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{{game|mw2|bo2|bod|aw|bo3|iw|bo4|mw}}{{For|the camouflage featured in Call of Duty: Modern Warfare Remastered|Cold Blooded Camouflage}}
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{{game|mw2|bo2|bod|aw|bo3|iw|bo4|mobile|mw|wz|bocw|vg|mwii|wz2|wzm}}
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{{For|the camouflage featured in [[Call of Duty: Modern Warfare Remastered]]|Cold Blooded Camouflage}}
   
'''Cold-Blooded''' is a Tier 2 [[perk|Perk]] featured in ''[[Call of Duty: Modern Warfare 2]]'', ''[[Call of Duty: Black Ops II]]'', ''[[Call of Duty: Black Ops: Declassified]]'', ''[[Call of Duty: Black Ops III]]'', ''[[Call of Duty: Infinite Warfare]]'', and ''[[Call of Duty: Black Ops 4]]'', and is a Tier 1 Perk in ''[[Call of Duty: Modern Warfare (2019)|Call of Duty: Modern Warfare]]''. It prevents the player from being highlighted by [[thermal scope]]s, and has several other benefits which vary by game.
+
'''Cold-Blooded''' is a Tier 2 [[Perks|Perk]] featured in ''[[Call of Duty: Modern Warfare 2]]'', ''[[Call of Duty: Black Ops II]]'', ''[[Call of Duty: Black Ops: Declassified]]'', ''[[Call of Duty: Advanced Warfare]]'', ''[[Call of Duty: Black Ops III]]'', ''[[Call of Duty: Infinite Warfare]]'', ''[[Call of Duty: Black Ops 4]]'', ''[[Call of Duty: Mobile]]'', a Tier 1 perk in ''[[Call of Duty: Modern Warfare (2019)|Call of Duty: Modern Warfare]]'', ''[[Call of Duty: Vanguard]]'', a Tier 3 perk in ''[[Call of Duty: Black Ops Cold War]]'' and a Bonus Perk in ''[[Call of Duty: Modern Warfare II]]''. It prevents the player from being highlighted by [[thermal scope]]s, and has several other benefits which vary by game.
   
 
==Call of Duty: Modern Warfare 2==
 
==Call of Duty: Modern Warfare 2==
 
{{Infobox/perk
 
{{Infobox/perk
  +
|image1 = Cold.png
|float = right
 
|image1 = [[File:Cold.png|128px]]
+
|imagepro = ColdPro.png
 
|category = [[:Category:Call of Duty: Modern Warfare 2 Tier 2 Perks|Tier 2 Perk]]
|imagepro = [[File:ColdPro.png|128px]]
 
 
|unlocked = Level 25
|category = t2
 
|name = ''Call of Duty: Modern Warfare 2''
 
|unlocked = Level 25
 
 
|unlockedpro = 40 destroyed killstreak rewards
 
|unlockedpro = 40 destroyed killstreak rewards
  +
|console = <tt>cold_blooded</tt>}}
|console = <tt>cold_blooded</tt>}}Cold-Blooded's primary ability is used for the avoidance of [[Killstreak|killstreak rewards]] - it allows the user to be invisible to all forms of air support. The vision for [[Chopper Gunner]]s, [[AC-130]]s and [[Predator Missile]]s show players with the Perk active, but does not highlight them with a red outline square. Cold-Blooded users can also be killed by collateral damage from other killstreaks, for instance standing between a user of a different tier 2 Perk while a [[Sentry Gun]] is firing upon them.
+
Cold-Blooded's primary ability is used for the avoidance of [[Killstreak|killstreak rewards]] - it allows the user to be invisible to all forms of air support. The vision for [[Chopper Gunner]]s, [[AC-130]]s and [[Predator Missile]]s show players with the Perk active, but does not highlight them with a red outline square. Cold-Blooded users can also be killed by collateral damage from other killstreaks, for instance standing between a user of a different tier 2 Perk while a [[Sentry Gun]] is firing upon them.
   
