Challenges/Call of Duty: Modern Warfare 2

Call of Duty: Modern Warfare 2 has many challenges to help players rank up. Below is a list of all of the different categories.
==Primary Weapons==
===Assault Rifles===
	= Unlocked after Prestiging
Challenge 	How To Complete 	Unlocks 	XP Reward
Marksman I 	10 kills 	Grenade Launcher 	250
Marksman II 	25 kills 	Red Dot Sight 	1000
Marksman III 	75 kills 	Silencer 	2000
Marksman IV 	150 kills 	ACOG Scope 	5000
Marksman V 	300 kills 	FMJ 	10000
Marksman VI 	500 kills 	 	10000
Marksman VII 	750 kills 	 	10000
Marksman VIII 	1000 kills 	 	10000
Expert I 	5 headshots 	Woodland Camouflage 	500
Expert II 	15 headshots 	Digital Camouflage 	1000
Expert III 	30 headshots 	Urban Camouflage 	2500
Expert IV 	75 heashots 	Blue Tiger Camouflage 	5000
Expert V 	150 headshots 	Red Tiger Camouflage 	10000
Expert VI 	250 headshots 	Fall Camouflage 	10000
Expert VII 	350 headshots 	 	10000
Expert VIII 	500 headshots 	 	10000
Shotgun 	20 Kills with Grenade Launcher 	Shotgun 	750
Holographic Sight	60 Kills aiming down Red Dot Sight 	Holographic Sight 	1000
Heartbeat Sensor 	15 Kills with Silencer 	Heartbeat Sensor 	750
Thermal Scope 	20 Kills aiming down ACOG Scope 	Thermal Scope 	750
Extended Mags 	40 Bullet Penetration Kills with FMJ	Extended Mags 	1000
Mastery 	Unlock all attachments 	Bronze cross weapon title 	10000
Veteran I 	500 kills 	Silver weapon title 	10000
Veteran II 	1000 kills 	Silver weapon emblem 	10000
Veteran III 	2500 kills 	Silver skulls weapon title 	10000
Master I 	250 headshots 	Silver weapon title with headshot icon	10000
Master II 	500 headshots 	Gold weapon emblem 	10000
Master III 	1000 headshots 	Gold skulls weapon title 	10000
=== Submachine Guns ===
	= Unlocked after Prestiging
Challenge 	How To Complete 	Unlocks 	XP Reward
Marksman I 	10 kills 	Rapid Fire 	250
Marksman II 	25 kills 	Red Dot Sight 	1000
Marksman III 	75 kills 	Silencer 	2000
Marksman IV 	150 kills 	ACOG Scope 	5000
Marksman V 	300 kills 	FMJ 	10000
Marksman VI 	500 kills 	 	10000
Marksman VII 	750 kills 	 	10000
Marksman VIII 	1000 kills 	 	10000
Expert I 	5 headshots 	Woodland Camouflage 	500
Expert II 	15 headshots 	Digital Camouflage 	1000
Expert III 	30 headshots 	Urban Camouflage 	2500
Expert IV 	75 headshots 	Blue Tiger Camouflage 	5000
Expert V 	150 headshots 	Red Tiger Camouflage 	10000
Expert VI 	250 headshots 	Fall Camouflage 	10000
Expert VII 	350 headshots 	 	10000
Expert VIII 	500 headshots 	 	10000
Akimbo 	30 Kills with Rapid Fire 	Akimbo 	1000
Holographic Sight	60 Kills aiming down Red Dot Sight 	Holographic Sight 	1000
Thermal Scope 	20 Kills aiming down ACOG Scope 	Thermal Scope 	750
Extended Mags 	40 Bullet Penetration Kills with FMJ	Extended Mags 	1000
Mastery 	Unlock all attachments 	Bronze cross weapon title 	10000
Veteran I 	500 kills 	Silver weapon title 	10000
Veteran II 	1000 kills 	Silver weapon emblem 	10000
Veteran III 	2500 kills 	Silver skulls weapon title 	10000
Master I 	250 headshots 	Silver weapon title with headshot icon	10000
Master II 	500 headshots 	Gold weapon emblem 	10000
Master III 	1000 headshots 	Gold skulls weapon title 	10000
=== Light Machine Guns ===
	= Unlocked after Prestiging
Challenge 	How To Complete 	Unlocks 	XP Reward
Marksman I 	10 kills 	Grip 	250
Marksman II 	25 kills 	Red Dot Sight 	1000
Marksman III 	75 kills 	Silencer 	2000
Marksman IV 	150 kills 	ACOG Scope 	5000
Marksman V 	300 kills 	FMJ 	10000
Marksman VI 	500 kills 	 	10000
Marksman VII 	750 kills 	 	10000
Marksman VIII 	1000 kills 	 	10000
Expert I 	5 headshots 	Woodland Camouflage 	500
Expert II 	15 headshots 	Digital Camouflage 	1000
Expert III 	30 headshots 	Urban Camouflage 	2500
Expert IV 	75 heashots 	Blue Tiger Camouflage 	5000
Expert V 	150 headshots 	Red Tiger Camouflage 	10000
Expert VI 	250 headshots 	Fall Camouflage 	10000
Expert VII 	350 headshots 	 	10000
Expert VIII 	500 headshots 	 	10000
Holographic Sight	60 Kills aiming down Red Dot Sight 	Holographic Sight 	1000
Heartbeat Sensor 	15 Kills with Silencer 	Heartbeat Sensor 	750
Thermal Scope 	20 Kills aiming down ACOG Scope 	Thermal Scope 	750
Extended Mags 	40 Bullet Penetration Kills with FMJ	Extended Mags 	1000
Mastery 	Unlock all attachments 	Bronze cross weapon title 	10000
Veteran I 	500 kills 	Silver weapon title 	10000
Veteran II 	1000 kills 	Silver weapon emblem 	10000
Veteran III 	2500 kills 	Silver skulls weapon title 	10000
Master I 	250 headshots 	Silver weapon title with headshot icon	10000
Master II 	500 headshots 	Gold weapon emblem 	10000
Master III 	1000 headshots 	Gold skulls weapon title 	10000
=== Sniper Rifles ===
	= Unlocked after Prestiging
Challenge 	How To Complete 	Unlocks 	XP Reward
Marksman I 	10 kills 	Silencer 	250
Marksman II 	25 kills 	ACOG Scope 	1000
Marksman III 	75 kills 	FMJ 	2000
Marksman IV 	150 kills 	 	5000
Marksman V 	300 kills 	 	10000
Marksman VI 	500 kills 	 	10000
Marksman VII 	750 kills 	 	10000
Marksman VIII 	1000 kills 	 	10000
Expert I 	5 headshots 	Woodland Camouflage 	500
Expert II 	15 headshots 	Digital Camouflage 	1000
Expert III 	30 headshots 	Urban Camouflage 	2500
Expert IV 	75 heashots 	Blue Tiger Camouflage 	5000
Expert V 	150 headshots 	Red Tiger Camouflage 	10000
Expert VI 	250 headshots 	Fall Camouflage 	10000
Expert VII 	350 headshots 	 	10000
Expert VIII 	500 headshots 	 	10000
Heartbeat Sensor	15 Kills with Silencer 	Heartbeat Sensor 	750
