Halo UNSC Explosives

## **C-7**

C-7 Foaming Spray is a highly explosive compound that is used in demolitions by UNSC forces. It is comprised of various chemicals that react to a signal electrical current shock sent through a detonation switch. It is liquid in vacuum, but once contact with a hard surface and oxygen occurs, it becomes a foaming, semi-solid adhesive resin.

## **C-12**

The UNSC C-12 Shaped-charges or C-12 SCs are used mainly for heavy demolitions and can also be used as weapons. This compound is extremely dangerous and very volatile. A small 4x4x4 inch cube alone can level a five story building in seconds. It's solid, but malleable enough where it can be shaped or bent into different forms to stick to surfaces better and fit into tight spots and is detonated with electric-shock detonator sticks or remote detonators.

C-12 is also hefted in medium-sized backpacks called "Damage Packs" or "Blow Packs". Two Damage Packs contain enough C-12 to blow through three meters of UNSC standard armor plating.

## **Fougasse**

Fougasse is an improvised weapon that generally takes the appearance of a barrel or tube that is buried about a foot beneath the ground. It has grenades or some other form of propellant in the bottom of it and can be filled with Napalm ("Fire" Fougasses) or spent shell casings and various bits of metal ("Shrapnel" Fougasses). They can be remote detonated, sending fire and shrapnel upwards, cutting down anything above them for up to several meters. Normally they are used to destroy ground targets, but during an engagement on the surface of Jericho VII, SPARTAN-II Blue Team led by John-117 used ten Fougasses to destroy five Covenant Banshees. John-117 activated it when the fliers were still close to the ground on a strafing run so the blast would hit them perfectly.

## **M168**

The M168 Demolition Charge is a United Nations Space Command explosive device.

The M168 Demolition Device is an explosive ordnance that is used to destroy or clear large structures. Because of the nature of the device, it is more commonly employed as a device to destroy buildings, or other structures, than an explosive used to destroy the enemy itself.

The M168 has three vital components to it. The first is the explosives pack itself, which can be attached to any surface by using an adhesive strip on the back of the pack. The second component is the charge. The charge itself is also an explosive pack, the only major difference is that the front panel of the charge has an arming handle and a keypad. From here, the detonation code and countdown timer can be set and authorized. Once the code has been verified, the charging handle can then be rotated to its "armed" position. Once in the armed position, an arming signal is sent to the other explosives within range. The third component is the wireless card, which will locate and connect to a terminal or heads up display and wait to receive the detonation signal.

## **M9 HEDP**

The M9 High-Explosive Dual-Purpose grenade (abbreviated M9 HE-DP grenade), also known as the Fragmentation grenade, shortened Frag grenade, or simply Frag, is a UNSC issued grenade that functions in a manner very similar to contemporary hand grenades.

HE-DP stands for High-Explosive Dual-Purpose. This designation means that it is designed to be effective against infantry and lightly armored vehicles. AP FRAG can be viewed on the Halo: Combat Evolved M9's olive casing. AP designates "anti-personnel", indicating the weapon's intended use.

The grenade has a hard metal casing, with a frangible design meant to break apart into small, regular shards. This surface creates consistent, reliable fragmentation patterns for the grenade, rather than randomly rupturing along metallurgical faults. The grid-shaped casing houses a charge of high-explosive fitted with a mechanical primer. When the charge detonates, it shatters the grenade's casing, sending shrapnel flying away at high velocity.

## **Napalm Grenade**

The Napalm grenade was a type of incendiary grenade used by UNSC forces during 2552. They were used by Colonel James Ackerson in testing the MJOLNIR Mark V armor on Reach, hidden among the Pillars of Loki and used in conjunction with Sonic grenades.

Napalm was developed by the United States of America during World War II. It is a mixture of chemicals which, when mixed with gasoline and compressed, makes a sticky incendiary gel. The name is a combination of its original ingredient's names: aluminum salts of naphthenic and palmitic acids. The name has since evolved to mean any substance that causes intense fires upon ignition.

**Game Notes**:

* Targets on fire take an additional 3D Damage per round or until extinguished.
* Napalm Grenades burn for 5D rounds.

## **Satchel Charge**

The satchel charge is a United Nations Space Command ground explosive.

