Halo Alpha
Halo Alpha

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The T-55 Directed Energy Rifle/Advanced,[1] or Storm Rifle, is the evolution of the standard Plasma Rifle and served various infantry during the violent Sangheili civil conflicts that followed the Human-Covenant war. The weapon now includes a modular coil set, a high-mounted cooling shroud, and an extended barrel, all contributing to greater overall performance in the field than its predecessor.

As the name might suggest, the fully automatic weapon unleashes a "storm" of projectiles upon firing - rapid and deadly at close to medium range, but less accurate at longer ranges. However, it overheats within approximately 5 seconds of continual fire, though this is generally still plenty of time to deplete shields of and kill a number of hostiles. It seems the Sangheili have traded the slower, yet more accurate and longer range weapons of the past for more aggressive variants, influenced by the Jiralhanae "Jiralhanae force" tactics evident through such items as the Jiralhanae variant of the Type-25 Directed Energy Rifle. The weapon also appears to be similar to the Plasma Repeater, though it lacks the former's ability to quickly vent waste heat.



The Storm Rifle has a high rate of fire, giving it the ability to take out shields with ease. It has a fair amount of shots before it overheats, letting the user continuously damage the opponent. At short range, it is relatively easy to keep aim on the target. It also does not need to be reloaded, as it cools down automatically without the action of the player.


The Storm Rifle is good against shields, but not quite as effective against armor. It will destroy shields but shortly after overheat, leaving the user vulnerable to a counterattack. At mid to long range, it is practically useless, meaning it is only a close range weapon. In addition, due it running off of a plasma battery, the player is unable to pick up additional ammunition for the weapon, thus, depleted storm rifles must be simply discarded or replaced.

Changes in the Halo 4 Weapon Tuning Update[]

Main article: Weapon Tuning Update
  • Capable of killing in three fewer rounds.[2]
  • Auto-aim angle has been reduced.[2]
  • Projectile spread has been decreased.[2]

Changes from Halo 4 to Halo 5: Guardians[]

  • Overheats much faster.
  • The revolving compartment below the receiver now spins as the rifle fires.
  • Slightly different firing sound.
  • Gains the ability to smart scope.
  • Color of screen changed to blue.
  • Screen projections changed to a more generic overheating gauge and battery meter.
  • Screen no longer projects interesting glyphs when overheating.


  • The Rifle has a heat display.
  • In Halo 4, one battery unit will be depleted when two plasma bolts are fired, meaning a fully-charged Storm Rifle can fire 200 bolts. With the ammo specialization enabled, it is possible to spawn with a Storm Rifle that carries a 150% charge. This means that it is capable of firing 300 plasma bolts.
  • The Storm Rifle removes SPARTAN-IV shielding in ten shots.



See also[]