Thermal Scope 	20 Kills aiming down ACOG Scope 	Thermal Scope 	750
Extended Mags 	40 Bullet Penetration Kills with FMJ	Extended Mags 	1000
Mastery 	Unlock all attachments 	Bronze cross weapon title 	10000
Veteran I 	500 kills 	Silver weapon title 	10000
Veteran II 	1000 kills 	Silver weapon emblem 	10000
Veteran III 	2500 kills 	Silver skulls weapon title 	10000
Master I 	250 headshots 	Silver weapon title with headshot icon	10000
Master II 	500 headshots 	Gold weapon emblem 	10000
Master III 	1000 headshots 	Gold skulls weapon title 	10000
==Riot Shield==
Challenge 	How To Complete 	XP Reward
Veteran I 	2 shield bash kills 	500
Veteran II 	5 shield bash kills 	1000
Veteran III 	15 shield bash kills 	2500
Smasher 	3 Kill Streak with the Riot Shield 	500
Back-Smasher 	Kill an enemy from behind 	100
Sponge I 	Absorb 1000 damage with Riot Shield 	500
Sponge II 	Absorb 10000 damage with Riot Shield 	1000
Sponge III 	Absorb 50000 damage with Riot Shield 	2500
Bullet Proof I 	Deflect 1000 bullets with Riot Shield 	500
Bullet Proof II 	Deflect 10000 bullets with Riot Shield 	1000
Bullet Proof III	Deflect 50000 bullets with Riot Shield 	2500
Unbreakable I 	Survive 10 explosions with Riot Shield 	500
Unbreakable II 	Survive 50 explosions with Riot Shield 	1000
Unbreakable III 	Survive 100 explosions with Riot Shield	2500
== Secondary Weapons ==
=== Machine Pistols ===
	= Unlocked after Prestiging
Challenge 	How To Complete	Unlocks 	XP Reward
Marksman I 	10 kills 	Red Dot Sight 	500
Marksman II 	25 kills 	Silencer 	1000
Marksman III 	50 kills 	FMJ 	1500
Marksman IV 	75 kills 	Akimbo 	2000
Marksman V 	100 kills 	Holographic Sight 	2500
Marksman VI 	150 kills 	Extended Mags 	3500
Marksman VII 	300 kills 	 	10000
Marksman VIII	1000 kills 	 	10000
Expert I 	5 headshots 	 	500
Expert II 	15 headshots 	 	1000
Expert III 	30 headshots 	 	2500
Expert IV 	75 headshots 	 	5000
Expert V 	150 headshots 	 	10000
Expert VI 	250 headshots 	 	10000
Expert VII 	350 headshots 	 	10000
Expert VIII 	500 headshots 	 	10000
Veteran I 	500 kills 	Silver weapon title 	10000
Veteran II 	1000 kills 	Silver weapon emblem 	10000
Veteran III 	2500 kills 	Silver skulls weapon title 	10000
Master I 	250 headshots 	Silver weapon title with headshot icon	10000
Master II 	500 headshots 	Gold weapon emblem 	10000
Master III 	1000 headshots 	Gold skulls weapon title 	10000
=== Shotguns ===
*Ranger and Model 1887 attachments are only: Akimbo (10 kills) & FMJ (50 kills)
	= Unlocked after Prestiging
Challenge 	How To Complete	Unlocks 	XP Reward
Marksman I 	10 Kills 	Red Dot Sight 	500
Marksman II 	25 kills 	Silencer 	1000
Marksman III 	75 kills 	Grip 	2500
Marksman IV 	150 kills 	FMJ 	5000
Marksman V 	250 kills 	Holographic Sight 	10000
Marksman VI 	400 kills 	Extended Mags 	10000
Marksman VII 	500 kills 	 	10000
Marksman VIII	1000 kills 	 	10000
Expert I 	5 headshots 	 	500
Expert II 	10 headshots 	 	1000
Expert III 	20 headshots 	 	2500
Expert IV 	40 headshots 	 	5000
Expert V 	100 headshots 	 	10000
Expert VI 	200 headshots 	 	10000
Expert VII 	350 headshots 	 	10000
Expert VIII 	500 headshots 	 	10000
Veteran I 	500 kills 	Silver weapon title 	10000
Veteran II 	1000 kills 	Silver weapon emblem 	10000
Veteran III 	2500 kills 	Silver skulls weapon title 	10000
Master I 	250 headshots 	Silver weapon title with headshot icon	10000
Master II 	500 headshots 	Gold weapon emblem 	10000
Master III 	1000 headshots 	Gold skulls weapon title 	10000
=== Handguns ===
*The .44 Magnum and Desert Eagle have only FMJ, Akimbo, and Tactical Knife for its attachments. The kills required for them are the same, except for the Tactical Knife which needs 100 kills to unlock.
	= Unlocked after Prestiging
Challenge 	How To Complete	Unlocks 	XP Reward
Marksman I 	10 kills 	FMJ 	500
Marksman II 	25 kills 	Silencer 	1000
Marksman III 	50 kills 	Akimbo 	1500
Marksman IV 	75 kills 	Tactical Knife 	2500
Marksman V 	100 kills 	Extended Mags 	3500
Marksman VI 	300 kills 	 	10000
Marksman VII 	500 kills 	 	10000
Marksman VIII	1000 kills 	 	10000
Expert I 	5 headshots 	 	500
Expert II 	15 headshots 	 	1000
Expert III 	30 headshots 	 	2500
Expert IV 	75 headshots 	 	5000
Expert V 	150 headshots 	 	10000
Expert VI 	250 headshots 	 	10000
Expert VII 	350 headshots 	 	10000
Expert VIII 	500 headshots 	 	10000
Veteran I 	500 kills 	Silver weapon title 	10000
Veteran II 	1000 kills 	Silver weapon emblem 	10000
Veteran III 	2500 kills 	Silver skulls weapon title 	10000
Master I 	250 headshots 	Silver weapon title with headshot icon	10000
Master II 	500 headshots 	Gold weapon emblem 	10000
Master III 	1000 headshots 	Gold skulls weapon title 	10000
=== Launchers ===
	= Unlocked after Prestiging
Challenge 	How To Complete 	Unlocks 	XP Reward
Marksman I 	10 kills 	 	250
Marksman II 	25 kills 	 	1000
Marksman III 	75 kills 	 	2000
Marksman IV 	150 kills 	 	5000
Marksman V 	300 kills 	 	10000
Marksman VI 	500 kills 	 	10000
Marksman VII 	800 kills 	 	10000
Marksman VIII	1200 kills 	 	10000
Veteran I 	500 kills 	Silver weapon title 	10000
Veteran II 	1000 kills 	 	10000
Veteran III 	2500 kills 	Silver skulls weapon title 	10000
Master I 	250 multi-kills 	Silver weapon title with headshot icon	10000
Master II 	500 multi-kills 	 	10000
Master III 	1000 multi-kills	Gold skulls weapon title 	10000
*The Stinger is the only launcher that the player must shoot down helicopters to fulfill the challenge.
