Editing Setting:Brighthammer 40,000/3rd edition (section)

=== The Imperial Secret Service ===
His Imperial Majesty's Secret Service

When dark forces rise, the Secret Service is there to cut them out, quietly and stealthily. They are the secret agents of the Emperor, acting on his authority when all peaceful measures fail. When mad psykers arise, they are there to take them out. When corrupt governors starve their people, the Special Agents are ready to remove them. Notably, they are not as extreme as their Warhammer 40k counterparts (the Inquisition) and are mostly focused upon more James Bond like secret agent action.

* The Imperial Secret Service is split into four departments. Three are approximately the same size, and tasked with defending the Imperium from one type of threat:
** The Ordo Malleus, Order of the Hammer, works with Master Horus and his ascended Primarch brethren to pacify destructive emotional and psychic energies (Or Emotional Entities, as they are called.) Many of its mightiest secret agents are recruited from the ranks of the Adeptas Sororitas.
** The Ordo Xenos, Order of the Outsider, works to prevent outside threats from threatening all sentient life in the Imperium. Space Marines fight for the chance to join the Black Watch, tasked with fighting outside threats not even the mighty Space Marine chapters can handle. 
** The Ordo Res Publica, Order of Public Affairs, works to fight corruption and tyranny in the Emperor's name, so that his promise to protect the life, liberty, and pursuit of happiness of all mankind is not betrayed. 
** Finally, there is one order that reports directly to the Emperor, for they are his eyes and ears- The Ordo Sicarius. The Secret Service makes use of several different specially trained operatives, apart from general Special Agents. These individuals are usually trained at specialized combat schools from the elite of the elite.

* Callidus School is dedicated to infiltration tactics, scouting, information gathering, and is skilled in innumerable arts of misdirection and disguise.

* Eversor School is for assault, designed to take on even the strongest foes in single combat, and receive a number of physical, mental, and cybernetic enhancements. WRRRRRYYYYYY-

* Vindicare School is dedicated to long-range support, master of weapons, especially sniper-based ones. The noble fallen knight LIVII belonged to this organization.

* Culexus School trains specialized individuals who are capable of uplifting morale to immense levels and increase the performance and natural healing abilities of their companions, despite lacking psyker capabilities. (The reverse of the Pariah trait) These individuals are incredibly rare, but make highly effective team leaders.

All are recruited from existing special forces and receive the Inquisitions best training in general operations before proceeding on to their permanent combat school, in which they receive training in their specialized area.

After the training at their respective schools, they go to a third phase of training where all of them will attend the same school for team building and developing alongside each other to use each others strengths to eliminate all the weaknesses they had as individuals. After graduation, they are known as Imperial Special Forces, second only to the Astartes in terms of awesomeness.