 
Instead of appearing as bright white silhouettes through a [[Thermal Scope]], Cold-Blooded players will appear as shades of gray similar to the environment, either friends or foes. This may actually cause the player to be at a disadvantage on snow maps, as the gray has more contrast with the environment, whereas the white-hot silhouette of non-Cold-Blooded players is much harder to spot against the white snow (of course, for this reason, most players choose not to use Thermal Scopes on winter maps, so the issue is often resolved). As they are not truly invisible, moving Cold-Blooded players are much easier to spot through Thermal Scopes than stationary ones. As most Thermal Scope users are more accustomed to bright white silhouettes on the map, it is easy for them to pass right over a Cold-Blooded user.
 
Instead of appearing as bright white silhouettes through a [[Thermal Scope]], Cold-Blooded players will appear as shades of gray similar to the environment, either friends or foes. This may actually cause the player to be at a disadvantage on snow maps, as the gray has more contrast with the environment, whereas the white-hot silhouette of non-Cold-Blooded players is much harder to spot against the white snow (of course, for this reason, most players choose not to use Thermal Scopes on winter maps, so the issue is often resolved). As they are not truly invisible, moving Cold-Blooded players are much easier to spot through Thermal Scopes than stationary ones. As most Thermal Scope users are more accustomed to bright white silhouettes on the map, it is easy for them to pass right over a Cold-Blooded user.
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==Call of Duty: Black Ops II==
 
==Call of Duty: Black Ops II==
 
{{Infobox/perk
 
{{Infobox/perk
 
|image = Cold Blooded Perk Icon BOII.png
|float = right
 
 
|category = [[:Category:Call of Duty: Black Ops II Tier 2 Perks|Tier 2 Perk]]
|image = [[File:Cold Blooded Perk Icon BOII.png]]
 
 
|unlocked = Level 4}}
|category = t2
 
 
{{Quote|Resistant to targeting systems including: Dual Band, Target Finder, Sensor Grenade, MMS, and player controlled aircraft. No name or red crosshair when targeted.|In-game description}}
|name = ''Call of Duty: Black Ops II''
 
 
Cold Blooded appears in ''[[Call of Duty: Black Ops II]]''. It prevents the player from appearing on the [[Dual Band Scope]], [[Target Finder]], [[Sensor Grenade]], [[Millimeter Scanner]], and player-controlled aircraft. It also prevents the red name and crosshairs from appearing on an enemy's screen when they are targeting the user.{{Clear}}
|unlocked = Level 4
 
|console = }}
 
{{Quote|Resistant to targeting systems including: Dual Band, Target Finder, Sensor Grenade, MMS, and player controlled aircraft. No name or red crosshair when targeted.|[[Create-a-Class]] Description}}
 
Cold Blooded appears in ''[[Call of Duty: Black Ops II]]''. It prevents the player from appearing on the [[Dual Band Scope]], [[Target Finder]], [[Sensor Grenade]], [[Millimeter Scanner]], and player-controlled aircraft. It also prevents the red name and crosshairs from appearing on an enemy's screen when they are targeting the user.
 
 
{{clear}}
 
   
 
==Call of Duty: Black Ops: Declassified==
 
==Call of Duty: Black Ops: Declassified==
  +
{{Infobox/perk
{{Quote|No name when targetted.|In-game description.}}
 
  +
|name = Cold Blooded
  +
|image = [[File:ColdBlooded Perk Icon BOD.png]]
 
|category = Tier 2
 
|unlocked = }}
 
{{Quote|No name when targeted.|In-game description.}}
 
Cold Blooded returns in ''[[Call of Duty: Black Ops: Declassified]]''.
 
