Sniper Elite 5 Atlantic Wall Classified Documents are collectibles that can be found on desks, tables, and safes throughout the mission. Classified Documents in Sniper Elite 5 usually provide key intel and important information about your current mission.
Where To Find the Atlantic Wall Classified Documents in Sniper Elite 5
The Atlantic Wall Mission features four Classified Documents, most of them in the northern part of the map.

So, following the same order as the one on the map above, here is how to get the 4 Atlantic Wall Document collectibles in the video game developed by Rebellion for PC, Xbox, and PlayStation.
Classified Documents #1 (Resistance Captured)
As you leave the shore, you’ll have to neutralize an officer near the start of the mission. Search his body for the boathouse key and unlock the door to get inside. You will find the first Classified Document collectible on the table opposite the door you just unlocked.

Classified Documents #2 (Lacking Air Support)
There’s a safe you can blow open with Satchel Charges beneath the Radar Tower, near the room where you need to use the crowbar to overload the generator during the main objective, “Neutralize Radar.”
The safe contains the Lacking Air Support Document, as well as a large amount of ammunition and bandages. If you don’t have any Satchel Charges, you can find them in the trenches nearby.

Classified Documents #3 (Atlantikwall Report)
There are a couple of townhouses near one of the anti-air weapons in the northern area of the map, directly west of the Radar Tower. There is a safe in the kitchen area that requires a Satchel Charge to open.
Inside is the Atlantic Wall Classified Document Atlantikwall Report alongside a medkit. If you don’t have any Satchel Charges, you can loot the safe key from one of the troops outside once you kill them.

Classified Documents #4 (Beach Defences)
During the Destroy the Battery Gun optional objective, a safe can be found in the north-western area of the map, in the Armory where SMG Workbench is located. You can either loot the nearby officer for the key or use a Satchel Charge to get inside. Inside is the Beach Defenses Document alongside supplies.
