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{{game|bo|mwii|wz2|mwiii|z|wzm}}
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{{For|a similarly named cut weapon|HK79}}
The '''[http://en.wikipedia.org/wiki/HK21 HK21]''' is a [[light machine gun]] featured in ''[[Call of Duty: Black Ops]]''.
+
The '''{{w|Heckler & Koch HK21|HK21}}''' is a [[light machine gun]] featured in ''[[Call of Duty: Black Ops]]'', ''[[Call of Duty: Modern Warfare II]]'' and ''[[Call of Duty: Modern Warfare III]]''.
   
 
==Call of Duty: Black Ops==
 
==Call of Duty: Black Ops==
 
{{Infobox/weapon
 
{{Infobox/weapon
 
|image = [[File:HK21 Menu Icon BO.png|256px]]
 
 
|image = [[File:menu mp weapons hk21.png|230px]]
 
 
|damage = 40 (MP)
 
|damage = 40 (MP)
|magazine = 30 Rounds (60 with [[Extended magazines|Ext. Mags]]), 125 rounds (Zombies)
+
|magazine = Standard: 30 rounds<br>[[Extended Mags|Drum Mag]]: 80 (SP), 60 (MP)<br>[[Zombies (Treyarch)|Zombies]]: 125 (150 [[Pack-a-Punch]]ed)
 
|tier = 12
 
|tier = 12
  +
|class = [[Light Machine Gun]]
|startammo = 90 (MP)
 
|maxammo = 240 (MP)
+
|startammo = 30+90 (MP)
  +
|maxammo = 360 (SP standard, 960 with Drum Mag), 240 (MP), 500 (Zombies)
|rof = 750
 
  +
|rof = 750 (SP & MP), 535 (Zombies)
|recoil = Moderate
 
  +
|range = Multiplayer<br>
  +
[[File:RangeLMGBO.png|160px]]
  +
|recoil = Moderate (SP)<br />Low (MP and Zombies)
  +
|center = 1700
 
|fire = Automatic
 
|fire = Automatic
 
|used = [[Soviet Armed Forces]], [[CIA]]
 
|used = [[Soviet Armed Forces]], [[CIA]]
|pickup = hud_hk21.png
+
|HUD= [[File:HK21 HUD BO.png]]
 
|mult = Head: 1.4, Body: 1, Limbs: 1
 
|mult = Head: 1.4, Body: 1, Limbs: 1
 
|level = 2
 
|level = 2
 
|cost = Default weapon
 
|cost = Default weapon
 
|reload = 3.75 loaded, 4.75 unloaded
 
|reload = 3.75 loaded, 4.75 unloaded
|pen = Moderate|zombiecost = 950(Mystery box)}}
+
|pen = Moderate
  +
|zombiecost = 950 (Mystery box)
  +
|console=<tt>hk21_sp</tt><br>
  +
<tt>hk21_extclip_sp</tt> (HK21 w/Drum Magazine)<br>
  +
<tt>hk21_zm</tt><br>
  +
<tt>hk21_upgraded_zm</tt> (H115 Oscillator)<br>
  +
<tt>hk21_mp</tt>}}
  +
{{quote|Seven hundred rounds, two minutes of continuous fire? I approve.|[[Robert McNamara]], when obtaining the weapon from the [[Mystery Box]] in [["Five"]].}}
 
===Campaign===
 
===Campaign===
The HK21 is the secondary starting weapon for [[Hudson]] on the level "[[Rebirth]]." It is very powerful and usually kills in one to two shots to the torso. It also has the ability to [[gib]] most enemies. It can also be found in other missions, such as "[[Numbers]]" and "[[WMD]]". Occasionally, it can be found with a Round Drum, which gives the player 80 rounds per drum. Though it is rare, it is a highly effective weapon if a Round Drum version is found.
+
The HK21 is the secondary starting weapon for [[Jason Hudson|Hudson]] on the level "[[Rebirth]]." It is very powerful and usually kills in one or two shots to the torso, and has the ability to [[gib]] most enemies. It can also be found in other missions, such as "[[Numbers]]" and "[[WMD (mission)|WMD]]". Rarely, it can be found with a [[Round Drum]], which gives the player 80 rounds per drum, making for a very effective weapon. In WMD, it can be picked up from dead Soviet soldiers
   