Cold Blooded returns in ''[[Call of Duty: Black Ops: Declassified]]''.
  +
{{Clear}}
   
 
==Call of Duty: Advanced Warfare==
 
==Call of Duty: Advanced Warfare==
 
{{Infobox/perk
 
{{Infobox/perk
|name = ''Call of Duty: Advanced Warfare''
+
|name = Cold Blooded
|image = [[File:Cold Blooded menu icon AW.png]]
+
|image = Cold Blooded menu icon AW.png
 
|category = [[:Category:Call of Duty: Advanced Warfare Tier 2 Perks|Tier 2 Perk]]
|unlocked = Level 15}}
 
  +
|unlocked = Level 15
  +
}}
 
{{Quote|Immune to thermal, target enhancer, threat grenades and enemy call outs. No name displayed or reticle color change when enemies aim at you.|In-game description.}}
 
{{Quote|Immune to thermal, target enhancer, threat grenades and enemy call outs. No name displayed or reticle color change when enemies aim at you.|In-game description.}}
Cold Blooded returns in ''[[Call of Duty: Advanced Warfare]]'' as a tier 2 perk. It renders the player immune to thermal, target enhancer, threat grenades, and enemy callouts. No red name or reticle color changes when targeted.
 
   
 
Cold Blooded returns in ''[[Call of Duty: Advanced Warfare]]''. It renders the player immune to thermal, target enhancer, threat grenades, and enemy callouts. No red name or reticle color changes when targeted.
{{Clr}}
 
 
== Call of Duty: Black Ops III ==
 
{{Infobox/perk|image = [[File:Cold Blooded Perk Icon BO3.png]]|category = t2|unlocked = Level 26|name = ''Call of Duty: Black Ops III''}}
 
{{Quote|Not targeted by ground-based AI Scorestreaks. Immune to Thermal Optics.|[[Create-A-Class]] Description.}}
 
Cold Blooded re-appears in ''[[Call of Duty: Black Ops III]],'' preventing players from appearing on the [[Thermal Scope|Thermal Optic]], [[BOA 3]] and player-controlled aircraft. It will also prevent the player from being targeted by [[Sentry Gun]]s, [[Cerberus (scorestreak)]], [[GI Unit]]s, and [[R.A.P.S.]] in Ai-controlled mode.
 
   
 
{{Clear}}
 
{{Clear}}
   
== Call of Duty: Infinite Warfare ==
+
==Call of Duty: Black Ops III==
  +
{{Infobox/perk
{{Infobox/perk|image = [[File:Cold Blooded Menu Icon IW.png]]|category = t2|unlocked = Level 22|name = ''Call of Duty: Infinite Warfare''}}
 
  +
|name = Cold-Blooded
{{Quote|Invisible to thermal detection systems. Enemies cannot see your nameplate.|[[Create-A-Class]] Description.}}
 
  +
|image = Cold Blooded Perk Icon BO3.png
Cold-Blooded returns in [[Call of Duty: Infinite Warfare|''Call of Duty: Infinite Warfare'']]. It lets the user be invisible to thermal detection systems and for the nameplate not to appear when targeted. It is unlocked at level 22.
 
  +
|category = [[:Category:Call of Duty: Black Ops III Tier 2 Perks|Tier 2 Perk]]
  +
|unlocked = Level 26
  +
}}
 
{{Quote|Not targeted by ground-based AI Scorestreaks. Immune to Thermal Optics.|In-game description.}}
  +
 
Cold Blooded re-appears in ''[[Call of Duty: Black Ops III]],'' preventing players from appearing on the [[Thermal Scope|Thermal Optic]], [[BOA 3]] and player-controlled aircraft. It will also prevent the player from being targeted by [[Sentry Gun]]s, [[Cerberus (Black Ops III)|Cerberus]], [[GI Unit (scorestreak)|GI Unit]]s, and [[R.A.P.S.]] in AI-controlled mode.{{Clear}}
  +
 
==Call of Duty: Infinite Warfare==
  +
{{Infobox/perk
  +
|name = Cold-Blooded
  +
|image = Cold Blooded Menu Icon IW.png
  +
|category = [[:Category:Call of Duty: Infinite Warfare Tier 2 Perks|Tier 2 Perk]]
  +
|unlocked = Level 22
  +
}}
 
{{Quote|Invisible to thermal detection systems. Enemies cannot see your nameplate.|In-game description.}}
  +
 
Cold-Blooded returns in ''[[Call of Duty: Infinite Warfare]]''. It lets the user be invisible to thermal detection systems and for the nameplate not to appear when targeted. It is unlocked at level 22.
  +
 
This perk counters [[Thermal Scope|Thermal Sights]] and the [[Personal Radar (equipment)|Personal Radar]]. It also counters [[FTL|FTL's]] [[Perception]] trait and [[Marksman (perk)|Marksman]].
   
