From Halopedia, the Halo wiki
While Kig-Yar Storm were shock troops in the original Covenant, post-war they fill virtually the same role as Kig-Yar Minors.
The Kig-Yar Storm combat harness can be found in red, turquoise, and orange. Their Kig-Yar point defense gauntlets are purple. During the Battle of Requiem and the Requiem Campaign Kig-Yar Storm commonly fielded Type-25 plasma pistols and Type-33 needlers, while sometimes using Type-51 carbines. By October, 2558, Storm units had switched to the Type-54D plasma pistol and Type-56D needler as their primary weapons.
Kig-Yar Storm are relatively easy to defeat by using a precision weapon such as the Type-51 carbine or the M395 DMR to aim between the gaps in their point defense gauntlets. They can also be easily brought down using an overcharged Type-25 plasma pistol shot to the shield, followed by a precision headshot. At close range, they can be killed with one or two melee strikes.
List of appearances