Marines use satchel charges to clear large, reinforced doors, or obstacles out of the way, although they are also often used as offensive weapons to dislodge dug-in enemy troops.

SPARTAN-IIs Vinh-030 and Isaac-039 used satchel charges during the Fall of Reach to hold back the Covenant entering ONI's CASTLE Base, giving the others time to retreat further into the base. However, they disappeared in the blast and were presumed dead.

## **Smoke Grenade**

Smoke-producing flares are used for a variety and diversity of reasons by the UNSC. Different reasons appear to have different colors of smoke attached to them.

**Game Notes**:

* **Signal Flare**: "Smokers" are used to alert allies of a friendly position. They utilize thick, green or white smoke.
* **Smoke Canister**: These are used to signal for pickup after a mission, or a request for an equipment drop, or even a need for emergency evacuation. They create thick, blue or red smoke. These are also referred to as "smoke" grenades.

## **Thermite-Carbon Cord**

Thermite-Carbon Cord, or T-C-C, is a type of incendiary device used by the UNSC. It consists of a long wire of a thermite-carbon alloy, with a charge used to ignite it. Once the charge is activated, a large amount of heat energy is released and the subsequent burst of heat is capable of enormous amounts of anti-material damage melting through solid metal.

The SPARTAN-III Beta Company used Thermite-Carbon Cords during Operation: TORPEDO. Tom-B292 used it to destroy the dump valve to a reactor of a Covenant ship yard.

**Game Notes**:

* Targets on fire take an additional 3D Damage (Speeder Scale) per round or until extinguished.
* Thermite-Carbon Cord burn for 1D rounds.

## **Thermite Grenade**

Thermite grenades are a type of explosive incendiary ordnance used by the UNSC. The flames from the thermite grenade can burn underwater.

Thermite grenades rely on a chemical process between metal powders and oxides to create high temperatures, with no explosion. Commonly, Aluminum and Iron (III) Oxide are used in the reaction. Thermite can reach temperatures upwards of 2500 °C (4500 °F), and is often used to melt through a wide range of things extremely quickly. However, thermite is rarely used for anti-infantry roles, and is more practical to use in anti-material roles due to quickly disabling components with few ways of interfering with the reaction.

Thermite shaped charges are also used to quickly gain entrance to locked areas.

**Game Notes**:

* Targets on fire take an additional 3D Damage (Speeder Scale) per round or until extinguished.
* Thermite Grenades burn for 1D rounds.

## **Flashbang Grenade**

A Flashbang grenade (also called a Stun grenade) is a special type of grenade used by the UNSC. Unlike Fragmentation grenades, these grenades are not intended for lethal use. Flashbangs use chemical reactions to produce an extremely bright flash of light and a very loud concussion blast when deployed, stunning targets, but doing very little physical damage to them. The primary purpose of a stun grenade is to temporarily blind and deafen the enemy. If the victim directly observes the flash, a still frame of what is observed by the victim will be seen for up to ten seconds, at which point their eyes will have returned to their unstimulated state.

Due to widespread usage within 21st Century armed forces, it has likely been used since before the UNSC's conception, though the earliest recorded use of it was 2531, as seen by its use by Hellbringers in Halo Wars. The Flashbang and Stun grenades' use in combat scenarios has not been overlooked, serving to confuse, disorient, or momentarily distract a potential threat for five to ten seconds.

## **Type 18**

The Type 18 Magnetic/Bayonet-style Claymore is an explosive device used by the UNSC.

The only known use of this weapon was during the Battle of Algolis. It was used by a Marine with the call sign Ghost, who was using a protoype power armor. Ghost used one of these Claymores to destroy a Wraith, planting it on the tank's less armored rear section.

## **Source**

* Halo Wiki: C-7 Foaming Explosive
* Halo Wiki: C-12 shaped charge
* Halo Wiki: Fougasse
* Halo Wiki: M168 Demolition Charge
* Halo Wiki: M9 High-Explosive Dual-Purpose grenade
* Halo Wiki: Napalm grenade
* Halo Wiki: Satchel charge
* Halo Wiki: Smoke grenade
* Halo Wiki: Thermite-Carbon Cord
* Halo Wiki: Thermite grenade
* Halo Wiki: Flashbang grenade
* Halo Wiki: Type 18 Magnetic/Bayonet-style Claymore
* thedemonapostle