Per 
Item Number: SCP-XXXX
Object Class: Keter
Special Containment Procedure:
An area of 1km around SCP-XXXX is to be fenced off with barbed wire, and shall be under the disguise of an old German minefield. Signs labeled “Achtung! Minen” Shall be placed 10m apart from each other, and shall be 5m away from the barbed wire perimeter. An inner perimeter is to be established 250m away from SCP-XXXX, that shall be fenced in with razor wire and have anti-personnel mines place 1-meter away from the fence. SCP-XXXX will have guards armed with high-caliber squad automatic weapons stationed 50m away from the inner perimeter.
Description:
SCP-XXXX is a German WWII concentration located 50km outside of ███████, Germany. It is an exact copy of Auschwitz 1 on the outside, with a few key differences. The camp is approx. 5km smaller, with the buildings being made of grey bricks, and the steel being significantly more oxidized. SCP-XXXX shows no sign of activity on the outside, with no animals going within 3km of XXXX. When entering through the main gate, subjects enter SCP-XXXX-O1, which is an exact copy of XXXX without a grayscale filter.
When exiting XXXX-O1 through the main entrance, subjects appear outside the main entrance of SCP-XXXX. If exiting through the exit, subjects are able to wander a mirrored version of Earth. This mirror Earth is mostly unoccupied, with the only humanoids found in other Nazi bases. These other bases have no anomalous properties, but do refine anomalous materials, and make items with said materials. There are 5 bases in total, with XXXX-O1 acting as the only enteriance and exit between worlds. For more detailed descriptions of each base, see the below tabs.
Instances of XXXX-2 stay inside of XXXX version of earth when there are more than 250,000 instances of XXXX-3 inside XXXX. In the event that there are less than 250,000 instances of XXXX-3, XXXX-O1's exit becomes active, and randomly activates the exit of an inactive instance of XXXX-1. Instances of XXXX-2 then exit XXXX, and proceed to move to the nearest populated area. They then capture as many humanoids that fall within the requirements for instances of XXXX-3. Once the town is “purified”, all instances of XXXX-2 return to XXXX with the new instances of XXXX-3, and the exit goes offline once everyone is in (see Addendum XXXX-2a).
SCP-XXXX-O1 is an exact copy of Auschwitz 1, and serves as a mining camp for anomalous and non-anomalous materials. XXXX-O1 is inhabited by 2 different humanoid types: SCP-XXXX-2 and SCP-XXXX-3.
SCP-XXXX-2 appears to be human males, being anywhere between 1.5 and 1.7m tall, and in uniforms identical to that of the SS-Totenkopfverbände. They only communicate in German, and are known for being extremely violent to those without proper identification. When asked who they report to, they only respond with “Der Kommandant”.
XXXX-3 appears to be humans, with the only thing similar is their clothing. Their clothing is made of linen, is loose-fitting, and is typically not dyed. They live in mass housing, and are either worked to death, or terminated after six months. They all have different memories of events before they entered XXXX-O1, suggesting that XXXX exists in multiple dimensions.
Instances of XXXX-3 enter a mineshaft at exactly 06:00 every morning, and exit at 15:00. During that time, they mine an anomalous mineral, henceforth designated as XXXX-4. This mineral is called “Führinm” by XXXX-2. This material is similar to titanium, but has a melting point 500°C higher. The use inside the universe of XXXX is unknown, but it is suspected to be used as a heat shield for ICBMs and other spacefaring vessels.