  +
===Gallery===
This perk counters [[Thermal Scope|Thermal Sights]] and the [[Personal Radar]]. It also counters [[FTL|FTL's]] [[Perception]] trait and [[Marksman (perk)|Marksman]].
 
 
<gallery>
 
<gallery>
 
Cold Blooded Unlock Card IW.png|Cold Blooded being unlocked in multiplayer.
 
Cold Blooded Unlock Card IW.png|Cold Blooded being unlocked in multiplayer.
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==Call of Duty: Black Ops 4==
 
==Call of Duty: Black Ops 4==
 
{{Infobox/perk
 
{{Infobox/perk
|name = ''Call of Duty: Black Ops 4''
+
|name = Cold Blooded
|image = [[File:Cold Blooded Create a Class BO4.png|128px]]
+
|image = [[File:BO4 perk coldblooded.png]]
  +
|category = [[:Category:Call of Duty: Black Ops 4 Tier 2 Perks|Tier 2 Perk]]
|unlocked = }}
 
  +
|unlocked = Level 15
{{Quote|AI Scorestreaks and Hawk tagging will be delayed when targeting you. Player-controlled Scorestreaks will not highlight you with a target reticle. Immune to Thermal. K-9 and Seeker have reduced detection range against you.|In-game description.}}
 
  +
}}
Cold-Blooded returns in ''[[Call of Duty: Black Ops 4]]'' as a perk in the second slot.
 
 
{{Quote|Increased resistance to enemy Ability, equipment, and Scorestreak targeting systems. Enemy AI will be delayed when targeting you. Player-controlled Scorestreaks will not highlight you with a targeting reticle.|In-game description}}
   
 
Cold-Blooded returns in ''Call of Duty: Black Ops 4'' as a Tier 2 perk.
{{clear}}
 
   
 
{{Clear}}
==Call of Duty: Modern Warfare (2019)==
 
  +
{{Quote|Undetectable by AI targeting systems and thermal optics. Does not trigger High Alert warnings.|In-game description}}
 
  +
==Call of Duty: Mobile==
Cold-Blooded returns in ''[[Call of Duty: Modern Warfare (2019)|Call of Duty: Modern Warfare]]'' as a Tier 1 perk. Cold-Blooded users will not be highlighted by thermal optics and will be ignored by [[Sentry Gun]]s, [[VTOL Jet (killstreak)|VTOL Jet]]s and [[Pave Low|Support Helo]]s, similar to [[Blind Eye]] from previous games. It is unlocked at level 29.
 
  +
{{Infobox/perk
  +
|name = Cold-Blooded
  +
|image = [[File:Cold-Blooded CODM.png]]
  +
|category = [[:Category:Call of Duty: Mobile Tier 2 Perks|Tier 2 Perk]]
 
|unlocked = Level 7
  +
}}
  +
{{Quote|Enemy AI-controlled Scorestreaks cannot target you. Does not affect manually-controlled Scorestreaks.|Description}}
  +
  +
Cold-Blooded returns in ''Call of Duty: Mobile'' as a Tier 2 perk.
  +
  +
It allowing the AI-controlled scorestreaks cannot target you.
  +
  +
{{Clear}}
  +
  +
==Call of Duty: Modern Warfare==
  +
{{Infobox/perk
  +
|name = Cold-Blooded
  +
|image = <tabber>
  +
|-|Patch = [[File:ColdBlooded Perk Patch MW.png]]
  +
|-|Icon = [[File:ColdBlooded Perk Icon MW.png]]
  +
</tabber>
  +
|category = [[:Category:Call of Duty: Modern Warfare (2019) Tier 1 Perks|Tier 1 Perk]]
  +
|unlocked = Level 29 <small>(Staff Sergeant IV)</small>
  +
}}
 