== Perks ==
Challenge 	How To Complete 	Title Unlock	Emblem Unlock	XP Reward
Marathon Pro I 	Run 1 mile using Marathon 	 	 	500
Marathon Pro II 	Run 5 miles using Marathon 	 	 	1000
Marathon Pro III 	Run 10 miles using Marathon 	 	 	2500
Marathon Pro IV 	Run 26 miles using Marathon 	 	 	5000
Marathon Pro V 	Run 52 miles using Marathon 	 	 	10000
Marathon Pro VI 	Run 104 miles using Marathon 	 	 	10000
Scavenger Pro I 	Resupply 10 times using Scavenger 	 	 	500
Scavenger Pro II 	Resupply 25 times using Scavenger 	 	 	1000
Scavenger Pro III 	Resupply 50 times using Scavenger 	 	 	2500
Scavenger Pro IV 	Resupply 100 times using Scavenger 	 	 	5000
Scavenger Pro V 	Resupply 250 times using Scavenger 	 	 	10000
Scavenger Pro VI 	Resupply 500 times using Scavenger 	 	 	10000
Bling Pro I 	25 kills using a weapon with 2 attachments 	 	 	500
Bling Pro II 	50 kills using a weapon with 2 attachments 	 	 	1000
Bling Pro III 	100 kills using a weapon with 2 attchments 	 	 	2500
Bling Pro IV 	200 kills using a weapon with 2 attachments 	 	 	5000
Bling Pro V 	450 kills using a weapon with 2 attachments 	 	 	10000
Bling Pro VI 	900 kills using a weapon with 2 attachments 	 	 	10000
One Man Army Pro I 	15 kills while using One Man Army 	 	 	500
One Man Army Pro II 	30 kills while using One Man Army 	 	 	1000
One Man Army Pro III 	60 kills while using One Man Army 	 	 	2500
One Man Army Pro IV 	120 kills while using One Man Army 	 	 	5000
One Man Army Pro V 	300 kills while using One Man Army 	 	 	10000
One Man Army Pro VI 	750 kills while using One Man Army 	 	 	10000
Sleight of Hand Pro I 	15 kills while using Sleight of Hand 	 	 	500
Sleight of Hand Pro II 	30 kills while using Sleight of Hand 	 	 	1000
Sleight of Hand Pro III	60 kills while using Sleight of Hand 	 	 	2500
Sleight of Hand Pro IV 	120 kills while using Sleight of Hand 	 	 	5000
Sleight of Hand Pro V 	300 kills while using Sleight of Hand 	 	 	10000
Sleight of Hand Pro VI 	750 kills while using Sleight of Hand 	 	 	10000
Stopping Power Pro I 	30 kills while using Stopping Power 	 	 	500
Stopping Power Pro II 	60 kills while using Stopping Power 	 	 	1000
Stopping Power Pro III 	120 kills while using Stopping Power 	 	 	2500
Stopping Power Pro IV 	250 kills while using Stopping Power 	 	 	5000
Stopping Power Pro V 	500 kills while using Stopping Power 	 	 	10000
Stopping Power Pro VI 	1000 kills while using Stopping Power 	 	 	10000
Hardline Pro I 	Earn 3 killstreaks while using Hardline 	 	 	500
Hardline Pro II 	Earn 10 killstreaks while using Hardline 	 	 	1000
Hardline Pro III 	Earn 20 killstreaks while using Hardline 	 	 	2500
Hardline Pro IV 	Earn 40 killstreaks while using Hardline 	 	 	5000
Hardline Pro V 	Earn 100 killstreaks while using Hardline 	 	 	10000
Hardline Pro VI 	Earn 250 killstreaks while using Hardline 	 	 	10000
Lightweight Pro I 	Run 2 miles using Lightweight 	 	 	500
Lightweight Pro II 	Run 8 miles using Lightweight 	 	 	1000
Lightweight Pro III 	Run 15 miles using Lightweight 	 	 	2500
Lightweight Pro IV 	Run 30 miles using Lightweight 	 	 	5000
Lightweight Pro V 	Run 100 miles using Lightweight 	 	 	10000
Lightweight Pro VI 	Run 250 miles using Leightweight 	 	 	10000
Cold Blooded Pro I 	Destroy 3 Killstreak Rewards while using Cold Blooded 	 	 	500
Cold Blooded Pro II 	Destroy 10 Killstreak Rewards while using Cold Blooded 	 	 	1000
Cold Blooded Pro III 	Destroy 20 Killstreak Rewards while using Cold Blooded 	 	 	2500
Cold Blooded Pro IV 	Destroy 40 Killstreak Rewards while using Cold Blooded 	 	 	5000
Cold Blooded Pro V 	Destroy 100 Killstreak Rewards while using Cold Blooded	 	 	10000
Cold Blooded Pro VI 	Destroy 250 Killstreak Rewards while using Cold Blooded	 	 	10000
Danger Close Pro I 	10 kills with explosives while using Danger Close 	 	 	500
Danger Close Pro II 	25 kills with explosives while using Danger Close 	 	 	1000
Danger Close Pro III 	50 kills with explosives while using Danger Close 	 	 	2500
Danger Close Pro IV 	100 kills with explosives while using Danger Close 	 	 	5000
Danger Close Pro V 	250 kills with explosives while using Danger Close 	 	 	10000
Danger Close Pro VI 	500 kills with explosives while using Danger Close 	 	 	10000
Commando Pro I 	2 melee kills while using Commando 	 	 	500
Commando Pro II 	5 melee kills while using Commando 	 	 	1000
Commando Pro III 	10 melee kills while using Commando 	 	 	2500
Commando Pro IV 	20 melee kills while using Commando 	 	 	5000
Commando Pro V 	50 melee kills while using Commando 	 	 	10000
Commando Pro VI 	100 melee kills while using Commando 	 	 	10000
Steady Aim Pro I 	10 hip-fire kills while using Steady Aim 	 	 	500
Steady Aim Pro II 	20 hip-fire kills while using Steady Aim 	 	 	1000
Steady Aim Pro III 	40 hip-fire kills while using Steady Aim 	 	 	2500
Steady Aim Pro IV 	80 hip-fire kills while using Steady Aim 	 	 	5000
Steady Aim Pro V 	200 hip-fire kills while using Steady Aim 	 	 	10000
Steady Aim Pro VI 	500 hip-fire kills while using Steady Aim 	 	 	10000
Ninja Pro I 	5 close range kills while using Ninja 	 	 	500
