Pez'tk-pattern fuel rod gun

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Looking for the closely related Covenant vehicle weapon, Fuel Rod Cannon or for the Assault cannon used by Hunters?

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"Those things are scary as hell. Ya hear that weird “whump” sound and even if ya see it comin' you're transfixed, these big green blobs flying at you throwin’ off sparks!"

— Anonymous Serviceman

The Type-33 Light Anti-Armor Weapon^[1], colloquially known as the fuel rod gun, is a Covenant shoulder-fired mortar/radiation weapon. It is also sometimes called the fuel rod cannon,^[2] though that term is usually reserved for vehicle-mounted weapons based on the same technology.

Specifications

Design details

A fuel rod gun schematic as seen in Halo: Combat Evolved.

A blueprint of the fuel rod gun in Halo: Reach.

The fuel rod gun, which was first encountered by UNSC personnel in 2531,^[3] is essentially a man-portable version of the fuel rod cannon that is mounted on Covenant vehicles - it is a support weapon that is commonly employed in both anti-personnel and anti-vehicle roles. It appears to be recoil-operated and fires 3.8cm explosive ballistic incendiary gel projectiles, that travel to the target in a parabolic arc.

The design of the Fuel Rod Gun is unique, more akin to large ornament than deadly weapon; the barrel of the weapon is long and black covered by thick gold plates that make up the body of the weapon; the ammunition is loaded on the top aft section of the fuel rod gun, and can hold up to 5 ballistic projectiles, which seem to be held together by straps, before needing to be reloaded. Because of the weapon’s visibility it is just as effective as a psychological weapon, it is often the case that soldiers will ignore closer, more obvious targets in order to eliminate a Type-33 and its operator.

The fuel rod gun is unique in the way it operates, its ammunition is placed one on top of the other to form a clip and then is loaded into the weapon; it is unknown what exactly holds the rods together. When the large "trigger" is pulled the weapon ejects the projectile at high speeds. It can be assumed that the instant the projectile leaves the barrel of the weapon, the large flash associated with firing the fuel rod gun destroys the caps that are on each end of the fuel rod projectile. The rods are equipped with an activation delay that protects the wielder from explosions caused by carelessly firing fuel rods into nearby objects, however a fuel rod will detonate if fired into enemies at point-blank range. The fuel rod gun is used by most Covenant infantry; Grunts are commonly seen wielding fuel rod guns, and more rarely, higher ranking Elites and Brutes are seen wielding them. The fuel rod gun is extremely powerful, and as such the Covenant went to great lengths to ensure it does not fall into enemy hands - for much of the Human-Covenant War, the prevalent model of the fuel rod gun was equipped with a fail-safe that activates under certain conditions, either by the user dropping the weapon without first engaging a safety, or if the weapon runs out of ammunition and is not reloaded after a certain amount of time.^[4] In late 2552, models without the the failsafe became more commonplace, preventing the weapon from being self-destroyed.^[3]

Ammunition

Main article: Fuel rod

The Covenant fuel rod gun fires radioactive projectiles colloquially termed as "fuel rods". These projectiles have devastating effects on their targets. When the fuel rod impacts an area, or target, it is instantly subjected to temperatures as hot as standard plasma weapons. The fuel rod gun's projectiles use a form of incendiary gel similar to a Mgalekgolo's assault cannon. Unlike the globs or beams fired by the assault cannon, however, the fuel rods are compressed canisters of the gel approximately 38mm in diameter which explode upon impact.

Advantages

The fuel rod gun is an extremely devastating weapon in the hands of a skilled infantry unit. The destructive power of the fuel rod gun is so effective that human forces often focus all of their attention on infantry wielding the fuel rod gun. For good tactical reasons, one strike from a fuel rod will instantly kill any light organic target. Infantry outside of the initial blast zone will be affected by the concussive force of the impact, which is strong enough to send them flying. Against light-armored vehicles the fuel rod gun is extremely effective as well, with the ability to flip small vehicles in only a few hits. The gun also takes less time to reload than the rocket launcher, can hold more ammo in both the magazine, has a very slight tracking ability, and has a faster rate of fire. In the context of the Halo games, the fuel rods' strength and lethality are compensated for both the sake of gameplay.

