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Sniper Rifle System 99C-S2 Anti-Matériel

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Were you looking for the SRS99 AM, used in Halo: Reach, the SRS99C-S2 AMB, used in Halo 2, the SRS99D-S2 AM, used in Halo 3, or the SRS99-S5 AM, used in Halo 4?

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S2 AM Sniper Rifle
Sniper Rifle System 99C-Series 2 Anti-Matériel
Production information


Misriah Armory


SRS99C-S2 Anti-Matériel


Sniper Rifle

Technical specifications



  • Length: 162.5 cm (5 ft 5 in)[1]

Damage Per Hit

Very High

Magazine Size

4 rounds

Maximum Ammunition

28 rounds or 7 magazines

Fire Mode


Ammunition Type

14.5x114mm APFSDS rounds and other types of ammo.



Rate of Fire

Average, 2 rounds per second




2300 Meters



Type-50 Sniper Rifle System, Type-52 Special Applications Rifle



United Nations Space Command

[Source]   [Talk]

The Sniper Rifle System 99C-S2 Anti-Matériel (abbreviated to SRS99C-S2 AM), otherwise known as the SRS99C-S2 AM Sniper Rifle is a United Nations Space Command firearm usable in Halo: Combat Evolved and Halo Wars.

Design DetailsEdit

The SRS99C is the primary Sniper rifle used by UNSC and is featured in Halo: Combat Evolved and Halo Wars. It is, alongside its Covenant counterpart the Particle Beam Rifle, the most accurate and arguably the most powerful small-arms weapon in both arsenals. It contains a Night Vision Scope for night time accessibility. It is modular, with the scope, stock, barrel and firing mechanism capable of being swapped to match a mission profile.[2]


Main article: 14.5x114mm APFSDS

The Sniper Rifle has one of the most advanced ammunition types in the game. It uses 14.5x114mm Armour-Piercing Fin-Stabilised Discarding Sabot rounds which are large in both length and diameter and are equipped with four symmetrical fins spaced equidistantly around the base of the projectile, stabilizing its trajectory to results of amazing accuracy, with a hit ratio of 97.3%. These sabots are used to fill in the gap in the barrel to make a plug and are forced off of the projectile by air resistance before entering the actual target, their job having been completed.

The rounds are described as being "made of very hard metal", with the core probably composed of tungsten or depleted uranium, like most anti-matériel ammunition today. The APFSDS round is an anti-matériel munition, meaning that it is specifically designed for use against military equipment rather than against other combatants. It performs rather poorly in this role, as rounds fired at vehicles and equipment will do no damage or ricochet. This is probably due to the game engine loading vehicles and equipment as 'solid'. The round is best used on other combatants depending on their combat system. The APFSDS rounds fired by the Sniper Rifle leave behind a noticeable white vapor trail that can reveal the position of the sniper, however they can be used as an aiming aid for the sniper himself.

It should be noted that in Eric Nylund's novels the rifle is not limited to a four round magazine size. The reason for this in the games is to ensure balanced game play. Twenty-eight rounds total (four rounds per magazine) in Halo: Combat Evolved, twenty-four rounds total (four rounds per magazine) in Halo 2 and Halo 3. However, in the Halo: CE level Truth and Reconciliation you start with a Sniper Rifle and a 68 round combat load. However, you cannot take ammo packs lying around as long as you have more than 24 shots left. Once below that number, you can only go up to 24 rounds.


The SRS99C-S2 AM is designed to be used at medium to long ranges and is equipped with an electronic scope for precisely this purpose. It has two variants - one has a 2x and 8x zoom. In The Xbox version of Halo: Combat Evolved the scope is incorrectly stated to have 10x zoom, though the weapon code (observed through hacking) states only 2x and 8x zoom, this mistake was fixed for the PC version. The PC version has 2x and 8x, and the Halo 2 version has 5x and 10x zoom. It is tremendously useful in its designated role, considering its extraordinary range, surpassing any other weapon of comparable size, and its incredible stopping power even against body armor and Covenant energy shields.

By far, its most useful application in Campaign mode is taking out the higher-ranking enemies in a group to destabilize their squad's discipline and morale. A single headshot will kill any Covenant infantry except Zealots, Major Domo Elites, and Ultra Elites. Hunters fall from one shot to their unarmored back or neck. When playing in the highest difficulty, Legendary, the Major Domo Elites will take two shots to the head and the Zealots will take three. Turning on Night Vision is done by using the flash light button while zoomed in.

