- Hear '115' song by Elena Siegman in 'Kino Der Toten' map
In the 'Kino Der Toten' map in Zombies mode, find the three meteors throughout the map. The first meteor is located on a pedestal in a corner behind the soda in the main lobby. The second meteor is on a pedestal in the dressing room near some mannequins. The third meteor is the room upstairs near the alleyway, on a dresser with black marquee letters. The meteors appear as red veined rocks. Keep pushed [Action] on each meteor until your character says something or the veins in the rock glow red. After all three meteors are found, the song '115' by Elena Siegman will play.

- Activate Cheats
At the main menu, use the Right Analog-stick to look down at your hand and see you are locked up. Repeatedly press L2 + R2 to escape from the chair (unlocks the 'Just Ask Me Nicely' secret trophy). After breaking free, move around to the area behind your chair to find an old computer terminal you can use to access the Central Intelligence Agency Data System. Type one of the following codes to access early unlockables and hidden features in the game. Notice: You can also plug a USB keyboard into your PlayStation 3 to enter the codes and play the Zork text-based adventure game.

Display contents of current directory Enter 'DIR' or 'LS' as a code to display the contents of the current directory.
Alicia game Enter 'ALICIA' as a code to unlock the Alicia virtual therapist game.
Open mail folder for current user Enter 'MAIL' as a code to open the mail folder for the current user.
Dead Ops Arcade game Enter 'DOA' as a code to unlock the Dead Ops Arcade game, which is a zombie killing mini-game similar to Smash TV. Use the Left Analog-stick to move and the Right Analog-stick to shoot. Notice	Play the Dead Ops Arcade game to get the 'Insert Coin' trophy.
Display all commands Enter 'HELP' as a code to display a list of system commands in the terminal and Pentagon user e-mail access.
Mission select, 'Five' Zombies mode map, Dead Ops Arcade game, and Zork game Enter '3ARC UNLOCK' as a code to unlock the 'Five' Zombies mode map, Dead Ops Arcade game, Zork	The Great Underground Empire text-based adventure game, and all missions.
Decode a string using the CIA's cypher Enter 'DECODE' as a code to decode a string using the CIA's cypher.
List audio files and pictures Enter 'DIR' as a code to display a list of audio files and pictures for use with 'CAT' command.
Login Enter 'LOGIN' as a code to login with a corresponding username and password.
Encode a string using the CIA's cypher Enter 'ENCODE' as a code to encode a string using the CIA's cypher.
Open corresponding file Enter 'CAT [filename]' or 'PRINT [filename]' as a code to open the corresponding file.
All Intel Enter '3ARC INTEL' as a code to unlock all Intel. Notice	Enabling this code will prevent the 'Closer Analysis' trophy from being earned.
List of login names Enter 'WHO' as a code to display a list of login names for use with the 'RLOGIN' command (requires passwords).
Zork game Enter 'ZORK' or 'HELLO SAILOR' as a code to unlock the Zork	The Great Underground Empire text-based adventure game. Notice
Display 'Fee Fie Foe Foo!' Enter 'FOOBAR' as a code to display 'Fee Fie Foe Foo!'.

- Gun Game Wager match weapons
The following is a list of all 20 guns in the Gun Game wager match:

17. M72 Law
7. AK74u
15. WA2000
5. MP5K
13. M60
3. Spas-12
8. M14
6. Duel Skorpions
14. L96A1
18. China Lake
1. Python with multiple attachments
9. M16
16. RPG
10. Famas
2. Duel Makarovs
12. HK-21
4. Stakeout
19. Crossbow
11. AUG
20. Ballistic Knife

- Freezing zombies ('Escalation' DLC)
If you lead a group of zombies into the water and keep them in there long enough, it will cause them to freeze for a moment, allowing you to run away or kill them easier.

- Hear 'Sympathy For The Devil' song by The Rolling Stones in 'Nuketown' map
In the Nuketown map, shoot the heads off all the mannequins in under fifteen seconds of the round begginning to hear the song 'Sympathy For The Devil' by The Rolling Stones played over the loudspeakers.

- Finding the Pack-A-Punch on Five map in Zombies mode
Make a crawler, then go into the middle room, and adjust the DEFCON level to DEFCON 5. All teleporters will take you to the Presidential Suite. All switches are in that room; three are upstairs and one is downstairs.