 
===Multiplayer===
 
===Multiplayer===
  +
The HK21 is unlocked at Level 2 to the player, as part of the default LMG class. It is also automatically unlocked in [[Create-a-Class]].
   
  +
The HK21 by default deals forty damage at all ranges, killing in three shots, or one shot at any range in [[Hardcore]]. The HK21 does 56 damage on a headshot at any range, allowing the HK21 to get a two shot kill at any range with two headshots, or dealing up to 96 damage on a headshot-bodyshot combination, which can kill mildly injured enemies. The HK21 has high [[Surface Penetration|penetration power]], allowing it to retain most of its damage when shooting through obstructions.
The HK21 is a fully automatic light machine gun with moderate recoil, moderate rate of fire and a 30 round magazine. It is available at Level 2 to the player, as part of the LMG default class.
 
   
  +
The HK21 fires fully automatically, with a rate of fire of 750 RPM.
The HK21 will kill in 3 shots at any range, or 2 if headshots are involved, and has medium recoil. This makes the HK21 extremely powerful at medium range. Long-range encounters can be dealt with by firing small bursts. However, pairing the HK21 with Extended mags and Scavenger Pro allows for an extremely effective tactic: Extended fire at long ranges coupled with the easily controllable recoil and the high power of the HK21 will allow the user mow down enemies at chokepoints allowing for easy containment of the enemy when securing objectives. The HK21 is tied with the [[Stoner63]] for the smallest capacity out of all the LMGs so the [[Extended Mags]] attachment is extremely useful, as it doubles the ammunition capacity to 60 rounds. The iron sights, while clear and open, can be difficult to use for some. For this reason, the [[Red Dot sight|Red Dot Sight]] or [[Reflex Sight]] is recommended.
 
   
  +
The HK21 has recoil values of 70 to the left, 70 to the right, 60 upwards, and 40 downwards. The HK21 has a centerspeed value of 1700.
Although the HK21 has very low movement speed, perks like [[Lightweight]] are not recommended. LMGs like the HK21 are better suited to large amounts of stationary fire, particularly when defending or supporting objectives. For this reason, [[Scavenger (perk)|Scavenger]] is recommended to keep supplied with ammo. [[Steady Aim]] benefits the HK21 as it improves its CQB capabilities. [[Sleight of Hand]] can also be very useful for this weapon, as it dramatically reduces the amount of time needed to reload, as well as improving [[ADS]] speed with the Pro version. [[Hardened]] or [[Warlord]] along with [[Extended Mags]] and a sight attachment can be more useful than [[Sleight of Hand]].
 
  +
  +
The HK21 restricts users to move at 87.5% of the base movement speed, or strafe at 40% of the base movement speed. The HK21 allows users to aim down the sights in 350 milliseconds. The HK21's hip-fire spread is average. The HK21's reload animation is 3.75 seconds long, or 4.75 seconds long on an empty magazine. In either case, the user can [[Reload Cancel]] after 2.9 seconds.
  +
  +
The HK21 has a magazine capacity of thirty rounds. The HK21 has a starting ammo loadout of 120 rounds.
  +
  +
The HK21 has the standard assortment of LMG attachments to choose from. All attachments work as expected on the HK21, with no signifciant difference in effect when said attachments are used on the HK21.
   