{{Quote|Undetectable by AI targeting systems and thermal optics. Does not trigger High Alert warning.|Multiplayer [[Create-A-Class]] description.}}
  +
{{Quote|Undetectable by AI targeting systems and thermal optics. Does not trigger High Alert warning and negates Combat Scout.|[[Call of Duty: Warzone|Warzone]] Create-a-Class description.}}
  +
 
Cold-Blooded returns in ''Call of Duty: Modern Warfare'' as a Tier 2 perk. Cold-Blooded users will not be highlighted by thermal optics and will be ignored by [[Sentry Gun]]s, [[VTOL Jet (killstreak)|VTOL Jets]] and [[Pave Low|Support Helos]], similar to [[Blind Eye]] from previous games, and will not trigger [[High Alert]].
   
 
Players with the Cold-Blooded perk are still visible on [[Recon Drone]]s, but cannot be marked.
 
Players with the Cold-Blooded perk are still visible on [[Recon Drone]]s, but cannot be marked.
  +
  +
In ''[[Call of Duty: Warzone]]'', this perk provides immunity to [[Combat Scout]].
  +
  +
{{Clear}}
  +
 
==Call of Duty: Black Ops Cold War==
  +
{{Infobox/perk
  +
|name = Cold Blooded
  +
|image = Cold Blooded Perk Icon BOCW.png
  +
|category = [[:Category:Call of Duty: Black Ops Cold War Tier 3 Perks|Tier 3 Perk]]
  +
|unlocked = Level 26
  +
}}
  +
{{Quote|AI-controlled Scorestreaks will not target you, and player-controlled Scorestreaks will not highlight you. Show up cold on Thermal. Players in vehicles won't see your nameplate. Immune to flashlight attachments.|In-game description.}}
  +
  +
Cold Blooded returns in ''Call of Duty: Black Ops Cold War'' as a Tier 3 perk.
  +
 
{{clear}}
  +
  +
==Call of Duty: Vanguard==
  +
{{Infobox/perk
  +
|name = Cold Blooded
  +
|image = [[File:ColdBlooded Perk Icon CODV.png]]
  +
|category = [[:Category:Call of Duty: Vanguard Tier 1 Perks|Tier 1 Perk]]
  +
|unlocked = Level 46
  +
}}
  +
{{quote|AI-controlled killstreaks will not target you, and player-controlled killstreaks will not highlight you. You do not trigger High Alert. Reduces the range at which awareness markers appear for enemies.|In-game description.}}
  +
  +
Cold Blooded returns in ''Call of Duty: Vanguard'' as a Tier 1 perk.
  +
  +
{{Clear}}
  +
 
==Call of Duty: Modern Warfare II==
  +
{{Infobox/perk
  +
|name = Cold-Blooded
  +
|image = [[File:Cold Blooded Perk Icon MWII.png]]
  +
|category = [[:Category:Call of Duty: Modern Warfare II Bonus Perks|Bonus Perk]]
  +
|unlocked = Level 28
  +
}}
  +
{{Quote|Undetectable by AI targeting systems, and thermal optics. Does not trigger High Alert warning. Does not highlight in enemy Tactical Cameras, Recon Drones, and Spotter Scopes.|In-game description}}
  +
  +
Cold-Blooded returns in ''Call of Duty: Modern Warfare II'' as a Bonus Perk and in ''[[Call of Duty: Warzone 2.0]]'' as a Tier 2 Perk.
  +
  +
{{Clear}}
   
 
==Trivia==
 
==Trivia==
  +
===General===
  +
* Creatures that are used as the perk icons, like lizards, snakes and scorpions, are cold-blooded, so they are immune to thermal sights.
 
===Call of Duty: Modern Warfare 2===
 
===Call of Duty: Modern Warfare 2===
*The perk picture shows a lizard surrounded by snowflakes, referencing that lizards are often called cold-blooded creatures.
 