Ninja Pro II 	10 close range kills while using Ninja 	 	 	1000
Ninja Pro III 	25 close range kills while using Ninja 	 	 	2500
Ninja Pro IV 	50 close range kills while using Ninja 	 	 	5000
Ninja Pro V 	125 close range kills while using Ninja 	 	 	10000
Ninja Pro VI 	250 close range kills while using Ninja 	 	 	10000
Scrambler Pro I 	5 close range kills while using Scrambler 	 	 	500
Scrambler Pro II 	10 close range kills while using Scrambler 	 	 	1000
Scrambler Pro III 	25 close range kills while using Scrambler 	 	 	2500
Scrambler Pro IV 	50 close range kills while using Scrambler 	 	 	5000
Scrambler Pro V 	125 close range kills while using Scrambler 	 	 	10000
Scrambler Pro VI 	250 close range kills while using Scrambler 	 	 	10000
SitRep Pro I 	Destroy 15 enemy devices while using SitRep 	 	 	500
SitRep Pro II 	Destroy 30 enemy devices while using SitRep 	 	 	1000
SitRep Pro III 	Destroy 60 enemy devices while using SitRep 	 	 	2500
SitRep Pro IV 	Destroy 120 enemy devices while using SitRep 	 	 	5000
SitRep Pro V 	Destroy 300 enemy devices while using SitRep 	 	 	10000
SitRep Pro VI 	Destroy 750 enemy devices while using SitRep 	 	 	10000
Last Stand Pro I 	2 Last Stand kills 	 	 	500
Last Stand Pro II 	5 Last Stand kills 	 	 	1000
Last Stand Pro III 	10 Last Stand kills 	 	 	2500
Last Stand Pro IV 	20 Last Stand kills 	 	 	5000
Last Stand Pro V 	50 Last Stand kills 	 	 	10000
Last Stand Pro VI 	100 Last Stand kills 	 	 	10000
Completing a (perk) IV challenge unlocks the Pro version of the perk.
== Equipment ==
Challenge 	How To Complete 	Title Unlock	Emblem Unlock	XP Reward
Darkbringer 	Prevent 25 Tactical Insertions 	 	 	1000
Tactical Deletion 	Kill 25 enemies that spawn using Tactical Insertion 	 	 	1000
Jack-in-the-Box I 	Kill an enemy within 5 seconds of tactically inserting 10 times	 	 	500
Jack-in-the-Box II 	Kill an enemy within 5 seconds of tactically inserting 25 times	 	 	2500
Jack-in-the-Box III	Kill an enemy within 5 seconds of tactically inserting 50 times	 	 	5000
Grenade Kill I 	Kill 10 enemies with grenades 	 	 	500
Grenade Kill II 	Kill 25 enemies with grenades 	 	 	2500
Greande Kill III 	Kill 50 enemies with greandes 	 	 	5000
Plastered I 	Stick 5 enemies with a Semtex Grenade 	 	 	500
Plastered II 	Stick 15 enemies with a Semtex Grenade 	 	 	2500
Plastered III 	Stick 30 enemies with a Semtex Grenade 	 	 	5000
Carnie I 	Kill 5 enemies with a Throwing Knife 	 	 	500
Carnie II 	Kill 15 enemies with a Throwing Knife 	 	 	2500
Carnie III 	Kill 30 enemies with a Throwing Knife 	 	 	5000
It's Personal! 	Hurt an enemy then finish them with a Throwing Knife 	 	 	1000
Did You See That? 	Kill someone with a Throwing Knife while flashed or stunned 	 	 	1000
Claymore Shot I 	Kill 5 enemies with Claymores 	 	 	500
Claymore Shot II 	Kill 15 enemies with Claymores 	 	 	2500
Claymore Shot III 	Kill 30 enemies with Claymores 	 	 	5000
Solid Steel I 	Survive 10 explosions while using Blast Shield 	 	 	500
Solid Steel II 	Survive 25 explosions while using Blast Shield 	 	 	2500
Solid Steel III 	Survive 50 explosions while using Blast Shield 	 	 	5000
C4 Shot I 	Kill 5 enemies by using C4 	 	 	500
C4 Shot II 	Kill 15 enemies by using C4 	 	 	2500
C4 Shot III 	Kill 30 enemies by using C4 	 	 	5000
==Basic Training - Section unlocked at Level 6==
Challenge 	How To Complete 	Title & Gear Unlock 	Emblem Unlock	XP Reward
Ghillie in the Mist I 	Get 50 one-shot kills with sniper rifles 	& Arctic Ghillie Camouflage	 	1000
Ghillie in the Mist II 	Get 100 one-shot kills with sniper rifles 	& Urban Ghillie Camouflage 	 	2500
Ghillie in the Mist III	Get 200 one-shot kills with sniper rifles 	& Desert Ghillie Camouflage	 	5000
Crouch Shot I 	Kill 5 enemies while you are crouching 	 	 	500
Crouch Shot II 	Kill 15 enemies while you are crouching 	 	 	1000
Crouch Shot III 	Kill 30 enemies while you are crouching 	 	 	2500
Prone Shot I 	Kill 5 enemies while you are prone 	 	 	500
Prone Shot II 	Kill 15 enemies while you are prone 	 	 	1000
Prone Shot III 	Kill 30 enemies while you are prone 	 	 	2500
Point Guard I 	Get 5 assists 	 	 	500
Point Guard II 	Get 15 assists 	 	 	1000
Point Guard III 	Get 30 assists 	 	 	2500
X-Ray Vision I 	Kill 2 enemies through a surface using bullet penetration 	 	 	500
X-Ray Vision II 	Kill 5 enemies through a surface using bullet penetration 	 	 	1000
X-Ray Vision III 	Kill 15 enemies through a surface using bullet penetration	 	 	2500
Backdraft I 	Destroy 2 enemy devices 	 	 	500
Backdraft II 	Destroy 5 enemy devices 	 	 	1000
Backdraft III 	Destroy 15 enemy devices 	 	 	2500
Flyswatter 	Shoot down an enemy helicopter 	 	 	1000
Vandalism 	Destroy a car 	 	 	750
Goodbye 	Fall 30 feet or more to your death 	 	 	500
Base Jump 	Fall 15 feet or more and survive 	 	 	750
== Operations - Section unlocked at Level 10==
Asterisk (*) = Challenge unlocked at Level 11
Challenge 	How To Complete 	Title Unlock	Emblem Unlock	XP Reward
Free-for-all Victor I 	Place top-3 in 3 Free-for-all matches 	 	 	500
Free-for-all Victor II 	Place top-3 in 5 Free-for-all matches 	 	 	1000
