Specializations are new features introduced in Halo 4. After a player reaches SR-50, he can choose a Specialization. Progressing in a Specialization's rank will unlock additional armor, emblems, and loadout options. After a player completes all 10 ranks of a Specialization, he can select a new Specialization. Upon completion of all Specializations, the player's player card will display Mastery instead of a Specialization name.
There are a total of 8 Specializations. At Halo 4's launch, only Wetwork and Operator were available. Pioneer and Pathfinder were unlocked on 1/21/2013, Engineer and Stalker were unlocked on 1/28/2013, and Rogue and Tracker were unlocked on 2/4/2013.Those who purchased the Halo 4 Limited Edition or played Halo 4 while connected to Xbox LIVE by November 20, 2012 had access to all 8 at launch.
Selecting a Specialization will advance you to rank 1 of that Specialization. For example, an SR-50 player who chooses the Rogue Specialization will be immediately promoted to RG-1/SR-51 without needing to earn any XP. Each specialization offers 10 new ranks and unlocks as follows:
- Foreground Emblems
- Weapon Skin & Emblem Background
- Visor Color
- Torso Skin
- Shoulders Skin
- Helmet Skin
- Support Upgrade/Tactical Package.
Wetwork - WKEdit
"Spartan optimization for stealth operations which focus on the elimination of an enemy target with the goal of leaving no tactical footprint behind."
Pioneer - PREdit
"Spartan optimization for deployment into uncharted, hostile territory (such as uncolonized worlds or forerunner installations) for the purpose of gathering/relaying information."
Pioneer-class armor was worn by Spartan-IV security escort detail during initial forays on Shield World Trevelyan and Installation 03. Completing all ten levels of the Pioneer Specialization unlocks the Fast-Track Tactical Package.
Engineer - ENEdit
"Spartan optimization for the subversion, repair, and/or reconstitution of a wide range of technology, including Covenant and Forerunner complex networks."
Completing all ten levels of the Engineer specialization unlocks the Drop Recon Support Upgrade.
Tracker - TKEdit
"Spartan optimization for long range target tracking [trans-continent and off-world]. particularly in scenarios where conventional tracking has failed or such a substantial time has passed that the trail has gone cold."
Completing all ten levels of the Tracker Specialization unlocks the Requisition Tactical Package.
Rogue - RGEdit
"Spartan optimization for single-operative missions which require a Spartan to be deployed on their own for incredibly long durations of time, even years if required."
Completing all ten levels of the Rogue Specialization unlocks the Stability Support Upgrade.
Stalker - SKEdit
"Spartan optimization for target shadowing missions which require tactical invisibility despite operating at an extremely close range to the target itself."
Completing all ten levels of the Stalker Specialization unlocks the Nemesis Support Upgrade.
Pathfinder - PTEdit
"Spartan optimization for deep, unconventional deployment within unknown enemy territory and with little to no assistance from Command."
Completing all ten levels of the Pathfinder Specialization unlocks the Gunner Support Upgrade.
Operator - OPEdit
"Spartan optimization for the operation and control of a wide-range of vehicles, space, air, ground, and sea."
Completing all ten levels of the Operator Specialization unlocks the Wheelman Tactical Package.