With the recent proliferation of MJOLNIR GEN2 armor comes the leveraging of a variety of armor mods, capable of enhancing a Spartan’s combat performance in the field. Critical to these are Support Upgrades, ad hoc technology-based enhancements to a Spartan’s armor functionality when introduced into their loadout. Support Upgrades focus on augmenting combat resiliency during engagements, specifically over protracted firefights and combat scenarios

There are 11 support upgrades as followed:

(Note: In the in-game list of Support Upgrades, it says that there are 12. That is because there is the option to not have any Support Upgrade, listed as none and counting as the 12th item in the list.)

Ammo:

Increased ammo storage

Dexterity:

Speeds up reload and weapon swapping.

Sensor:

Increases both the range and sensitivity of the motion sensor

Awarness:

Ability to see motion sensor even when using scoped-in weapons

Stability (unlocked by completing the Rogue Specialization):

Steadies your weapon while being struck by incoming fire.

Explosives:

Alters grenade performance, increasing blast radius and decreasing grenade damage received.

Stealth (unlocked by completing the Wetworks Specialization):

Allows Spartans to Sprint quietly. They also appear as an outline to players using Promethean Vision and perform quicker assassinations.

Gunner (unlocked by completing the Pathfinder Specialization):

Increases how long a mounted weapon can fire before overheating as well as movement speed with detached turrets.

Ordnance Priority:

In modes with personal ordnance, offers more frequent ordnance drops

Nemesis (unlocked by completing the Stalker Specialization):

Marks the enemy responsible for your last death

Drop Recon (unlocked by completing the Engineer Specialization):

Allows you to see when and where ordnance drops are coming on the map