building and climbing the ladder.

Upon arriving in Preoria, you'll find the inhabitants friendly. Explore the tents to find a chest containing ammo and Rad-Away.

Head north onto the cliff. In the northernmost corner, loot two dead raiders. Another dead raider with significant loot can be found halfway down the northeastern map edge, near a dead tribal carrying only voodoo.

Before descending the stairs, speak with the shaman located at the north end of the village by the garden. He will provide you with Rad-X. Note that turrets in this area can be looted for approximately 40 large energy cells each.

Proceed down the stairs and be aware of a radscorpion lurking behind them. After defeating it, loot the nearby dead tribals.

Continue south to a room with shelves, then proceed through the door into the next room, where you will encounter and fight several roaches. An ice chest in this room contains fruit and a Super Stimpak.

Move carefully into the hallway and eliminate smaller roaches. Be cautious of a larger radscorpion further down the hall.

Proceed to the room at the end of the hall. Inside, you will find more small roaches, shelves, and a fridge containing Rad-Away. On the shelves, you will find the Yellow Pass Key, which is crucial for later progression.

Return to the stair area and head northeast. In the first room on the right, you will find roaches that are worth experience points but offer no other loot. The first room on the left also contains small roaches and little else.

In the second room on the left, locate a single crate in the center of the room for some loot.

Proceed around the corner (southeast) and clear the roaches in the southwest room. This will grant access to a desk containing a gun magazine.

Enter the northeastern room, which contains two large roaches. It is advisable to position most of your squad outside the door to engage them effectively as you open it, potentially wounding them with the initial volley. The reward for clearing this room includes an ice chest, crate, fridge, and shelf, containing food and small energy cells.

Your next objective is to clear the exercise room, located to the northeast. This room has two doors (northwest and southeast) and contains numerous roaches, including two large ones. A locker against the northeast wall holds Rad-Away.

Move into the adjacent room to the southeast, which is a complex containing an office.

Attempt to engage the several large roaches in the room with shelves from a distance, drawing them towards your position. Be aware that they can spit. Once they are defeated, search the desk in the bunk room for a gun magazine and the large white desk under the monitor in the room with the hole in the floor.

Finally, enter the office. If you possess the Yellow Pass Key, you can proceed further.