Mobile Task Force Nu-7 is a battalion-strength force consisting of three company-sized elements of special operations infantry forces along with a variety of other trained and equipped personnel. Nu-7 is often times the first responder to Class-D and SCP's. Nu-7 units are currently stationed within the site. in order to bolster security due to recent concerns regarding a lack of internal security. 

Mobile Task Force Delta-5 is a specialized operational unit comprised of multiple autonomous deep-cover cells specializing in the identification and pre-emptive acquisition of anomalous objects and entities of interest to other Groups of Interest. Currently stationed out of the site to further enhance internal security and study the common targets of GOIs, Delta-5 are the first responders to all GOI raids and attacks.

Mobile Task Force Alpha-1 is a specialized task force that serves the O5-Council. These members of the task are redacted, and you should not say the term "Red Right Hand" These words are redacted, saying it will lead to punishment that seemed fit by Alpha-1 members. You may say Alpha-1 or A1 around them. Their operations are unknown and are on a strict need-to-know basis, if caught snooping in their operations, well no one knows, so don't do it. 

General Security personnel or GenSec is the standardized security department stationed at almost every SCP Foundation-affiliated Site and Area. Stationed at Site-13 to handle and overseer Class-D personnel on site, GenSec are the first responders to any and all D-Block issues. The majority of GenSec will patrol and secure D-Block will also escorting Researchers into restricted containment zones. 

The primary military component of the Group of Interest the "Chaos Insurgency". Made up largely of former Foundation MTF members and led by Former Foundation Overseer Personnel, CI Mil is a true threat to the integrity of the S.C.P. Foundation. They are here to cause havoc and accomplish their goals by any means necessary and will the primary GOI found on site. Often times CI Mil will raid alongside their R&D counterpart, while R&D conducts research and development, CI Mil will typically assault the facility and attempt to free and recruit D-Class personnel. CI Mil will also ascertain hostages for interrogation purposes, should foundation personnel come under the hands of CI, they are to be terminated if rescue is not an option.

The primary research component of the Group of Interest the "Chaos Insurgency". Made up largely of former Foundation research staff and lead by former Foundation Overseer Personnel, CI R&D is an advanced and technical threat to the foundation often times raiding alonside their military counterpart in order to obtain information on the Foundation and the SCPs and internal systems housed within the site. CI R&D contains some of the smartest and most advanced individuals within the "Chaos Insurgency". CI R&D will often times attempt to take hostages or conduct on site interrogations in order to obtain critical information about the facility and its systems, should foundation personnel come under the hands of CI, they are to be terminated if rescue is not an option.