhaps for a better Train Captain's view, the train room was split into two levels: the first level 7.2 meters high, and the second 2.8 meters.

The control panel and such were on the first level.

This arrangement allowed the Train Captain to overlook the surroundings for better visibility, which was why during train expansion, all doors defaulted to the top of the carriages, accessible via ladders.

He wasn't planning to change the train room.

He thought it was quite good this way; the visibility was indeed excellent.

After pondering for a moment, Chen Mang went to the control panel, decided on manufacturing floor-to-ceiling windows for the second level, making all its surroundings floor-to-ceiling windows for better translucency.

Defense equaled armor.

Just pricey, consuming 300,000 units of iron ore.

"Hmm..."

After completing everything, Chen Mang walked to the edge, overlooking the residents working hard below. It indeed felt good; afterward, he constructed a level-1 missile and had Biaozi and the others bring a missile into the train room for him.

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