Free-for-all Victor III 	Place top-3 in 10 Free-for-all matches 	 	 	2500
Team Player I 	Win 5 Team Deathmatch matches 	 	 	500
Team Player II 	Win 15 Team Deathmatch matches 	 	 	1000
Team Player III 	Win 30 Team Deathmatch matches 	 	 	2500
MVP Team Deathmatch 	Play Team Deathmatch and get the top score overall 	 	 	1000
Search and Destroy Victor I 	Win 5 Search and Destroy matches 	 	 	500
Search and Destroy Victor II 	Win 15 Search and Destroy matches 	 	 	1000
Search and Destroy Victor III	Win 30 Search and Destroy matches 	 	 	2500
Hardcore Team Player I 	Win 1 Hardcore Team Deathmatch match 	 	 	500
Hardcore Team Player II 	Win 5 Hardcore Team Deathmatch matches 	 	 	1000
Hardcore Team Player III 	Win 15 Hardcore Team Deathmatch matches 	 	 	2500
Sabotage Victor I 	Win 5 Sabotage matches 	 	 	500
Sabotage Victor II 	Win 20 Sabotage matches 	 	 	1000
Sabotage Victor III 	Win 50 Sabotage matches 	 	 	2500
*MVP Team Hardcore 	Win a Team Hardcore match with the top score 	 	 	1000
*Bomb Down 	Kill a bomb carrier in Sabotage or Search and Destroy	 	 	1000
*Saboteur I 	Plant 2 bombs 	 	 	500
*Saboteur II 	Plant 10 bombs 	 	 	1000
*Bomb Defender I 	Kill 3 enemies while they are defusing the bomb 	 	 	500
*Bomb Defender II 	Kill 10 enemies while they are defusing the bomb 	 	 	1000
*Bomb Prevention I 	Kill 3 enemies while they are planting the bomb 	 	 	500
*Bomb Prevention II 	Kill 10 enemies while they are planting the bomb 	 	 	1000
*Defuser I 	Defuse 2 bombs 	 	 	500
*Defuser II 	Defuse 10 bombs 	 	 	1000
*Last Man Standing 	Be the last man standing in Search and Destroy 	 	 	1000
== Killstreak - Section unlocked at Level 16 ==
NOTE:Kills got with the initial airstrike from Harrier strike count towards Precision Airstrike challenges instead of Harrier challenges. 
Asterisk (*) = Challenge unlocked at Level 21
Challenge 	How To Complete 	Title Unlock	Emblem Unlock	XP Reward
Exposed I 	Call in 5 UAVs 	 	 	1000
Exposed II 	Call in 25 UAVs 	 	 	2500
Exposed III 	Call in 50 UAVs 	 	 	5000
Air Mail I 	Call in 5 Care Packages 	 	 	1000
Air Mail II 	Call in 25 Care Packages 	 	 	2500
Air Mail III 	Call in 50 Care Packages 	 	 	5000
Interference I 	Call in 5 Counter-UAV's 	 	 	1000
Interference II 	Call in 25 Counter-UAV's 	 	 	2500
Interference III 	Call in 50 Counter-UAV's 	 	 	5000
Sentry Veteran I 	Call in 5 Sentry Guns 	 	 	1000
Sentry Veteran II 	Call in 25 Sentry Guns 	 	 	2500
Sentry Veteran III 	Call in 50 Sentry Guns 	 	 	5000
Air To Ground I 	Call in 5 Predator Missiles 	 	 	1500
Air To Ground II 	Call in 25 Predator Missiles 	 	 	2500
Air To Ground III 	Call in 50 Predator Missiles 	 	 	5000
Airstrike Veteran I 	Call in 5 Precision Airstrikes 	 	 	1500
Airstrike Veteran II 	Call in 25 Precision Airstrikes 	 	 	3000
Airstrike Veteran III 	Call in 50 Precision Airstrikes 	 	 	6000
Vertical Takeoff I 	Call in 5 Harrier Strikes 	 	 	1500
Vertical Takeoff II 	Call in 25 Harrier Strikes 	 	 	3000
Vertical Takeoff III 	Call in 50 Harrier Strikes 	 	 	6000
Attack Helicopter Veteran I 	Call in 5 Attack Helicopters 	 	 	1500
Attack Helicopter Veteran II 	Call in 25 Attack Helicopters 	 	 	3000
Attack Helicopter Veteran III	Call in 50 Attack Helicopters 	 	 	6000
Special Delivery I 	Call in 3 Emergency Airdrops 	 	 	1500
Special Delivery II 	Call in 10 Emergency Airdrops 	 	 	3000
Special Delivery III 	Call in 25 Emergency Airdrops 	 	 	6000
21 Ton Giant I 	Call in 3 Pave Lows 	 	 	1500
21 Ton Giant II 	Call in 10 Pave Lows 	 	 	3000
21 Ton Giant III 	Call in 25 Pave Lows 	 	 	6000
*Stealth Bomber Veteran I 	Call in 3 Stealth Bombers 	 	 	1500
*Stealth Bomber Veteran II 	Call in 10 Stealth Bombers 	 	 	3000
*Stealth Bomber Veteran III 	Call in 25 Stealth Bombers 	 	 	6000
*Chopper Gunner Veteran I 	Call in 3 Chopper Gunners 	 	 	2500
*Chopper Gunner Veteran II 	Call in 10 Chopper Gunners 	 	 	5000
*Chopper Gunner Veteran III 	Call in 25 Chopper Gunners 	 	 	10000
*AC-130 Veteran I 	Call in 3 AC-130s 	 	 	2500
*AC-130 Veteran II 	Call in 10 AC-130s 	 	 	5000
*AC-130 Veteran III 	Call in 25 AC-130s 	 	 	10000
*Blackout I 	Call in 2 EMPs 	 	 	2500
*Blackout II 	Call in 5 EMPs 	 	 	5000
*Blackout III 	Call in 10 EMPs 	 	 	10000
*End Game I 	Call in 2 Nukes 	 	 	5000
*End Game II 	Call in 5 Nukes 	 	 	10000
*End Game III 	Call in 10 Nukes 	 	 	10000
*Radar Inbound I 	Call in 50 UAVs or Counter-UAVs 	 	 	2500
*Radar Inbound II 	Call in 100 UAVs or Counter-UAVs 	 	 	5000
*Radar Inbound III 	Call in 1000 UAVs or Counter-UAVs 	 	 	10000
*Airstrike Inbound I 	Call in 50 Precision, Stealth, or Harrier Airstrikes 	 	 	2500
*Airstrike Inbound II 	Call in 100 Precision, Stealth, or Harrier Airstrikes 	 	 	5000
*Airstrike Inbound III 	Call in 1000 Precision, Stealth, or Harrier Airstrikes 	 	 	10000
*Helicopter Inbound I 	Call in 50 Armed Helicopters 	 	 	2500
*Helicopter Inbound II 	Call in 100 Armed Helicopters 	 	 	5000
*Helicopter Inbound III 	Call in 1000 Armed Helicopters 	 	 	10000
*Airdrop Inbound I 	Call in 50 Care Packages, Sentry Guns, or Emergency Airdrops 	 	 	2500