When playing in Multiplayer, some players use the Sniper Rifle to great effect when camping. For example, skilled users may crouch inside a confined hallway and fire without the use of the scope from close range, resulting in many instant kills. In competitive games between two organized teams, both will always have a sniper. Despite its obvious role, the Sniper Rifle is can be highly effective at close range in the hands of a skilled operator, as the highly damaging round is just as powerful at close range; a single round followed by a melee strike will kill an enemy almost instantly.


The Sniper Rifle's projectile has a slight travel time at great distances, and requires practice to use effectively at range. When used in close quarters, its precision nature, slow reload time, small magazine capacity, heavy recoil, and slow rate-of-fire leave absolutely no room for error. A small combat load and the relative scarcity of ammunition available for the weapon also make it bad practice to expend ammunition on smaller, less threatening combatants, such as Grunts. It is also extremely ineffective against most forms of Flood, unless the player can land a round into the embedded infection form, or shoot a combat form's limbs off at a distance.

The projectile leaves a vapour trail that can be traced back to the sniper's location, revealing the operator's hiding spot or drawing hostile fire. Also, the weapon is fatally ineffective against even light-skinned and unarmored vehicles (belying its designation as an anti-matériel weapon) unless a shot can be taken on the vehicle's occupants, except for Wraiths and Banshees (Banshees pilots are obviously hard to snipe, and even if you do get the opportunity to snipe the pilot, the Banshee would fly away before you could get either a clear shot or a direct hit; the Banshee pilot is invulnerable to sniper rounds anyway). Skilled players, however, can use the sniper to take out most of the banshee pilot's health/shield at long range, then with a pistol or shotgun, finish them off easily. This is especially hard in Halo: Combat Evolved due to the lag time in bullets.


The Sniper Rifle appears to be heavily inspired by (if not directly copied from) the South African NTW-20, (most notably the Denel NTW-20), and the Barrett M107 SASR. Many of the features present in the Halo version are included in both weapons, such as the recoil-dampening piston, the general appearance of the receiver, the magazine placement, muzzle brake and many other attributes. In addition, the round (14.5x114mm) is an actual rifle cartridge, developed by the Russian Army for anti-tank rifles, heavy machine guns, and sniper rifles. However, the real 14.5 mm round has a standard design, whereas the round used in the Halo Universe is an APFSDS round (armor-piercing, fin-stabilized, discarding sabot).

The influence for a muzzle brake at the end of the SRS 99C-S2 AM comes from many different current sniper rifles, namely the Barrett M107 SASR. However on the Barrett M107, the gasses are forced out of the muzzle brake diagonally away from the barrel and towards the shooter. This helps to significantly dampen the recoil. The SRS 99C-S2 AM's muzzle brake is shaped so that the expanding gasses are forced out the muzzle brake and away from the shooter. This would slow the round's muzzle velocity, and significantly increase the recoil by around 40%.


The SRS99C-S2 AM Sniper Rifle that appeared in Halo: CE had a digital radar-like view which was green and had 4 knobs below the scope. It also had a longer shoulder guard. When using the telescopic sight, the weapon gives the target's range and elevation as well.


Main article: Sniper Rifle System 99C-S2 Anti-Matériel B

The SRS99C-S2 AMB Sniper Rifle is an upgrade of the SRS99C-S2 AM Sniper Rifle found and is usable in Halo 2. The AMB variant includes a different scope and a better designed grip for stability and accuracy.


Main article: Sniping

The Sniper Rifle is extremely powerful, but with a small combat load, it is not good practice to use this weapon against weaker enemies. However, the Sniper's penetration capabilities and superb, long range accuracy makes it excellent for killing higher-ranking enemies at long range, which, in turn, disorganizes and demoralizes the enemy troops, making combat against a large ground force much easier.

Campaign RecommendationsEdit

Take cover behind any rock or building (if any). Easily take aim and make sure you fire before the hostile sees you. Do not waste rounds on minor threats like Unggoy or shield bearing Kig-Yar since ammo is usually scarce and you can kill them easily with other weapons too. Even from a distance, pistols can usually take care of them in one headshot.

A good setup in Covenant-filled levels is to save the sniper for longer range and much more difficult foes, such as Elites. Secondary weapon choice can be anything you feel is good to take out minor foes like Jackals and Grunts. The M6D pistol is excellent secondary weapon, because of the accuracy, stopping power and zoom function. This pistol can negate the need for the Sniper Rifle for mid-ranges, thus saving its scarce ammo.

In Flood-filled levels, the Sniper Rifle should be ignored, as the rounds pass through combat and carrier forms, doing little to no damage at all. However, in levels that include both enemies, one could use the Sniper Rifle against Covenant enemies and the M90 Shotgun to maximise damage.