Disadvantages

Rods from the fuel rod gun have a smaller explosive radius than the M41 rocket launcher. In addition, the fuel rods will arc once in flight and lose their accuracy over long distances. The large size of the weapon obscures the wielder's peripheral vision, and it reduces the speed of weaker infantry holding it, because of its significant weight, unless it is a Spartan carrying the weapon, due to their superior strength. The bright color of the weapon makes the wielder easy to spot, even when the weapon is backpacked; the green flash that occurs when the weapon is fired, can also give away the users position. The fuel rods are also extremely slow in flight. As a result, Fuel Rods are particularly weak against most reconnaissance vehicles (Ghosts, Warthogs, Banshees, Brute Choppers, Mongooses) at long range. This is because the intended target will easily dodge the fuel rod. It also lacks the lock-on and destructive capabilities of the Halo 2 rocket launcher or Halo 3 missile pod. Also, in Halo 3, the fuel rods usually bounce off the ground, missing their intended targets, unless it is a direct hit or you are directly facing the surface, such as walls and even the Scarab's exterior, although very rarely would it ricochet off vehicles and infantry.

Variants

Assault cannon

Main article: Assault cannon

Hunters brandish a variant of the fuel rod gun known as the assault cannon. It operates differently than the standard fuel rod weapon, specifically in that it is a select-fire mode weapon capable of firing either fuel rod mortars or using the rod to generate a superheated beam. The assault cannon is integrated into the Hunters' armor and cannot be removed. As such, it is unusable in-game.

Fuel rod cannon

Main article: Fuel rod cannon

The fuel rod cannon is a vehicle-mounted variant of the regular infantry-issue fuel rod gun, and as such it is larger and more powerful. Examples of the fuel rod cannon include the Anti-Air Wraith's primary weapon and the Banshee's secondary weapon.

Changes

The weapon is not wieldable in the Xbox version of Halo: Combat Evolved; it was, however, made available in multiplayer mode for the PC version. In the PC version, it is a battery operated weapon, and can fire a total of 28 rounds, five rounds each before overheating, from its 100 battery unit charge. The weapon's metal plating is purple with a gray barrel.

File:1207426059 CANNON.JPG

A Halo 2 era Fuel Rod Gun.

Changes from Halo: Combat Evolved to Halo 2

The Fuel Rod Gun has been redesigned and now has a golden exterior, instead of a purple.
The Fuel Rod Gun now fires five rounds from a magazine, rather than a battery.
The projectiles arc much less, making the weapon function less like a mortar.
There is a new sound effect for the Fuel Rod Gun -it sounds less powerful, featuring more of a 'thumping' effect.
The player is now able to wield the Fuel Rod Gun in campaign, but it is not available in multiplayer due to gameplay reasons.
The melee attack animation was changed.

A Fuel Rod Gun in Halo 3.

Changes from Halo 2 to Halo 3

The textures of the Fuel Rod Gun have been updated, while keeping the Halo 2 design.
The blasts have been weakened to 65% of their previous strength, to compensate for the cannon's large number of rounds per magazine.
The color of the shots have changed to darker green.
Projectiles are affected by gravity at a much higher degree.
The sound effects have once again been updated to give the Fuel Rod Gun a deeper sound.

Changes from Halo 3 to Halo: Reach

The weapon's shape has been redesigned, sporting a smoother, more rounded appearance. Its coloration remains the same. It bears a slight resemblance to the Covenant plasma launcher.
The explosion from its rounds is more detailed, and with higher contrast to surroundings.
It now has a small thermal sight attached to the body, similar to some other weapons like the Spartan Laser and the Focus Rifle.

Changes from Halo: Reach to Halo 4

The firing sound is deeper.
The aiming reticule has been changed to a circular shape.
The projectiles are more solid and move faster.

Tactics

The fuel rod gun is best used against armor at medium range and against enemy positions and gun emplacements at long range.

Campaign

The fuel rod gun in Halo 2 generally is rarely seen, thus you will not be able to use it often, an exception being on the Arbiter level where a multitude of Heretic Grunts use it against you when you are flying in a Banshee.
In Halo 3, the fuel rod gun appears far more frequently. The best thing to do with it is to give it to a marine, who then rides in the passenger seat of your vehicle. Marines can also lock on targets with fuel rod gun, even though the player cannot.

Multiplayer

In Halo PC, the fuel rod gun is best used as a mortar to bombard the enemy base. It has an advantage of being able to hit enemies that are in cover and over hills, a feature otherwise only possible through the use of grenades. If the wielder uses it against vehicles, correct lead is essential. In Halo 2, the fuel rod gun does not appear in multiplayer, nor does in Halo 3 - however, it can be added through Forge.
Being an effective suppression weapon, one tactic in multiplayer Capture the Flag is to bombard the enemy base from afar with a fuel rod gun. Furthermore, the gunner can fire from a position obscured from enemy view, owing to the indirect-fire properties of the fuel rod gun. Since the view of the targeted area is mutually obscured from the gunner's position (due to having to compensate for the arc and having to aim high), such is unlikely to kill a player, but it is intended to at least deal cover fire for an assault on the flag, and most likely to inflict damage on the flag carrier. If multiple players carrying fuel rod guns bombarding a base with the aforementioned technique, it is quite devastating. Note that the fuel rod gun's splash damage is similar to that of the rocket launcher. If fired at very close range, the projectile will harm the player slightly.

