Kelos'vaarda-pattern storm rifle
From Halopedia, the Halo wiki
The T55 DER/A was created to be a successor to and direct evolution of the widely used Okarda'phaa-pattern plasma rifle; however, it is more similar to the Nakata'vho-pattern plasma repeater, itself an upgrade of the T25, in both form and function. The weapon features such modifications as a rotating modular coil set, a high-mounted cooling shroud, and an extended barrel, which improve upon the features of the standard plasma rifle it replaced the role of.
After decades of success with armor systems, Lodam Armory branched out into creating weaponry, with their first desire being to fashion a multi-role rifle meant to replace the Okarda'phaa-pattern plasma rifle within the Covenant ranks. The result would be the Storm Rifle, a directed energy rifle that carried with it the heritage of Lodam's Storm harness. While the baseline Storm Rifle wouldn’t be fully catalogued and designated until 2555 by the UNSC, its existence spans decades, and in that time, Lodam Armory produced several experimental and enhanced variants. Earlier iterations of the weapon were often more specialized and employed by Storm-class units within the Covenant. Eventually, the design was improved by Lodam Armory by 2553 and saw use during Sangheili civil conflicts following the Human-Covenant War's conclusion.
Jul 'Mdama's Covenant and the Swords of Sanghelios both use the Type-55 as their standard-issue weapon. The Spartan-IVs deployed aboard the UNSC Infinity also use the Storm Rifle as part of their on-mission loadouts, despite it being of non-UNSC origin. It is ranked a Common REQ in Warzone simulations, and is available at Level 1 energy while giving 50 REQ points if sold.
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