 
*When killed by a controllable killstreak (Predator Missile, AC-130, Chopper Gunner) the killcam will depict players being killed incorrectly, as it shows a red square around the player's body, even though they would not appear with the square on their monitor normally.
 
*When killed by a controllable killstreak (Predator Missile, AC-130, Chopper Gunner) the killcam will depict players being killed incorrectly, as it shows a red square around the player's body, even though they would not appear with the square on their monitor normally.
*Team members using the Cold-Blooded Perk will not appear white on a friendly thermal scope.
+
*Teammates with Cold-Blooded won't appear white on a thermal scope.
*If the player shoots down two [[Harriers]] with one [[FIM-92 Stinger|Stinger]] missile and is still going for Cold-Blooded Pro, the two Harrier kills will only count as one.
+
*If players shoot down two [[AV-8B Harrier II|Harriers]] with one [[FIM-92 Stinger|Stinger]] missile and is still going for Cold-Blooded Pro, the two Harrier kills will only count as one.
 
===Call of Duty: Black Ops II===
  +
*Teammates, with or without Cold-Blooded, won't appear yellow on a Dual Band scope.
   
 
{{CoD6 Perks}}
 
{{CoD6 Perks}}
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{{CoD13 Perks}}
 
{{CoD13 Perks}}
 
{{CoD15 Perks}}
 
{{CoD15 Perks}}
  +
{{CoDMobile_Perks}}
 
{{CoD16 Perks}}
 
{{CoD16 Perks}}
  +
{{CoD17 Perks}}
 
  +
{{CoD18 Perks}}
  +
{{CoD19 Perks}}
  +
{{CoDWZ2 Perks}}
 
[[es:Sangre fría]]
 
[[es:Sangre fría]]
[[Category:Call of Duty: Black Ops III Tier 2 Perks]]
 
 
[[Category:Call of Duty: Modern Warfare 2 Tier 2 Perks]]
 
[[Category:Call of Duty: Modern Warfare 2 Tier 2 Perks]]
 
[[Category:Call of Duty: Black Ops II Tier 2 Perks]]
 
[[Category:Call of Duty: Black Ops II Tier 2 Perks]]
 
[[Category:Call of Duty: Black Ops: Declassified Tier 2 Perks]]
 
[[Category:Call of Duty: Black Ops: Declassified Tier 2 Perks]]
[[Category:Call of Duty Online Tier 2 Perks]]
 
[[Category:Call of Duty: Ghosts Stealth Perks]]
 
 
[[Category:Call of Duty: Advanced Warfare Tier 2 Perks]]
 
[[Category:Call of Duty: Advanced Warfare Tier 2 Perks]]
  +
[[Category:Call of Duty: Black Ops III Tier 2 Perks]]
 
[[Category:Call of Duty: Infinite Warfare Tier 2 Perks]]
 
[[Category:Call of Duty: Infinite Warfare Tier 2 Perks]]
  +
[[Category:Call of Duty: Black Ops 4 Tier 2 Perks]]
  +
[[Category:Call of Duty: Mobile Tier 2 Perks]]
 
[[Category:Call of Duty: Modern Warfare (2019) Tier 1 Perks]]
 
[[Category:Call of Duty: Modern Warfare (2019) Tier 1 Perks]]
  +
[[Category:Call of Duty: Black Ops Cold War Tier 3 Perks]]
  +
[[Category:Call of Duty: Vanguard Tier 1 Perks]]
  +
[[Category:Call of Duty: Modern Warfare II Bonus Perks]]
  +
[[Category:Call of Duty: Warzone 2.0 Perks]]

Latest revision as of 04:05, 18 March 2024

The subject of this article appeared in Call of Duty: Modern Warfare 2. The subject of this article appeared in Call of Duty: Black Ops II. The subject of this article appears in Call of Duty: Black Ops Declassified The subject of this article appears in Call of Duty: Advanced Warfare The subject of this article appeared in Call of Duty: Black Ops III. The subject of this article appears in Call of Duty: Infinite Warfare The subject of this article appears in Call of Duty: Black Ops 4 The subject of this article appears in Call of Duty: Mobile The subject of this article appears in Call of Duty: Modern Warfare (2019) The subject of this article appears in Call of Duty: Warzone The subject of this article appears in Call of Duty: Black Ops Cold War The subject of this article appears in Call of Duty: Vanguard 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: Warzone Mobile
For the camouflage featured in Call of Duty: Modern Warfare Remastered, see Cold Blooded Camouflage.