- Hear 'Don't Back Down' song by Eminem in 'Five' map
In the 'Five' map in Zombies mode, find the three red rotary phones throughout the Pentagon that ring and flash. The first phone can be found when you first begin, after opening a set of doors in the corner. The second phone is inside the conference room on the second floor where the Pack-A-Punch machine is located. The third phone is in one of the rooms after leaving the second elevator on the floor that the power is on. You can find the phones by following their ringing. Look at the phone, then keep pushed [Action] until you hear a busy signal. After all phones are accessed, the song 'Don't Back Down' by Eminem will play.

- Hidden Thunder Gun in 'Numbers' mission
At the beginning of Mission 7: Numbers, after the Nova 6 Gas is released, go to the back of the room, and enter the office. Find the tape recorder, and keep pushed [Action] to pick it up. If done correctly, the screen will shake. Continue through the level until you get to the part where you jump off the roof into the building and onto the mattress. Once Clarke is inside, he will move a fridge leading to the weapon stash. You must watch him move the fridge or you will not get the Thunder Gun. Once you get inside the stash, go to the left. You should see another tape recorder. Walk up to it, and keep pushed [Action] to pick it up. If done correctly, the screen will shake and the Thunder Gun will appear from the wall. You can trade the weapon you are keep pusheding for it, and it will be equipped with twelve shots. After you get the Thunder Gun, the rest of the level should be very easy.


In Mission 7: Numbers, after interrogating Clarke, several enemy soldiers will appear at the end of the long hallway. If you shoot all six Nova 6 canisters (two in the back, four on the sides), you can retrieve a cassette tape in the office behind where you begined. Notice: It is recommended that you toss a flashbang to blind the enemies so you can shoot the canisters more easily. Once you pick up the tape, continue progressing through the mission until the part where Weaver and Clarke both jump off the roof and onto a mattress. After they jump down, Clarke will ask Weaver to help him move a fridge out of the way to his first weapon stash. Once they do, go inside, and look to the left. There should be a place to put the cassette. Notice: When picking up and placing the cassette tape, the game will not prompt you to do anything -- you must use this information to know when to do these things. Once you insert the cassette tape, the screen will shake, and the Thunder Gun will appear out of the wall. It has twelve bullets, and it is reloaded at checkpoints.

- Intel locations
Search the indicated locations to find all 42 Intel laptops:

Mission 1: Operation 40



Mission 2: Vorkuta



Mission 3: U.S.D.D.



Mission 4: Executive Order



Mission 5: S.O.G.



Mission 6: The Defector



Mission 7: Numbers



Mission 8: Project Nova



Mission 9: Victor Charlie



Mission 10: Crash Site



Mission 11: WMD



Mission 12: Payback



Mission 13: Rebirth



Mission 14: Revelations



Mission 15: Redemption





- Springing platforms and ziplines in Zombies mode ('Escalation' DLC)
If you want to use either the platforms or zipline, you must first activate the power. Then, you must unlock the area that the platform or zipline ends at or else it will not bring you anywhere. The zipline can be used if there is no notice saying 'Closed set' (indicating that you must unlock it) or 'Power must be on' (power needs to be turned on). Once the zipline is active, jump into it near the edge to use it. The springing platform can be used once the area (lighthouse base) is open, and the power is on. When you stand on it, you will hear a compression sound, and after a moment it will launch you away. Notice: Zombies and George can also use the springing platforms and ziplines.

- Easy 'Rhino' trophy
In the Dead Ops Arcade game, when you get to a higher round (for example, Round 8 or 10), use a meat power-up at the begin of the round. When the zombies pour in, wait a bit, then use the speed power-up to get the 'Rhino' trophy.

- Hiding spot in 'Five' map
In the 'Five' map in Zombies mode, once you go downstairs, stand in front of the larger elevator. While in front of it, go left along the desks next to the teleporter. Stand behind the railing so you can see it long ways. Dolphin dive on top of it. This may require a few attempts. Once you are on top of the railing, stand up, and keep jumping up until you are onto of the teleporter. Zombies cannot touch you unless you get too close to the stairs. You can get a lot of points because the zombies will gather around, and when you shoot at the crowd, it is very hard to miss.