*Airdrop Inbound II 	Call in 100 Care Packages, Sentry Guns, or Emergency Airdrops 	 	 	5000
*Airdrop Inbound III 	Call in 1000 Care Packages, Sentry Guns, or Emergency Airdrops	 	 	10000
== Precision - Section unlocked at Level 26 ==
Asterisk (*) = Challenge unlocked at Level 31
Challenge 	How To Complete 	Title Unlock	Emblem Unlock	XP Reward
Assault Expert I 	Kill 5 enemies with headshots while using an assault rifle 	 	 	2000
Assault Expert II 	Kill 25 enemies with headshots while using an assault rifle 	 	 	5000
Assault Expert III	Kill 50 enemies with headshots while using an assault rifle 	 	 	10000
SMG Expert I 	Kill 5 enemies with headshots while using an SMG 	 	 	2000
SMG Expert II 	Kill 25 enemies with headshots while using an SMG 	 	 	5000
SMG Expert III 	Kill 50 enemies with headshots while using an SMG 	 	 	10000
LMG Expert I 	Kill 5 enemies with headshots while using an LMG 	 	 	2000
LMG Expert II 	Kill 25 enemies with headshots while using an LMG 	 	 	5000
LMG Expert III 	Kill 50 enemies with headshots while using an LMG 	 	 	10000
The Surgical 	Fire an entire Assault Rifle Mag into an enemy without missing 	 	 	2000
Mach 5 	Fire an entire SMG Mag into an enemy without missing 	 	 	2000
Dictator 	Fire an entire LMG Mag into an enemy without missing 	 	 	2000
Perfectionist 	Fire an entire Sniper Mag into an enemy without missing 	 	 	2000
*Multi-RPG I 	Kill 2 or more enemies with a single AT4 or RPG rocket 5 times 	 	 	2000
*Multi-RPG II 	Kill 2 or more enemies with a single AT4 or RPG rocket 25 times 	 	 	5000
*Multi-RPG III 	Kill 2 or more enemies with a single AT4 or RPG rocket 50 times 	 	 	10000
*Clay More I 	Kill 2 or more enemies with a single Claymore 5 times 	 	 	2000
*Clay More II 	Kill 2 or more enemies with a single Claymore 25 times 	 	 	5000
*Clay More III 	Kill 2 or more enemies with a single Claymore 50 times 	 	 	10000
*Multi-Frag I 	Kill 2 or more enemies with a single Frag Grenade 5 times 	 	 	2000
*Multi-Frag II 	Kill 2 or more enemies with a single Frag Grenade 25 times 	 	 	5000
*Multi-Frag III 	Kill 2 or more enemies with a single Frag Grenade 50 times 	 	 	10000
*Multi-C4 I 	Kill 2 or more enemies with C4 5 times 	 	 	2000
*Multi-C4 II 	Kill 2 or more enemies with C4 25 times 	 	 	5000
*Multi-C4 III 	Kill 2 or more enemies with C4 50 times 	 	 	10000
*Collateral Damage	Kill 2 or more enemies with a single sniper rifle bullet 	 	 	2000
*Flawless 	Play an entire match without dying 	 	 	2000
*Fearless 	Kill 10 enemies in a single match without dying 	 	 	2000
*Group Hug 	Kill multiple enemies with a Semtex Grenade stuck to one of them	 	 	2000
*NBK 	Get 3 longshot kills in one life 	 	 	2000
*All Pro 	2 headshots with 1 bullet 	 	 	2000
*Airborne 	Get a 2 kill streak with bullets while in mid-air 	 	 	2000
== Finishing Moves - Section unlocked at Level 35 ==
Asterisk (*) = Challenge unlocked at Level 37
Challenge 	How To Complete 	Title Unlock	Emblem Unlock	XP Reward
Droppin' Crates 	Get a game winning Killcam by dropping a crate on the enemy 	 	 	2500
Absentee Killer 	Get a game winning Killcam with a Sentry Gun 	 	 	2500
Dronekiller 	Get a game winning Killcam with a Predator Missile 	 	 	2500
Finishing Touch 	Get a game winning Killcam with a Precision Airstrike 	 	 	2500
True Liar 	Get a game winning Killcam with a Harrier 	 	 	2500
OG 	Get a game winning Killcam with an Attack Helicopter 	 	 	2500
Transformer 	Get a game winning Killcam with a Pave Low 	 	 	2500
Techno Killer 	Get a game winning Killcam with a Stealth Bomber 	 	 	2500
*Hi Def 	Get a game winning Killcam with a Chopper Gunner 	 	 	2500
*Death From Above	Get a game winning Killcam with an AC-130 	 	 	2500
*Unbelievable 	Get a game winning Killcam with a Throwing Knife kill 	 	 	2500
*Owned 	Get a game winning Killcam with a Riot Shield melee kill 	 	 	2500
*Stickman 	Stick a Semtex Grenade to the enemy in a game winning Killcam 	 	 	2500
*Last Resort 	Get a game winning Killcam while in either Last Stand or Final Stand	 	 	2500
== Humiliation - Section unlocked at Level 41 ==
Asterisk (*) = Challenge unlocked at Level 43
Challenge 	How To Complete 	Title Unlock	Emblem Unlock	XP Reward
Hot Potato I 	Kill 5 enemies with thrown back grenades 	 	 	5000
Hot Potato II 	Kill 10 enemies with thrown back grenades 	 	 	5000
Car Bomb I 	Kill 5 enemies by destroying cars 	 	 	3000
Car Bomb II 	Kill 10 enemies by destroying cars 	 	 	5000
Backstabber 	Stab an enemy in the back with your knife 	 	 	3000
Slow But Sure 	Kill an enemy while being stunned by a stun grenade 	 	 	3000
Misery Loves Company	Kill yourself & 1 enemy by cooking a grenade without throwing it 	 	 	3000
Ouch 	Kill an enemy with a rifle-mounted grenade launcher without detonation. (direct impact)	 	 	3000
Rival 	Kill the same enemy 5 times in a single match 	 	 	3000
Cruelty 	Kill an enemy, pick up his weapon, and then kill him again with his own weapon 	 	 	3000
*Think Fast 	Finish an enemy off by hitting them with a frag grenade 	 	 	3000
