Office of Naval Intelligence (Vadumverse)

The Office of Naval Intelligence is the United Nations Space Command's primary intelligence agency, whose primary functions include collecting and analyzing information about subversive factions within the UNSC, as well as the Covenant.

ONI has become known for their preeminent role in the acquisition and leveraging of military intelligence. The agency is widely known for using subterfuge, deception, and manipulation in defense of humanity in order to accomplish its goals.

Section Zero
Section Zero is ONI's Internal Affairs department, charged with rooting out and eliminating illegal programs. Section Zero also investigates incidents and plausible suspicions of lawbreaking and professional misconduct attributed to ONI agents. Section Zero is very discreet in its work; the true nature and activities of the division are highly classified and unknown outside the ONI command hierarchy. However, it appears that the other sections of ONI know Section Zero exists and while they are successful at deceiving Section Two, Sections One and Three are not as easily lied to and all three other sections are not easily spied on.

Section One
Section One is the primary intelligence gathering and analysis section, and are most often utilized by UNSC forces. Its responsibilities include information gathering and codebreaking though military espionage.

ONI Security and Reconnaissance Agency
ONI SARA is responsible for intelligence gathering through means of surveillance and espionage. This agency is utilized primary by Law Enforcement agencies to gather and share information on various criminals and threats.

Section Two
Section Two utilizes psychological warfare, particularly propaganda, to produce specific psychological reactions in both the general population and military forces to support its political and military objectives.

Section Three
Section Three is the top-secret projects division of ONI that oversees the various groups responsible for creating new innovations through the use of advanced alien technology. It is responsible for the SPARTAN-II and SPARTAN-III programs and many other black operations. Though a few of Section Three's programs are well-known and are widely celebrated for their success, the UNSC Marine Corps and top brass of the UNSC treat most with contempt.

CINCONI

 * (2552-2555)
 * (2555-2570)
 * Veronica Anders (2570-???)
 * Andrew Johnson (???-???)

Scientists

 * Vincent Kaiser (Chief Scientist from 2532-2597)
 * John Stenson (Assistant Scientist from 2590- 2597) and (Chief Scientist from 2532-2597)

Mercenaries

 * David King (Former 2552-2560) and (Rehired in 2573, terminated and subjected to execution after betrayal)