 
===Attachments===
 
===Attachments===
 
*[[Extended Mag|Extended Mag (Drum Mag)]]
*[[Infrared Scope]]
 
*[[Red Dot Sight]]
 
*[[Extended Mag|Extended Mag (Drum Mag) ]]
 
 
*[[ACOG Scope]]
 
*[[ACOG Scope]]
*[[Reflex|Reflex Sight]]
+
*[[Red Dot Sight]]
 
*[[Reflex Sight]]
 
*[[Infrared Scope]]
   
 
===Zombies===
 
===Zombies===
The HK21 can be found in the [[Nazi Zombies]] game mode and is only obtained from the [[Mystery Box]]. It starts with a magazine size of 125 rounds and with an extra 500 rounds. When [[Pack-A-Punched]], it becomes the '[[H115 Oscillator]]', also giving it a Drum Mag ([[Extended Mags]]). This increases the magazine size to 150 rounds with 750 extra rounds plus the usual upgrades.
+
The HK21 can be found in Zombies mode and can only be obtained from the [[Mystery Box]]. It starts with a magazine size of 125 rounds and with an extra 500 rounds. It has a reduced rate of fire from Multiplayer, firing at a measly 535 RPM, making it very unforgiving in this regard. However, the high amount of ammunition at disposal, and the low rate of fire, make reloads few and far in between. That being said, however, reloads can be painfully long, usually tempting the player to buy the expensive [[Speed Cola]]. [[Double Tap Root Beer]] is extremely useful on this weapon, as the large magazine will still take a long time to deplete, despite the great increase in the rate of fire. However, [[Double Tap Root Beer]] is absent on [[Ascension]]. The HK21 is often viewed as a "Love it or hate it" style weapon. Some players will love the high magazine size and power; however, others can simply detest the handling of the weapon, particularly the ADS time, reload times, and movement speeds, alongside the extremely slow rate of fire.
   
  +
When [[Pack-a-Punch Machine|Pack-a-Punched]], it becomes the "'''H115 Oscillator'''". The magazine capacity is increased to 150 rounds, and the maximum reserve ammunition is increased substantially to 750 rounds, effectively leaving 900 rounds to be used as soon as it's obtained. The damage gets an increase as well. However, the maximum bullet damage of 210 is definitely less forgiving than other weapons, coupled with the excruciatingly low rate of fire; however, the high amount of ammunition offsets this.
Due to this weapon's high power and large magazine, it is arguably one of the best non-[[Wonder Weapons]] in [[Nazi Zombies|Zombies Mode]].
 
   
  +
In terms of performance, it is often compared to the [[RPK]], due to their extremely large magazine capacities, and LMG statistics. The RPK is generally better when damage is concerned, as the much healthier rate of fire will often prove to down zombies quicker than the HK21 is capable of. However, the HK21 has overall better ammo conservation, and it has a much larger reserve supply. However, both of these weapons have little ammo consumption concerns, barring when the RPK user is using Double Tap Root Beer. Generally, many players will prefer the RPK over the HK21, for the higher damage, in trade for less ammunition, which it packs plenty of.
The low rate of fire, very high magazine size and high reserve capacity makes ammo less of an issue for the HK21 than for other weapons. However, the very slow reload time makes [[Speed Cola]] useful when using this weapon. [[Double Tap Root Beer]] is also useful from rounds 18-20+ but the HK21 isn't as good as some may see it in Ascension because of the low fire rate and the removal of Double Tap Root Beer means the RPK, Galil and Commando are better options as they all have high ammo supply and higher rate of fire and in the case of the Galil and Commando: increased run speed. However this can be rectified for the HK21 by using Stamin-up. In Ascension, the HK21 can be viewed as a "love it or hate it" weapon. Some will love the high ammo, and others the good rate of fire and high movement speed.
 