*Think Fast Stun 	Finish an enemy off by hitting them with a stun grenade 	 	 	3000
*Think Fast Flash 	Finish an enemy off by hitting them with a flashbang 	 	 	3000
*Return to Sender 	Kill an enemy by shooting their own explosive 	 	 	3000
*Blindfire 	Kill an enemy while you are still dazed by a flashbang 	 	 	3000
*Hard Landing 	Kill an enemy that is in mid-air (can be done by shooting somebody who is climbing) 	 	 	3000
*Extreme Cruelty 	Kill every member of the enemy team without dying 	 	 	3000
*Tango Down 	Kill every member of the enemy team 	 	 	3000
*Counter MVP 	Kill the #1 player on the enemy team 10 times in a single match 	 	 	3000
== Payback - Section unlocked at Level 47 ==
Challenge 	How To Complete 	Title Unlock	Emblem Unlock	XP Reward
Time is Money I 	Get payback 5 times with Semtex 	 	 	3500
Time is Money II 	Get payback 25 times with Semtex 	 	 	10000
I'm Rich! I 	Get payback 5 times with C4 	 	 	3500
I'm Rich! II 	Get payback 25 times with C4 	 	 	10000
Color of Money I 	Get payback 5 times with headshots 	 	 	3500
Color of Money II 	Get payback 25 times with headshots 	 	 	10000
Robin Hood I 	Get payback 5 times while in Last Stand 	 	 	3500
Robin Hood II 	Get payback 25 times while in Last Stand 	 	 	10000
Bang for your Buck I 	Get payback 5 times with frag grenades 	 	 	3500
Bang for your Buck II	Get payback 25 times with frag grenades 	 	 	10000
Overdraft 	Get a payback that sticks to the victim 	 	 	3500
Identity Thief 	Get a payback with the killer's copycat class	 	 	3500
ATM 	Get a payback with a throwing knife 	 	 	3500
Money Shot 	Get a payback in the game winning killcam 	 	 	3500
Break the Bank 	Get a payback with a claymore 	 	 	3500
== Elite - Section unlocked at Level 53 ==
Asterisk (*) = Challenge unlocked at Level 57
Challenge 	How To Complete 	Title Unlock	Emblem Unlock	XP Reward
Master Chef I 	Kill 5 enemies with cooked grenades 	 	 	2500
Master Chef II 	Kill 10 enemies with cooked grenades 	 	 	5000
Master Chef III 	Kill 20 enemies with cooked grenades 	 	 	10000
Counter Claymore I 	Kill 3 enemies by shooting a Claymore 	 	 	2500
Counter Claymore II 	Kill 10 enemies by shooting a Claymore 	 	 	5000
Counter Claymore III	Kill 20 enemies by shooting a Claymore 	 	 	10000
Counter C4 I 	Kill 3 enemies by shooting C4 	 	 	2500
Counter C4 II 	Kill 10 enemies by shooting C4 	 	 	5000
Counter C4 III 	Kill 20 enemies by shooting C4 	 	 	10000
The Brink 	Get a 3 or more kill streak while near death 	 	 	4500
Fast Swap 	Hurt an enemy with primary weapon, then finish them off with a pistol 	 	 	4500
Star Player 	Finish a game of any type with a 5:1 kill/death ratio 	 	 	4500
How the? 	Kill an enemy using bullet penetration to shoot explosive device through the wall 	 	 	4500
Dominos 	Kill an enemy by setting off a chain reaction of explosives 	 	 	4500
Invincible 	
Recover from 5 health regenerations in a row 	 	 	4500
Survivalist 	Survive for 5 minutes straight without dying 	 	 	4500
*Enemy of the State 	Kill three opposing players while being the only player alive on your team 	 	 	4500
*The Resourceful 	Kill an enemy by sticking a semtex to a teammate 	 	 	4500
*The Survivor 	Get a knife kill when all the ammo in your primary weapon's current magazine is empty	 	 	
== Intimidation - Section unlocked at Level 61 ==
Asterisk (*) = Challenge unlocked at Level 64
Challenge 	How To Complete 	Title Unlock	Emblem Unlock	XP Reward
Omnicide 	Kill the entire enemy team within 10 seconds 	 	 	5000
Wargasm 	Earn all 3 of your killstreak rewards within 20 seconds 	 	 	3500
The Bigger They Are 	Kill the top player 3 times in a row 	 	 	2500
The Harder They Fall	Kill the top player 5 times in a row 	 	 	5000
Crab Meat 	Kill 10 enemies with a single killstreak 	 	 	7500
Ultimate Sacrifice 	Nuke the enemy while your team is losing 	 	 	10000
The Denier 	Kill an enemy just before they earn a 10 or higher killstreak reward	 	 	5000
Carpet Bomb 	Kill 5 enemies with a single airstrike 	 	 	5000
*Red Carpet 	Kill 6 enemies with a single Stealth Bomber 	 	 	5000
*Grim Reaper 	Kill 5 enemies with a single predator missile 	 	 	5000
*No Secrets 	Call in a UAV 3 times in a single match 	 	 	2500
*Sunblock 	Call in a Counter UAV 3 times in a single match 	 	 	2500
*Afterburner 	Call in an airstrike 2 times in a single match 	 	 	2500
*Air Superiority 	Call in an Attack Helicopter 2 times in a single match 	 	 	2500
*MG Master 	Get a 5 kill streak with a mounted machine gun 	 	 	2500
*Slasher 	Get a 3 melee kill streak without dying 	 	 	3500
Note: Many of the "Kill X enemies with a single killstreak" challenges can be achieved by getting a multi-kill using guns or equipment then very quickly getting another multi-kill using the killstreak such that both multi-kills add up to X.
== Prestige ==
These challenges are unlocked after Prestiging once. All of the challenges related to killstreaks carry over into the next levels of prestige, whereas the "Heads Up!" and the last five challenges (Knife Veteran, Last Stand Veteran, Stealth, Stun Veteran, and Flashbang Veteran) reset after each prestige.