- Dreamland server
Access the Central Intelligence Agency Data System. Enter 'rlogin dreamland' as a command. You will be prompted to login with an account with MJ12 access. Use one of the following usernames and passwords to continue:

Login as T. Walker	Username
Login as Robert Oppen	Username
Login as Vannevar Bush	Username

- Zombie perks ('Escalation' DLC)
The following Zombies mode perks are available in the 'Escalation' DLC: Double Tap, Juggar-naught, Speed Cola, Stamin-Up, Dr. Phlopper, Quick Revive, and Deadshot. The Deadshot perk lets you snap-aim (keep pusheding down your ADS while an enemy is near) to the zombie's head instead of its torso.

- Easy 'Hands Off The Merchandise' trophy
In Round 4 on the 'Five' map in Zombies mode, try to shoot a zombie's legs off so it is crawling around before the round ends, as this will give you time to turn the power on. The Thief shows up randomly after you turn the power on. The strategy used in the video was done in Single Player mode.




- Terminal access
Access the Central Intelligence Agency Data System. Enter 'login' as a command. You will be prompted to login with an account. Use one of the following usernames and passwords to continue. You can then access their documents with the 'dir' command or e-mail with the 'mail' command.

Person	Username	Password
Terrance Brooks	tbrooks	lauren
J. Turner	Jturner	condor75
Adrienne Smith	asmith	roxy
Ryan Jackson	rjackson	saintbridget
Frank Woods	fwoods	philly
John McCone	jmccone	berkley22
Richard Helms	rhelms	lerosey
Alex Mason (default account)	amason	password
Jason Hudson	jhudson	bryant1950
Richard Kain	rkain	sunwu
Vannevar Bush	vbush	manhattan
Joseph Bowman	jbowman	uwd
Grigori 'Greg' Weaver	gweaver	gedeon
T. Walker	twalker	radi0
John F. Kennedy	jfkennedy	lancer
Richard Nixon	rnixon	checkers
D. King	dking	mfk
Bruce Harris	bharris	goskins
William Raborn	wraborn	bromlow
Lyndon B. Johnson	lbjohnson	ladybird

- Multiplayer unlockables
Reach the indicated rank to unlock the corresponding bonus:

Prestige 10	Prestige Hardcore Playlist
Level 6	Clan Tag
Level 28	Custom Lenses
Level 4	Create A Class
Level 22	Camo
Prestige 9	Custom Class 10
Level 31	Facepaint
Level 15	Medal Challenges
Level 50	Prestige Mode
Level 19	Gun Tag
Level 8	Game Mode Challenges
Prestige 11	Additional Face Paint
Prestige 14	Golden Camo
Level 13	Combat Record
Prestige 3	Custom Class 7
Level 5	Contracts
Prestige 7	Custom Class 9
Prestige 13	Clan Tag Colors
Level 10	Killstreaks, Killstreak Challenges, Playercard Emblems
Prestige 1	Prestige Leaderboard, Custom Class 6
Level 25	Custom Reticules
Level 20	Elite Challenges
Level 30	Final Challenges
Prestige 5	Custom Class 8
Level 16	Gun Emblems
Prestige 15	Prestige Pure Playlist

- Easy 'Quiet On The Set' trophy ('Escalation' DLC)
Wait until a zombie drops the 'Death Machine' perk, and be near George when you pick it up. Shoot at him as much as possible. Since the Death Machine has infinite ammunition for a short time, this will deal a lot of damage to Romero. Even if you pull him into the water and he returns to normal, this will still cause damage. It requires a very large amount of damage to defeat him. You do not necessarily need to turn the power on or kill him near the water; just as long as you keep doing damage to him, any weapon will eventually kill him. His light hammer will turn from blue to orange when you are close to defeating him.

- Easy 'Frag Master' trophy
In Campaign mode, during the battle of Khe Sanh when the NVA are pouring out of the tunnels in the background, keep throwing grenades into the crowd until you get the 'Frag Master' trophy.


In Multiplayer mode, have five friends cram together, and then throw a frag grenade to kill them all and get the 'Frag Master' trophy.


In Zombies mode with at least two players, blow the legs off five zombies, and then have another player stand in one place while the zombies crawl towards them. When they are all attacking the other play, throw a frag grenade to kill them all and get the 'Frag Master' trophy.