  +
  +
====HK21 vs H115 Oscillator====
  +
{{PaPComparison
  +
|regname=HK21
  +
|papname=H115 Oscillator
  +
|regimage=[[File:HK21 BO.png|150px]]
  +
|papimage=[[File:H115 Oscillator.png|150px]]
  +
|regdamage=150-110
  +
|papdamage=210-150
  +
|regfire=Automatic
  +
|papfire=Automatic
  +
|regrof=535 RPM
  +
|paprof=535 RPM
  +
|regmag=125
  +
|papmag=150
  +
|regammo=500+125
  +
|papammo=750+150
  +
|regreload=3.75, 4.75 empty
  +
|papreload=3.75, 4.75 empty
  +
|regmobility=Low
  +
|papmobility=Low
  +
|extras=Higher damage, larger magazine, more ammo
  +
|papmultiplier = Head: x3<br>Chest: x1<br>Abdomen: x1
  +
|regmultiplier = Head: x3<br>Chest: x1<br>Abdomen: x1}}
   
 
===Gallery===
 
===Gallery===
''For Camouflage images, [[HK21/Camouflage|click here]].''
+
{{For|Attachment images|HK21/Attachments}}
  +
{{For|Camouflage images|HK21/Camouflage}}
<gallery widths="123" captionalign="left">
+
<gallery widths="123">
HK21BO.jpg|The HK21
 
  +
HK21 BO.png|First person view of the HK21
HK21 iron sight.jpg|HK21 iron sight
 
HK21 reloading.jpg|Reloading a HK21 with [[Extended Mags]]
+
HK21 Iron Sights BO.png|The HK21's [[iron sights]]
  +
H115 Oscillator Iron Sight Zombies.png|The '''H115 Oscillator''''s iron sights
File:Switching_to_HK21.png|Switching to the HK21
 
  +
HK21 Cocking BO.png|Cocking the HK21
hk21 115.jpg|The HK21 Pack-A-Punched into the "H115 Oscillator"
 
  +
ELITE HK21.png|Render of the HK21
HK21 with an ACOG Scope.JPG|HK21 with an [[ACOG Scope]]
 
  +
BO1BetaHK21.JPG|The HK21's beta menu icon (note the olive finish)
HK21 with a Red Dot Sight attached.JPG|HK21 with a [[Red Dot Sight]]
 
HK21 examining by hudson.jpg|3rd Person View of the HK21
+
HK21 Reload BO.png|Reloading the HK21
  +
HK21 Extended Mags Reload BO.png|Reloading the HK21 with [[Extended Mag]]
  +
HK21 Dive to Prone BO.png|Diving with the HK21
 
H115 Oscillator BO.jpg|The HK21 Pack-A-Punched into the "H115 Oscillator"
  +
HK21 Third Person BO.jpg|3rd Person View of the HK21
  +
HK21 Stats BO.jpg|The HK21's Multiplayer stats
  +
HK21 BO Z.png|The HK21 in ''[[Call of Duty: Black Ops Zombies]]''
  +
H115 Oscillator BOZ.png|The H115 Oscillator in ''Call of Duty: Black Ops Zombies''
 
</gallery>
 
</gallery>
   
  +
==Call of Duty: Modern Warfare II & Modern Warfare III==
===Videos===
 
  +
{{Infobox/Weapon2
[[Video:HK21 Light Machine Gun - All Attachments (Call of Duty®: Black Ops)|300px|left|thumb|Attachment guide]]
 
  +
|name = RAPP H
{{clear}}
 
  +
|image = [[File:RAPP H Gunsmith MWII.png]]
  +
|class = [[Light Machine Gun]]
  +
|platform = Lachmann & Meer Platform
  +
|manufacturer = [[Lachmann & Meer]]
  +
|level = [[Lachmann-762]] Level 13<br>[[Lachmann-556]] Level 16
  +
|fire = Full-Auto/Semi-Auto (select-fire)
  +
|caliber = {{w|7.62×51mm NATO|7.62 NATO}}
  +
|magazine = 75 rounds
 
|startammo = 75+150 (MP)
  +
|maxammo =
  +
|damage = 39-34-30
  +
|mult = Head: 1.2x
 