Cold-Blooded is a Tier 2 Perk featured in Call of Duty: Modern Warfare 2, Call of Duty: Black Ops II, Call of Duty: Black Ops: Declassified, Call of Duty: Advanced Warfare, Call of Duty: Black Ops III, Call of Duty: Infinite Warfare, Call of Duty: Black Ops 4, Call of Duty: Mobile, a Tier 1 perk in Call of Duty: Modern Warfare, Call of Duty: Vanguard, a Tier 3 perk in Call of Duty: Black Ops Cold War and a Bonus Perk in Call of Duty: Modern Warfare II. It prevents the player from being highlighted by thermal scopes, and has several other benefits which vary by game.

Call of Duty: Modern Warfare 2

Cold-Blooded's primary ability is used for the avoidance of killstreak rewards - it allows the user to be invisible to all forms of air support. The vision for Chopper Gunners, AC-130s and Predator Missiles show players with the Perk active, but does not highlight them with a red outline square. Cold-Blooded users can also be killed by collateral damage from other killstreaks, for instance standing between a user of a different tier 2 Perk while a Sentry Gun is firing upon them.

Instead of appearing as bright white silhouettes through a Thermal Scope, Cold-Blooded players will appear as shades of gray similar to the environment, either friends or foes. This may actually cause the player to be at a disadvantage on snow maps, as the gray has more contrast with the environment, whereas the white-hot silhouette of non-Cold-Blooded players is much harder to spot against the white snow (of course, for this reason, most players choose not to use Thermal Scopes on winter maps, so the issue is often resolved). As they are not truly invisible, moving Cold-Blooded players are much easier to spot through Thermal Scopes than stationary ones. As most Thermal Scope users are more accustomed to bright white silhouettes on the map, it is easy for them to pass right over a Cold-Blooded user.

The Pro version prevents the red name and cross-hairs from appearing on an enemy's screen when they are targeting the user. It is unlocked by destroying 40 enemy killstreak rewards while using this perk. The perk is essential for the "ghosting" tactic, and the Pro version can assist in doing so.

Experienced players use the Pro version in order to play dead, often for "Ninja Defusing", or just to fool enemies who may have hurt them. By going prone, and repeatedly pressing the weapon swap or "cooking" a Stun, Flash, Smoke or Semtex grenade, it will appear as if the player is dead to others.

Call of Duty: Black Ops II

"Resistant to targeting systems including: Dual Band, Target Finder, Sensor Grenade, MMS, and player controlled aircraft. No name or red crosshair when targeted."
— In-game description

Cold Blooded appears in Call of Duty: Black Ops II. It prevents the player from appearing on the Dual Band Scope, Target Finder, Sensor Grenade, Millimeter Scanner, and player-controlled aircraft. It also prevents the red name and crosshairs from appearing on an enemy's screen when they are targeting the user.

Call of Duty: Black Ops: Declassified

"No name when targeted."
— In-game description.

Cold Blooded returns in Call of Duty: Black Ops: Declassified.

Call of Duty: Advanced Warfare

"Immune to thermal, target enhancer, threat grenades and enemy call outs. No name displayed or reticle color change when enemies aim at you."
— In-game description.


Cold Blooded returns in Call of Duty: Advanced Warfare. It renders the player immune to thermal, target enhancer, threat grenades, and enemy callouts. No red name or reticle color changes when targeted.