Challenge 	How To Complete 	Title Unlock	Emblem Unlock	XP Reward
Heads Up! 	Kill an enemy by dropping a crate on them 	 	 	2500
Look! No hands! I 	Get 50 kills with a Sentry Gun 	 	 	2500
Look! No hands! II 	Get 250 kills with a Sentry Gun 	 	 	5000
Look! No hands! III 	Get 500 kills with a Sentry Gun 	 	 	10000
Look! No hands! IV 	Get 1000 kills with a Sentry Gun 	 	 	10000
Predator I 	Get 50 kills with a Predator Missile 	 	 	2500
Predator II 	Get 250 kills with a Predator Missile 	 	 	5000
Predator III 	Get 500 kills with a Predator Missile 	 	 	10000
Predator IV 	Get 1000 kills with a Predator Missile 	 	 	10000
Carpet Bomber I 	Get 50 kills with a Precision Airstrike 	 	 	2500
Carpet Bomber II 	Get 250 kills with a Precision Airstrike 	 	 	5000
Carpet Bomber III 	Get 500 kills with a Precision Airstrike 	 	 	10000
Carpet Bomber IV 	Get 1000 kills with a Precision Airstrike 	 	 	10000
You're Fired I 	Get 50 kills with a Harrier 	 	 	2500
You're Fired II 	Get 250 kills with a Harrier 	 	 	5000
You're Fired III 	Get 500 kills with a Harrier 	 	 	10000
You're Fired IV 	Get 1000 kills with a Harrier 	 	 	10000
Chopper Veteran I 	Get 50 kills with an Attack Helicopter 	 	 	2500
Chopper Veteran II 	Get 250 kills with an Attack Helicopter 	 	 	5000
Chopper Veteran III 	Get 500 kills with an Attack Helicopter 	 	 	10000
Chopper Veteran IV 	Get 1000 kills with an Attack Helicopter 	 	 	10000
Jolly Green Giant I 	Get 50 kills with a Pave Low 	 	 	2500
Jolly Green Giant II 	Get 250 kills with a Pave Low 	 	 	5000
Jolly Green Giant III 	Get 500 kills with a Pave Low 	 	 	10000
Jolly Green Giant IV 	Get 1000 kills with a Pave Low 	 	 	10000
The Spirit I 	Get 50 kills with a Stealth Bomber 	 	 	2500
The Spirit II 	Get 250 kills with a Stealth Bomber 	 	 	5000
The Spirit III 	Get 500 kills with a Stealth Bomber 	 	 	10000
The Spirit IV 	Get 1000 kills with a Stealth Bomber 	 	 	10000
Cobra Commander I 	Get 50 kills as a Chopper Gunner 	 	 	2500
Cobra Commander II 	Get 250 kills as a Chopper Gunner 	 	 	5000
Cobra Commander III 	Get 500 kills as a Chopper Gunner 	 	 	10000
Cobra Commander IV 	Get 1000 kills as a Chopper Gunner 	 	 	10000
Spectre I 	Get 50 kills with an AC-130 	 	 	2500
Spectre II 	Get 250 kills with an AC-130 	 	 	5000
Spectre III 	Get 500 kills with an AC-130 	 	 	10000
Spectre IV 	Get 1000 kills with an AC-130 	 	 	10000
Knife Veteran I 	Kill 10 enemies with a melee attack 	 	 	2500
Knife Veteran II 	Kill 50 enemies with a melee attack 	 	 	5000
Knife Veteran III 	Kill 100 enemies with a melee attack 	 	 	10000
Knife Veteran IV 	Kill 250 enemies with a melee attack 	 	 	10000
Last Stand Veteran I 	Kill 5 enemies while in Last Stand 	 	 	2500
Last Stand Veteran II 	Kill 15 enemies while in Last Stand 	 	 	5000
Last Stand Veteran III	Kill 50 enemies while in Last Stand 	 	 	10000
Last Stand Veteran IV 	Kill 100 enemies while in Last Stand 	 	 	10000
Stealth I 	Kill 10 enemies while using a silenced weapon 	 	 	2500
Stealth II 	Kill 25 enemies while using a silenced weapon 	 	 	5000
Stealth III 	Kill 50 enemies while using a silenced weapon 	 	 	10000
Stealth IV 	Kill 1000 enemies while using a silenced weapon	 	 	5000
Stun Veteran I 	Kill 20 enemies still dazed by a Stun Grenade 	 	 	2500
Stun Veteran II 	Kill 75 enemies still dazed by a Stun Grenade 	 	 	5000
Stun Veteran III 	Kill 150 enemies still dazed by a Stun Grenade 	 	 	10000
Stun Veteran IV 	Kill 300 enemies still dazed by a Stun Grenade 	 	 	5000
Flashbang Veteran I 	Kill 20 enemies dazed by a Flashbang 	 	 	2500
Flashbang Veteran II 	Kill 75 enemies dazed by a Flashbang 	 	 	5000
Flashbang Veteran III 	Kill 150 enemies dazed by a Flashbang 	 	 	10000
Flashbang Veteran IV 	Kill 300 enemies dazed by a Flashbang 	 	 	5000
== Hidden/Other ==
These challenges cannot be found in the barracks, but can be completed by playing through multiplayer. These challenges seem to unlock after certain levels, but it is unknown which levels (e.g. Radiation Sickness will not unlock until after level 10). Italics mean unconfirmed names, xp or description. Currently, all of these challenges reset when Prestiging.
Challenge 	How To Complete 	Title Unlock	Emblem Unlock	XP Reward
6fears7 	Select killstreak rewards requiring 7, 8 and 9 kills and earn them all 	 	 	1500
Click Click Boom 	Kill an enemy with C4 while you are in Last or Final Stand 	 	 	3000
Hard to Kill 	Get 2 kills while in Last Stand or Final Stand 	 	 	1000
Heroic 	Capture a domination point while in Last Stand 	 	 	1000
Hijacker I 	Steal 10 enemy Care Packages 	 	 	1000
Hijacker II 	Steal 50 enemy Care Packages 	 	 	3000
Hijacker III 	Steal 200 enemy Care Packages 	 	 	5000
Infected 	Get knifed by an enemy wearing this title 	 	 	1000
Living Dead 	Survive in Final Stand long enough to get back up 	 	 	1000
Martyrdoh! 	Kill an enemy who is cooking a grenade. or stun yourself with your own stun grenade	 	 	1000
Martyr 	Get a kill with a Martyrdom grenade 	 	 	1000
Never Forget 	Get hurt by an enemy, survive and backstab the same enemy 	 	 	3500
Ninja Defuse 	Defuse a bomb right after it is planted while the planter is still alive. 	 	 	1000
Radiation Sickness 	Get nuked by the enemy 	 	 	1000
Renaissance Man 	Kill 3 enemies with 3 different weapons in a single life 	 	 	1000
Sidekick 	Three kills with your secondary weapon in one life 	 	 	1000
STD 	Knife someone wearing this title 	 	 	1000
The Avenger 	Avenge the death of 3 teammates in one life 	 	 	
The Edge I 	Get the game-winning killcam 5 times 	 	 	1000
The Edge II 	Get the game-winning killcam 10 times 	 	 	5000
The Edge III 	Get the game-winning killcam 20 times 	 	 	10000
The Loner 	Get a 10 kill streak with no killstreak rewards selected 	 	 	2500
Totally Numb 	Take enough damage that would normally kill you with Painkiller active 	 	 	1000
...With A Vengeance 	Avenge a fallen teammate 	 	 	1000
Weapons of Mass Distraction	Get winning kill after nuke has been called in (before detonation) 	 	 	7500
Category:Call of Duty: Modern Warfare 2 Multiplayer Challenges
Category:Challenges per game