|rof = 813 RPM
  +
|reload = Tactical Reload: 6.93s<br>Empty Reload: 7.67s
  +
|range =
  +
|DDS =
  +
|DDE =
 
|recoil =
  +
|center =
  +
|pen =
  +
|ammoBR = [[Heavy Ammo]]
  +
|used = [[Mexican Army]]<br>[[Las Almas Cartel]]<br>[[Shadow Company (Reboot)|Shadow Company]] <small>([[DMZ]])</small>
  +
|HUD = [[File:RAPP H HUD Icon MWII.png|150px]]
  +
|console = <tt>lm_kilo21</tt>
  +
}}
  +
{{Quote|Featuring a belt-fed 7.62mm receiver with all the modularity of the Lachmann Meer platform, the RAPP H offers vesatililty in the light machine gun.|In-game description}}
  +
The HK21 returns in ''Call of Duty: Modern Warfare II'' as the '''RAPP H'''. This time, it is belt-fed rather than magazine-fed.
  +
  +
The RAPP H is also available in ''Call of Duty: Modern Warfare III'' as part of the ''Modern Warfare II'' content carryover.
  +
  +
===Overview===
  +
====Campaign====
  +
The RAPP H is found in various levels in the Campaign. The Mexican Army also used it as their primary light machine gun. It is also used by the [[Las Almas Cartel]].
  +
  +
====Zombies====
  +
In ''Modern Warfare III'', the RAPP H can be brought into [[Operation Deadbolt]] via [[Create-A-Class]], at <span style="color:gray">Common</span> rarity and can be found at any rarity via the [[Mystery Box]] for 950 [[Essence]]. When upgraded via the [[Pack-a-Punch Machine]] or with [[Aetherium Crystals]], it becomes the '''HIPP HP'''.
  +
  +
===Attachments===
  +
====Muzzle====
  +
  +
====Barrel====
  +
 
====Laser====
  +
  +
====Optic====
  +
  +
====Stock====
  +
  +
====Underbarrel====
  +
  +
====Ammunition====
  +
  +
====Magazine====
  +
  +
====Rear Grip====
  +
  +
====Receiver====
  +
*[[Lachmann-762]]
  +
*[[Lachmann-556]]
  +
*[[LM-S]]
  +
*[[Lachmann Sub]]
  +
*RAPP H
  +
*[[Lachmann Shroud]]
  +
  +
===Blueprints===
  +
{| border="1" cellspacing="1" cellpadding="1" style="width:600px" class="article-table sortable"
  +
|-
  +
! scope="col"|Blueprint
  +
! scope="col"|Image
  +
! scope="col"|How to Obtain
  +
|-
  +
|Big Wave
  +
|[[File:Big Wave RAPP H Blueprint MWII.png|150px]]
  +
|'''The Offseason''' Bundle
  +
|-
  +
|Mano de La Muerte
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|[[File:Mano de La Muerte RAPP H Blueprint MWII.png|150px]]
  +
|Battle Pass [[Season Three (Modern Warfare II)|Season Three]] Sector C2
  +
|-
  +
|Mercurial
  +
|[[File:Mercurial RAPP H Blueprint MWII.png|150px]]
  +
|'''Flow State''' Bundle
  +
|-
  +
|Raver
  +
|[[File:Raver RAPP H Blueprint MWII.png|150px]]
  +
|'''Rave Recon''' Bundle
  +
|-
  +
|Regality
  +
|[[File:Regality RAPP H Blueprint MWII.png|150px]]
  +
|'''Porcelain Slay''' Bundle
  +
|-
  +
|Sweet Ink
  +
|[[File:Sweet Ink RAPP H Blueprint MWII.png|150px]]
  +
|'''Etched Flesh''' Bundle
  +
|-
  +
|Tailgater
  +
|[[File:Tailgater RAPP H Blueprint MWII.png|150px]]
  +
|'''Beer Hunter''' Bundle
  +
|-
  +
|To the Nines
  +
|[[File:To the Nines RAPP H Blueprint MWII.png|150px]]
  +
|'''Fashion Animal''' Bundle
  +
|-
  +
|Upload
  +
|[[File:Upload RAPP H Blueprint MWII.png|150px]]
  +
|'''Jacked_In''' Bundle
  +
|-
  +
|}
  +
 
==Trivia==
  +
===Call of Duty: Black Ops===
 
*The HK21 has a fingerprint on the back of the iron sight.
 
