Special Operations Officer

Special Operations Major, or SpecOps Major for short, is a Covenant Sangheili (Elite) rank.

Rank
A SpecOps Major is a position within the Special Operations Divisions of the Covenant, leading groups of Special Operations Commandos into battle against their enemies. They are subordinate to Special Operations Commanders, or Ultras.

Summary
The role of such Elites is to lead a troupe of lower ranked Special Operations Minor forces, similar to the role of the higher ranking Special Operations Commanders, but the troupe that SpecOps Officers command holds fewer troops than the one commanded by Special Operations Commanders.

Armor
In Halo: Combat Evolved, it's impossible to see any armor difference from other Special Operations Minors, but in Halo 2, they are the only Elites that have wholly black-colored armor, as opposed to the extreme dark-purple of regular commandos.

Halo: The Flood
So far, the only identified and branded Special Operations Officer and was mentioned firstly in "Halo: The Flood." Officer Zuka 'Zamamee was tasked with leading a team to board the Pillar of Autumn and was injured in combat by the Master Chief. He was evacuated by a group of Grunts more concerned for their own safety than actually saving him. After he recovered, he requested permission to track down and kill the Master Chief, believing him to be the greatest threat on the Halo. Permission was denied until the UNSC's raid on the Truth and Reconciliation, where the Covenant learned first-hand how effective the "Demon" really was in battle. 'Zamamee was deployed, with the promise of reward for success...and great punishment for failure.

Though his several attempts all failed, in part because of John-117's skill and partly because of pure tactical plans, 'Zamamee continued his attempts, driven by the knowledge that he would be executed for failing to do what he himself suggested. He was killed by the Master Chief while operating a Shade, trying to kill the Master Chief.

"Halo: The Flood" mentions that a Special Operations Officer is two ranks below that of an Aristocrat, presumed to be a Councilor. This, however, cannot be because that position is held by the Ultra rank. It may be that the Aristocrat was low-ranked or that Special Operations Officer is a rank comparable to an Ultra.