Type-2 Antipersonnel Fragmentation grenade

The Type-2 Antipersonnel Fragmentation Grenade, more commonly known as the Spike Grenade, is a Jiralhanae (Brute) manufactured grenade.

Introduction
The Spike Grenade is believed to be the Covenant Loyalist counterpart to the Covenant Separatist Plasma Grenade. The Spike Grenade is most notable for its adhesive properties, similar to the Plasma Grenade, but with a different trajectory. This weapon uses its spikes to stick to the target and once attached, it will detonate, turning the spikes into lethal projectiles.



Aesthetics
The Spike Grenade, is similar to the Model 24 Stielhandgranate grenade used by Germany during World War I and World War II, as well as by Imperial Japan in the latter, essentially an ovular head with a shaft protruding from its bottom; however, it derives its namesake from the notable spikes present on the grenade (it has four big curved spikes on top of the grenade and twelve smaller ones around the shaft of the grenade) and the shrapnel it expels.

Operation
Its utilization against Brutes is especially easy, primarily when the Catch Skull is active in Campaign. When the Brutes step forward to throw a grenade, the player should also take a step forward with a Spike Grenade in-hand, aiming at the chest of the Brute. Once they start their "throw sequence" they cannot dodge your grenade. With the Catch Skull on, you will never run out of grenades, so it is easy to stick no fewer than 30 Brutes in a campaign level (assuming there are that many Brutes in the enemy listing).

Once thrown, the spike grenade will implant itself upon the first object it encounters by goring its spike into the object, whether they be personnel, vehicles, walls, energy shields, or otherwise.It has a definite kill radius of 3 meters and a casualty radius of 11 meters it is less powerful than most grenades Strangely, even though it will stick to Mark VI MJOLNIR sheilds, and having amazing 'stickyness' it bounces off Jackal Gauntlet shields, depolyable covers and Brute Chieftain's armor. After a short delay, it will detonate into a conical blast of spikes (amidst red-blue roiling gas and spikes), perpendicular to the surface it sticks to, similar in functionality to the Claymore Mine. The spikes ricochet off of hard surfaces in confined quarters, making the spike grenade especially useful in CQB situations. The heated spikes that shoot out can kill an opponent whether or not they were near the original explosion. It is a great weapon to set up traps with, especially while being pursued, it can be tossed at a wall, and then as you round a corner the blast will kill whoever was following. The projected spikes can travel between 1 meter and 10 meters in the direction they were projected. And while it cannot stick to Brute Chieftains, it will kill them if they are close enough to the detonation. The spike grenade will kill most opponents and vehicles when it sticks to them but won't usually if it lands near them but it will deplete their shields long enough to go in for the kill.

It has been observed and experimented that the Spike Grenade is able to implant itself into other grenades that have been thrown. Also, these grenades are very good for taking out groups of enemies that are relatively close-knit together. It is also relatively useful in close range situations. If you can stick one on a player, you can run knowing that even if the other player catches up, you probably won't get hurt, seeing as the grenade is most powerful in the small area around where it detonates.

As with the other grenade types, players are only allowed to carry two grenades of each type. This is to help with balance issues. Spike Grenades seem to be related to the Spiker, as the Spiker shoots what seem to be the same spikes that the Spike Grenade bursts out of in all directions.

UNSC Remarks
“The casing is constructed of an unusual porous metallic compound. Shrapnel from the Spike Grenade reaches a temperature of approximately 270 to 315ºC, around 530ºF, and retains that heat for upwards of seven seconds, by design.”

“It’s not as heavy as it looks, but it’s still like trying to throw a softball bat.”

“Those things ain’t made to wound anyone – to make you use up time and resources treating casualties. They were designed to make you die screaming.”

“It’s like a Shotgun that shoots flaming chainsaws at mike foxtrots – except you throw it.”

Trivia

 * This grenade, shares the Stick It Medal/Grenade Stick with the Plasma Grenade. This is because it has the ability to attach itself to an enemy as well as different kinds of terrain and vehicles.
 * The Spike Grenade is similar in appearance, to a medieval mace.
 * Physical damage from the impact of the somewhat heavy, spiked grenade might be considered quite high, explosive damage aside. It is possible that one could use the grenade as a melee weapon in an emergency, functioning as a spiked club or mace.
 * During the pre-game announcements and Beta, the Spike Grenade, was supposed to make a whooping noise when thrown, and be able to stick to shielding such as Jackal shields and Bubble shields. It no longer does this due to the fact that it is just a straightforward throw with no presumptuous heaving.
 * Although the whining sound was removed from the final version of the game, you can still hear the knife sound the shrapnel makes as it lands on an opponent.
 * It will stick to certain shield doors, namely the ones on Snowbound and Epitaph. Try throwing it at a door and run through as you are being pursued.
 * Unlike the Plasma Grenade, the Spike's splash damage is relatively low when it sticks into a player, and so it is a better alternative in CQB situations, as you are more likely to live from the explosion.
 * It can fully destroy all vehicles (except tanks) and their occupants upon a stick.
 * It is incredibly useful for taking out foes hiding inside Bubble Shields. One only has to step in, throw a Spike Grenade at the far wall, and step out and watch as it falls to the ground, and the erupting spikes (confined as they are) bounce everywhere within the Bubble, immediately shredding anyone still inside the shield.
 * If you try to grenade jump using a Spike grenade, you will die instantly.
 * When sticking to anything, the spike grenade will always have the top in contact with the material.
 * If a Spike Grenade is ever stuck to a chain-link fence (High Ground or The Pit), then the spikes released will actually spread in a spherical pattern, straight through the fence. Such a tactic would be useful if one was in a hidden position and a group of enemies ran through or past said fence.
 * Chronologically, this grenade was first seen on Harvest when Byrne was chased into the control room of Harvest's AI Mack.
 * The grenade is extremely useful, when thrown at corners where the damage inflicted would be toward the facing walls. The spikes ejected will reflect off of walls on a shallow angle and will be focused if thrown into a corner.
 * The Spike Grenades design (crude and primitive) exemplifies Brute society compared to that of the rest of the Covenant's.
 * The Halo 3 Official Guide incorrectly claims that Spike Grenades will stick to Bubble Shields and Jackal Shields. It does not do this. Instead, it rebounds much faster than thrown.
 * Unlike the Plasma Grenade, Spike Grenades will stick to about any surface.
 * The shot spikes bounce three times in a corner, which can be used to hurt or kill a hiding enemy.
 * If a Spike Grenade is stuck to a player or an object, such as a Crate, the explosion will do very little damage to other players or objects. This also applies to the large, unmovable crates in Foundry, thus the Spike Grenade shouldn't be used in Foundry as the spikes won't shoot out like from normal walls.
 * The spike grenade made an appearance in the video Halo: Landfall, as a Marine grabs a Spike Grenade stuck into a nearby wall and hurls it into the air, destroying a Banshee.
 * In the movie The Fifth Element, Bruce Willis sticks a bomb that looks like the Spike Grenade to a desk and it explodes killing a lot of enemies.
 * The Spike Grenade, shares a striking resemblance to the WW2 grenade "Potato Masher".
 * In rare occasions, the grenade will bounce off of players, and in other instances the spike shrapnel 'homes' in on any nearby players.
 * This grenade has many comical sticks, such as sticking to someone's groin.
 * The spikes it emits when it explodes are the same from a Spiker.