*The "115" in "[[H115 Oscillator]]is a reference to [[Element 115]].
 
*Clan Tags are placed on the rear of the iron sights and are completely clear and visible, even when aiming down the iron sights.
 
*On the Wii version, the handguard and stock are black, whereas the Xbox, PS3, and PC versions have a tan color.
  +
**In early stages, the HK21 had an olive finish rather than a tan one.
 
*In third person the HK21 has a lot of muzzle flash; however, it is barely noticeable in first person.
 
*In the [[Create-A-Class]] display, the character's arm goes through a corner of the gun's stock.
 
*The iron sights' range are set to "2".
  +
*In the trailer for [[Call of the Dead]], the HK21 can be seen with a [[Extended Magazines|Drum Mag]] and an [[Infrared Scope]]. However, this setup does not appear in the map.
  +
*Despite the HK21's rate of fire being 535 RPM in Zombies mode, [[Robert McNamara]] states that it fires "seven hundred rounds", which is close to the multiplayer variant instead.
  +
*When using Double tap, the Weapon will fire at 750 RPM like the Campaign and Multiplayer variants.
   
== Trivia ==
 
*The HK21 has a noticeably slower rate of fire in [[Nazi Zombies]]
 
*The HK21, [[MP5k]], [[MP5]] , and [[PSG-1]] are based on the [[G3]] rifle, and are all manufactured by Heckler & Koch, hence their similar appearance.
 
*The HK21 in [[Nazi Zombies]] holds 125 rounds, even though it uses the 30 round magazine model. This was most likely for balancing reasons, as LMGs in [[World at War]] had more than a hundred rounds in Zombies.
 
*The HK21 has a fingerprint on the back of the iron sight
 
*When discarding the magazine, if one listens closely, it uses the same reload sound as the PPSH-41 from [[Call of Duty: World at War|''Call of Duty: World at War'']].
 
*The "115" in '[[H115 Oscillator]]' is a reference to [[Element 115]].
 
*Clan tags are placed on the rear of the iron sights and are completely clear and visible while aiming down the sights with no optical attachment.
 
*On the Wii version, the handguard and stock are black, whereas the Xbox, PS3, and PC versions have a somewhat tan-olive color.
 
*In third person the HK21 has a lot of muzzle flash, however, it is barely noticeable in first person.
 
*While in first person, the right side of the trigger guard is missing.
 
*The HK21 has the highest ammo-per-magazine of any weapon in Zombie mode.
 
*In the Create-A-class display, the character's arm goes through a corner of the gun's stock.
 
*The iron sights are always set to '2'.
 
 
{{CoD7 Weapons}}
 
{{CoD7 Weapons}}
  +
{{ZombiesWeapons}}
[[Category:Weapons]]
 
[[Category:Automatic Weapons]]
+
{{CoD19 Weapons}}
  +
{{CoD20 Weapons}}
[[Category:LMGs]]
 
  +
[[Category:Call of Duty: Black Ops Light Machine Guns]]
  +
[[Category:Call of Duty: Modern Warfare II Light Machine Guns]]
  +
[[Category:Call of Duty: Modern Warfare III Light Machine Guns]]

Latest revision as of 02:10, 10 April 2024

The subject of this article appeared in Call of Duty: Black Ops. The subject of this article appears in Call of Duty: Modern Warfare II The subject of this article appears in Call of Duty: Warzone 2 The subject of this article appears in Call of Duty: Modern Warfare III The subject of this article appeared in Zombies mode The subject of this article appears in Call of Duty: Warzone Mobile
For a similarly named cut weapon, see HK79.

