Are you ready for a thrilling challenge in Atomfall? Unlocking the Protocol Documents Chest proves to be one of the most demanding tasks in the game. This chest, owned by Captain Grant Sims, necessitates the defeat of numerous protocol soldiers before you can claim your prize.
Although the chest doesn’t provide any game-altering loot or substantial rewards, it offers an exhilarating test of your skills that can elevate your overall gaming experience. This guide will walk you through the steps needed to locate the key and unlock the Protocol Documents Chest in Atomfall.
Locating the Protocol Documents Chest in Atomfall
The Protocol Documents Chest can be found in the Village Hall (coordinates: 33.4 E, 79.3 N) situated in Wyndham Village, where you’ll find Captain Grant Sims. Accessing this area is straightforward and doesn’t expose you to any enemy threats. Simply enter the hall and make your way behind the platform occupied by Sims. However, be aware that the chest remains locked until you acquire the necessary key.

How to Obtain the Protocol Documents Chest Key
Your next task is to secure the Protocol Documents Chest Key, which is hidden in Wyndham Village at the Protocol Outpost (coordinates: 34.9 E, 80.8 N). You’ll find it inside a box located atop a building characterized by its wooden platforms and accessible ladders. Keep in mind, guards will be stationed vigilantly around this area.

This area is deemed off-limits — even if you maintain a cordial relationship with Captain Sims. Once you step inside, you will be labeled a trespasser, instantly triggering an attack from all enemies in sight. There are no alternate routes leading to the rooftop, compelling you to navigate the ladder and face incoming soldiers.
Prior to making your move, ensure you are well-equipped with ample ammunition and dependable weapons. It’s advisable to stockpile first-aid kits and craft bandages ahead of time. Don’t forget to take painkillers beforehand, as crafting mid-battle isn’t feasible.
Upon reaching the rooftop, retrieve the key from the crate. Instead of descending via the ladder, opt to slide off the right side of the roof. This method allows for a safe landing on the ground. Once you are down, dash back to the Village Hall, as the enemies will have ceased hostilities.
Unlocking the Protocol Documents Chest

Once safely back inside the Village Hall, approach the Protocol Documents Chest and insert the key to unlock it. The contents of the chest include:
- Peerless SMG (Stock)
- Grenade
- Combat Stim Recipe
- SMG Ammo
- “One Spike in the Concrete”Note
- Sims’ Personal Diary
This guide encapsulates everything you need to know about unlocking the Protocol Documents Chest in Atomfall.