Wasteland Calendar Day 43: Another Major Hideout Upgrade

Over the next few days, Yu Yuan poured all his energy into upgrading and building the Hideout.

With Carmen at the Black Shield Police Department and Mona at the Aurora Animal Assistance Society, he still couldn't access either Faction's stockpiles directly.

But the intelligence those organizations provided was enough for him to locate the right supply sites quickly and gather what he needed.

Carmen also arranged for Erxiao to dismantle the relevant areas in advance, making it much easier for Yu Yuan to collect the materials.

On top of that, Taotao Cave was buying supplies aggressively.

The Hideout's facilities were being replaced and upgraded at a rapid pace.

[Multiple Airlock Doors], [Environmental Shielding Shell], [Air Pressure and Ventilation Duct System], and [Emergency Lighting System] were all complete.

The [Security] entrance had been replaced with heavy multiple airlock doors. Three sealed doors formed two enclosed transition chambers, and the doors could not be opened at the same time.

This greatly improved security by trading space for safety. It also kept the freezing outdoor air out as much as possible during extreme cold.

The outermost layer of every Hideout wall was wrapped in stainless steel plate, providing strong resistance to corrosion and aging while ensuring waterproofing and airtightness.

Rigid polyurethane foam had been added inside the walls as insulation, and thermal bridges had been eliminated to keep heat from escaping the Hideout as much as possible.

The latest upgrade to the Hideout's [Ventilation] facilities also addressed air heating.

Although the Hideout was underground, and every previous Optimization Path for [Ventilation] had focused on using the soil's temperature to warm incoming air, that was still nowhere near enough for a Cold Wave that could reach −98°C.

Yu Yuan added two safeguards. First, he ran Heating Pipes from the [Geothermal Well Plate Heat-Exchange Plant]