The HK21 is a light machine gun featured in Call of Duty: Black Ops, Call of Duty: Modern Warfare II and Call of Duty: Modern Warfare III.

Call of Duty: Black Ops

"Seven hundred rounds, two minutes of continuous fire? I approve."
Robert McNamara, when obtaining the weapon from the Mystery Box in "Five".

Campaign

The HK21 is the secondary starting weapon for Hudson on the level "Rebirth." It is very powerful and usually kills in one or two shots to the torso, and has the ability to gib most enemies. It can also be found in other missions, such as "Numbers" and "WMD". Rarely, it can be found with a Round Drum, which gives the player 80 rounds per drum, making for a very effective weapon. In WMD, it can be picked up from dead Soviet soldiers

Multiplayer

The HK21 is unlocked at Level 2 to the player, as part of the default LMG class. It is also automatically unlocked in Create-a-Class.

The HK21 by default deals forty damage at all ranges, killing in three shots, or one shot at any range in Hardcore. The HK21 does 56 damage on a headshot at any range, allowing the HK21 to get a two shot kill at any range with two headshots, or dealing up to 96 damage on a headshot-bodyshot combination, which can kill mildly injured enemies. The HK21 has high penetration power, allowing it to retain most of its damage when shooting through obstructions.

The HK21 fires fully automatically, with a rate of fire of 750 RPM.

The HK21 has recoil values of 70 to the left, 70 to the right, 60 upwards, and 40 downwards. The HK21 has a centerspeed value of 1700.

The HK21 restricts users to move at 87.5% of the base movement speed, or strafe at 40% of the base movement speed. The HK21 allows users to aim down the sights in 350 milliseconds. The HK21's hip-fire spread is average. The HK21's reload animation is 3.75 seconds long, or 4.75 seconds long on an empty magazine. In either case, the user can Reload Cancel after 2.9 seconds.

The HK21 has a magazine capacity of thirty rounds. The HK21 has a starting ammo loadout of 120 rounds.

The HK21 has the standard assortment of LMG attachments to choose from. All attachments work as expected on the HK21, with no signifciant difference in effect when said attachments are used on the HK21.

Attachments

Zombies

The HK21 can be found in Zombies mode and can only be obtained from the Mystery Box. It starts with a magazine size of 125 rounds and with an extra 500 rounds. It has a reduced rate of fire from Multiplayer, firing at a measly 535 RPM, making it very unforgiving in this regard. However, the high amount of ammunition at disposal, and the low rate of fire, make reloads few and far in between. That being said, however, reloads can be painfully long, usually tempting the player to buy the expensive Speed Cola. Double Tap Root Beer is extremely useful on this weapon, as the large magazine will still take a long time to deplete, despite the great increase in the rate of fire. However, Double Tap Root Beer is absent on Ascension. The HK21 is often viewed as a "Love it or hate it" style weapon. Some players will love the high magazine size and power; however, others can simply detest the handling of the weapon, particularly the ADS time, reload times, and movement speeds, alongside the extremely slow rate of fire.

When Pack-a-Punched, it becomes the "H115 Oscillator". The magazine capacity is increased to 150 rounds, and the maximum reserve ammunition is increased substantially to 750 rounds, effectively leaving 900 rounds to be used as soon as it's obtained. The damage gets an increase as well. However, the maximum bullet damage of 210 is definitely less forgiving than other weapons, coupled with the excruciatingly low rate of fire; however, the high amount of ammunition offsets this.

In terms of performance, it is often compared to the RPK, due to their extremely large magazine capacities, and LMG statistics. The RPK is generally better when damage is concerned, as the much healthier rate of fire will often prove to down zombies quicker than the HK21 is capable of. However, the HK21 has overall better ammo conservation, and it has a much larger reserve supply. However, both of these weapons have little ammo consumption concerns, barring when the RPK user is using Double Tap Root Beer. Generally, many players will prefer the RPK over the HK21, for the higher damage, in trade for less ammunition, which it packs plenty of.