UNSC remarks

“Those things are scary as hell. Ya hear that weird “whump” sound and even if ya see it comin' you're transfixed—these big green blobs flying at you throwin’ off sparks!”
“It’s so weird. I don’t know who first called it a fuel rod gun, but it’s kinda funny. I suppose the projectile is reminiscent of how you might expect to see a nuclear fuel rod depicted in a GA cartoon—all glowing green and throwing off sparks.”
“They’re pretty tricky to handle—first off you gotta get over the fact that there is this glowing, green explosive whatever right next to your head; and it’s not like you can requisition any more ammo for the damn thing—but you can lay down a whole lotta hurt in a very short amount of time I’ll tell you that.”
“The Type-33s have more in common with the ballistic weapon on the Banshee than it does with the weapon that the Hunters carry around—well, not carry around, but you know what I mean.”
“I catch a glimpse of green out of the corner of my eye and then there’s this huge “whoomf” and the ‘Hog goes end over end burning with Gaz still at the wheel. I was riding shotty with the M41 so I just unlatched and pushed off when we started going up into the air and there went the ‘Hog and Gaz and all our gear cart-wheeling into the ravine.”
“No sooner had I put the Grunt down than Fisk has got a hold of that bad boy and dumps the whole clip into the column—stickies and everything just cooking off—secondaries like mad! Fisk was a crazy bastard he was—wish he was still with us.”

Trivia

The fuel rod gun's design in Halo 2 is very similar to the ones shown in Pre-Xbox Halo.
The fuel rod gun is the only weapon in the trilogy which has a separate animation and timer when throwing a grenade; there is approximately a 0.5 second longer delay before you throw the grenade.
When the player gives a fuel rod gun to a marine, their animation is the same as if they were holding a rocket launcher; their left hand is at an angle, just like when they hold a rocket launcher.
In Halo PC multiplayer, the weapon's barrel retracts into the weapon when fired. Whether this is the firing mechanism or a recoil compensator is unknown, but the weapon has very little recoil on the hands of the player character, supporting the latter.
The fuel rod gun was originally meant to be a grenade launcher, but it was changed to a Covenant rocket launcher. It can be viewed on this video.
In post-Carnage reports in Halo: Reach it is mistakenly referred to as the Fuel Rod Cannon. This mistake is also in Halo 2, Halo 3: ODST, and Halo 4, being referred to in Campaign and multiplayer as the "fuel rod cannon".

Gallery

HUD Icon of the Fuel Rod Gun in Halo 4.
Reference model sheet of the Fuel Rod Gun in Halo 4.
Render of the Fuel Rod Gun's scope zoom function in Halo 4.
A turnaround reference of the Type-33 as it appears in Halo:Reach.
A Halo: Combat Evolved-era fuel rod gun with a yellow color.
A violet-colored Fuel Rod Gun from Halo: Combat Evolved.
A Special Operations Unggoy with a fuel rod gun in Halo: Combat Evolved.
The Fuel Rod Gun from a first-person perspective in Halo 3.
First-person view of the Fuel Rod Gun in Halo 4.
A Sangheili wielding and firing a Fuel Rod Gun against Yanme'e drones in Halo 3.
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A Sangheili with a fuel rod gun.
A Spartan holding a Fuel Rod Gun in Halo: Combat Evolved.
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A Spartan with a fuel rod gun in Halo PC Multiplayer.
From a Spartan's point of view in the PC version of Halo: Combat Evolved.
The Fuel Rod Gun overheating in Halo: Combat Evolved PC.
A fuel rod that has not yet been activated.
Another close up of a non-activated fuel rod.
A fuel rod in mid-flight.
A render of a fuel rod gun.
Side view of the Fuel Rod Gun from Halo: Reach.
An in-game profile view of the Fuel Rod Gun from Halo 2.
An in-game profile view of the Fuel Rod Gun from Halo 3.
An in-game profile view of the Fuel Rod Gun from Halo: Reach.
An Unggoy Heavy from Halo: Reach wielding a fuel rod gun.
A profile and three-quarter render of the Fuel Rod Gun from Halo: Reach.
An angled view of the Fuel Rod Gun from the Halo: Reach Beta.
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The Fuel Rod Gun as seen in Halo Legends: Homecoming.
An empty Type-33 LAAW.
A Fuel Rod Gun's ammo cartridge in Halo 4.