Call of Duty: Black Ops III

"Not targeted by ground-based AI Scorestreaks. Immune to Thermal Optics."
— In-game description.


Cold Blooded re-appears in Call of Duty: Black Ops III, preventing players from appearing on the Thermal Optic, BOA 3 and player-controlled aircraft. It will also prevent the player from being targeted by Sentry Guns, Cerberus, GI Units, and R.A.P.S. in AI-controlled mode.

Call of Duty: Infinite Warfare

"Invisible to thermal detection systems. Enemies cannot see your nameplate."
— In-game description.


Cold-Blooded returns in Call of Duty: Infinite Warfare. It lets the user be invisible to thermal detection systems and for the nameplate not to appear when targeted. It is unlocked at level 22.

This perk counters Thermal Sights and the Personal Radar. It also counters FTL's Perception trait and Marksman.

Gallery

Call of Duty: Black Ops 4

"Increased resistance to enemy Ability, equipment, and Scorestreak targeting systems. Enemy AI will be delayed when targeting you. Player-controlled Scorestreaks will not highlight you with a targeting reticle."
— In-game description


Cold-Blooded returns in Call of Duty: Black Ops 4 as a Tier 2 perk.

Call of Duty: Mobile

"Enemy AI-controlled Scorestreaks cannot target you. Does not affect manually-controlled Scorestreaks."
— Description


Cold-Blooded returns in Call of Duty: Mobile as a Tier 2 perk.

It allowing the AI-controlled scorestreaks cannot target you.

Call of Duty: Modern Warfare

"Undetectable by AI targeting systems and thermal optics. Does not trigger High Alert warning."
— Multiplayer Create-A-Class description.
"Undetectable by AI targeting systems and thermal optics. Does not trigger High Alert warning and negates Combat Scout."
Warzone Create-a-Class description.


Cold-Blooded returns in Call of Duty: Modern Warfare as a Tier 2 perk. Cold-Blooded users will not be highlighted by thermal optics and will be ignored by Sentry Guns, VTOL Jets and Support Helos, similar to Blind Eye from previous games, and will not trigger High Alert.

Players with the Cold-Blooded perk are still visible on Recon Drones, but cannot be marked.

In Call of Duty: Warzone, this perk provides immunity to Combat Scout.

Call of Duty: Black Ops Cold War

"AI-controlled Scorestreaks will not target you, and player-controlled Scorestreaks will not highlight you. Show up cold on Thermal. Players in vehicles won't see your nameplate. Immune to flashlight attachments."
— In-game description.


Cold Blooded returns in Call of Duty: Black Ops Cold War as a Tier 3 perk.

Call of Duty: Vanguard

"AI-controlled killstreaks will not target you, and player-controlled killstreaks will not highlight you. You do not trigger High Alert. Reduces the range at which awareness markers appear for enemies."
— In-game description.


Cold Blooded returns in Call of Duty: Vanguard as a Tier 1 perk.

Call of Duty: Modern Warfare II

"Undetectable by AI targeting systems, and thermal optics. Does not trigger High Alert warning. Does not highlight in enemy Tactical Cameras, Recon Drones, and Spotter Scopes."
— In-game description


Cold-Blooded returns in Call of Duty: Modern Warfare II as a Bonus Perk and in Call of Duty: Warzone 2.0 as a Tier 2 Perk.

Trivia

General

  • Creatures that are used as the perk icons, like lizards, snakes and scorpions, are cold-blooded, so they are immune to thermal sights.

Call of Duty: Modern Warfare 2

  • When killed by a controllable killstreak (Predator Missile, AC-130, Chopper Gunner) the killcam will depict players being killed incorrectly, as it shows a red square around the player's body, even though they would not appear with the square on their monitor normally.
  • Teammates with Cold-Blooded won't appear white on a thermal scope.
  • If players shoot down two Harriers with one Stinger missile and is still going for Cold-Blooded Pro, the two Harrier kills will only count as one.

Call of Duty: Black Ops II

  • Teammates, with or without Cold-Blooded, won't appear yellow on a Dual Band scope.