HK21 vs H115 Oscillator

HK21 H115 Oscillator
HK21 BO H115 Oscillator
Damage 150-110 210-150
Multiplier Head: x3
Chest: x1
Abdomen: x1
Head: x3
Chest: x1
Abdomen: x1
Fire mode Automatic Automatic
Rate of fire 535 RPM 535 RPM
Magazine size 125 150
Max ammo 500+125 750+150
Reload 3.75, 4.75 empty 3.75, 4.75 empty
Mobility Low Low
Extras Higher damage, larger magazine, more ammo


Gallery

For Attachment images, see HK21/Attachments.
For Camouflage images, see HK21/Camouflage.

Call of Duty: Modern Warfare II & Modern Warfare III

"Featuring a belt-fed 7.62mm receiver with all the modularity of the Lachmann Meer platform, the RAPP H offers vesatililty in the light machine gun."
— In-game description

The HK21 returns in Call of Duty: Modern Warfare II as the RAPP H. This time, it is belt-fed rather than magazine-fed.

The RAPP H is also available in Call of Duty: Modern Warfare III as part of the Modern Warfare II content carryover.

Overview

Campaign

The RAPP H is found in various levels in the Campaign. The Mexican Army also used it as their primary light machine gun. It is also used by the Las Almas Cartel.

Zombies

In Modern Warfare III, the RAPP H can be brought into Operation Deadbolt via Create-A-Class, at Common rarity and can be found at any rarity via the Mystery Box for 950 Essence. When upgraded via the Pack-a-Punch Machine or with Aetherium Crystals, it becomes the HIPP HP.

Attachments

Muzzle

Barrel

Laser

Optic

Stock

Underbarrel

Ammunition

Magazine

Rear Grip

Receiver

Blueprints

Blueprint Image How to Obtain
Big Wave Big Wave RAPP H Blueprint MWII The Offseason Bundle
Mano de La Muerte Mano de La Muerte RAPP H Blueprint MWII Battle Pass Season Three Sector C2
Mercurial Mercurial RAPP H Blueprint MWII Flow State Bundle
Raver Raver RAPP H Blueprint MWII Rave Recon Bundle
Regality Regality RAPP H Blueprint MWII Porcelain Slay Bundle
Sweet Ink Sweet Ink RAPP H Blueprint MWII Etched Flesh Bundle
Tailgater Tailgater RAPP H Blueprint MWII Beer Hunter Bundle
To the Nines To the Nines RAPP H Blueprint MWII Fashion Animal Bundle
Upload Upload RAPP H Blueprint MWII Jacked_In Bundle

Trivia

Call of Duty: Black Ops

  • The HK21 has a fingerprint on the back of the iron sight.
  • The "115" in "H115 Oscillator" is a reference to Element 115.
  • Clan Tags are placed on the rear of the iron sights and are completely clear and visible, even when aiming down the iron sights.
  • On the Wii version, the handguard and stock are black, whereas the Xbox, PS3, and PC versions have a tan color.
    • In early stages, the HK21 had an olive finish rather than a tan one.
  • In third person the HK21 has a lot of muzzle flash; however, it is barely noticeable in first person.
  • In the Create-A-Class display, the character's arm goes through a corner of the gun's stock.
  • The iron sights' range are set to "2".
  • In the trailer for Call of the Dead, the HK21 can be seen with a Drum Mag and an Infrared Scope. However, this setup does not appear in the map.
  • Despite the HK21's rate of fire being 535 RPM in Zombies mode, Robert McNamara states that it fires "seven hundred rounds", which is close to the multiplayer variant instead.
  • When using Double tap, the Weapon will fire at 750 RPM like the Campaign and Multiplayer variants.