When combined with a Plasma Pistol, the Sniper Rifle can be used to form a special kind of noob combo, with the overcharged Pistol depriving enemies of their shields and the Sniper Rifle dealing a fatal body or headshot. This variant is more powerful than the combination of a Plasma Pistol and an M6 Pistol, however it is more advisable to replace it with the M6 when available, for the sniper rifle is too valuable to use it against weaker enemies, has a smaller magazine and overall ammo capacity and a slower rate of fire than the M6.

Multiplayer RecommendationsEdit

In Halo: CE, effective use of the 99C-S2 in multiplayer takes a lot of practice. It is necessary to aim in front of a target to account for server lag; how far one should aim in front depends on their angle onto the target and the amount of lag in the server. Targets are shot easiest when they are head on, moving directly toward you.

A head-shot will kill an enemy outright, regardless of shield. Night vision is best used in dark areas but is useless in maps that have high color contrast. Good secondary weapons include the M6D Pistol which, when shot accurately dispose of an enemy in 3 shots regardless of shield. Its 2x zoom make it the perfect partner for the sniper rifle.

Use natural formations and buildings to snipe from, but move constantly and erratically (including jumping and crouching) to lower the possibility of counter-sniping. The fact that sniper rifle bullets leave a trail is the weapons largest downside (apart from the small magazine capacity). It exposes one's position and alerts the enemy easily; constant change of position is advised to confuse the enemy. Find something to hide behind while you reload, and reload when not in a firefight. Good snipers cover teammates and kill anyone who is chasing someone on their team.

Sniping is easier if you turn down your look sensitivity. Unfortunately, this makes shotgun and other CQC weapons harder to use in a chaotic environment.


  • Apart from the Shotgun, the Sniper Rifle is the only weapon in Halo: Combat Evolved to make a special animation when a magazine is completely exhausted. If the player shoots all four bullets, the ending of the animation will result in cocking the Sniper Rifle
  • Currently the term "APFSDS" is reserved for large tank mounted weapons. In small arms such as the Halo sniper rifles it is called a Flechette.
  • Linda-058 changes the sniper's ammo size to .450-caliber in Halo: The Fall of Reach. In fact, she shoots more rounds than simply four bullets at a time.
  • In the novel Halo: Ghosts of Onyx, the Spartan-IIs and IIIs utilize grapple rounds in place of standard ammunition. These rounds are described as harpoon-like shafts attached to braided monoline rope which is coiled in a bag.
  • "Robert McLees is definitely the go-to guy for the gun stuff," says William O' Brien, part of Halo 2's animation team, "I wanted to come up with an animation for the sniper scope, an 'idle cycle'. If you activate the scope, and then sit too long without doing anything, the animation would kick in periodically, just to keep things interesting... Simple, right...? He replied, 'No way. If you adjust your scope in the field, you're dead. Snipers don't do that.' That's how detailed his weapon designs are -- not just guns, but how they work, and how a sniper would fire them. Amazing".
  • In Halo: CE, enemy AIs do not acknowledge the Sniper Rifle's gunshot if they do not see you, despite its loud crack in close-medium quarters. If you down an enemy with the Sniper Rifle, some will note the fallen comrade, but will not search for you as they would if you fired with any other weapon.
  • One possible reason that the Halo: CE Sniper Rifle has a night-vision setting is that, like the rest of the equipment available onboard, the UNSC Pillar of Autumn's Sniper Rifles were upgraded for the Spartans' mission. Also, Linda-058 needed specialized equipment, so the stock of the Sniper Rifles may have been upgraded for her.
  • In the Xbox version of Halo: Combat Evolved the maximum zoom for the sniper is 10x, but in the PC version it is only 8x. This is incorrect, the Xbox version of Halo: CE does support 8x zoom and not 10x. Through hacking the weapons code it can be observed, and altered.
  • This version of the Sniper Rifle is the only one where the user cycles the bolt after a new magazine is inserted.
  • It is interesting to note that the 99C-S2 in Halo: CE render does not have a trigger, or any other way of firing the Rifle, not does the MA5B.
  • The Sniper Rifle's night vision mode can be used to provide a clearer image of an enemy in active camouflage.
  • Although the Sniper Rifle has bi-pods, it is never seen to be used in gameplay, nor any cutscenes.
  • Even though as mentioned as having it and visually presented the 99C-S2's recoil has no effect on accuracy. Allowing follow-up shots easily. This is best seen whilst scoped.




  1. Halo: CEA Kinect Voice Library
  2. Halo: The Fall of Reach, page 80

See alsoEdit

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