- Hear 'Abracadavre' song by Elena Siegman in 'Ascension' map ('First Strike' DLC)
In the 'Ascension' map in Zombies mode, there are three teddy bears keep pusheding a sickle. Push Square while standing next to each one, and you will hear a sound. Once you activate all three teddy bears, the 'Abracadavre' song by Elena Siegman will play. The first teddy bear is located to the left of the Olympia shotgun in the begining room. The second one is behind the fence across from where the claymores are bought. The third one is near the lunar lander by the Speed Cola machine.

- Pack-A-Punch weapons
The following is a list of all weapons and what they become once you upgrade them through the Pack-A-Punch machine in Zombies mode:


Assault rifles

FN FAL = EPC WN
Famas = G16-GL35
G11 = G115 Generator
M14 = Mnesia
Galil = Lemantation
AUG = AUG-50M3
Commando = Predator
M16 = SkullCrusher

Handguns

CZ75 = Calamity
CZ75 Dual Wield = Calamity & Jane
M1911 = Mustang & Sally
Python = Cobra

Launchers

China Lake = China Beach
M72 LAW = M72 Anarchy

Light machine guns

HK21 = H115 Oscillator
RPK = R115 Resonator

Shotguns

HS10 = Typhoid & Mary
Olympia = Hades
SPAZ-12 = SPAZ-24
Stakeout = Raid

Sniper rifles

Dragunov = D115 Disassembler
L96A1 = L115 Isolator

Submachine guns

MP40 = The Afterburner
AK47u = AK74fu2
MPL = MPL-LF
MPK5 = MP115 Kollider
PM63 = Tokyo & Rose

Special weapons

Crossbow = Awful Lawton
Ballistic Knife = The Krause Refibrillator
Thundergun = Zeus Cannon
Ray Gun = Porter's X2 Ray Gun
Be victorious inter's Fury = Be victorious inter's Fury

- Clearing the trenches in battle of Khe Sanh
At the battle of Khe Sanh, you are told to clear the trenches, but it is not exactly clear how to do this. You must run to the two giant striped barrels near the bottom of the hill and kick them down into the trench. Hide behind the sandbags, and shoot at the Viet Cong until it is relatively clear. Then, run to the nearby barrel, and follow the prompt to stab it and kick it down the hill.

- Killstreak bonuses
Get the indicated number of consecutive kills in Multiplayer mode to get the corresponding bonus:

Rolling Thunder	8 kills (carpet bombing airstrike)
Counter Spy Plane	4 kills (temporarily disables enemy mini-map)
Blackbird	8 kills (shows both enemy position and direction on the mini-map; cannot be shot down)
SAM Turret	4 kills (airdrop a placeable SAM turret to destroy enemy aircraft)
Napalm Strike	5 kills (aircraft covers an area in Napalm)
RC-XD	3 kills (remote control car strapped with explosives)
Attack Dogs	11 kills (attack dogs that hunt down the enemy)
Sentry Gun	6 kills (airdrop a placeable Sentry Gun)
Valkyrie Rockets	7 kills (launcher with remote controlled rockets)
Chopper Gunner	9 kills (be the gunner of an attack helicopter)
Mortar Team	6 kills (target three locations to bombard with Mortar Strikes)
Spy Plane	3 kills (shows enemies on the mini-map; can be shot down)
Attack Helicopter	7 kills (call in support helicopter)
Care Package	5 kills (airdrop a random killstreak or ammo crate)
Gunship	11 kills (pilot an attack helicopter)

- Easy 'I Hate Monkeys' trophy
In the Rebirth labs, fire the China Lake into the central chamber of the lab. There will be an explosion in the chamber that releases Nova 6 gas that will kill the soldiers and all of the monkeys.

- Trophies
Successfully complete one of the following tasks to get a trophy:

Bronze Trophies
Tough Economy	Use no more than 6 TOW guided missiles to destroy the tanks in the defense of Khe Sanh.
VIP	Receive orders from Lancer.
'Insert Coin'	Access the terminal and battle the forces of the Cosmic Silverback in Dead Ops Arcade.
I hate monkeys	Kill 7 monkeys in under 10 seconds in the Rebirth labs.
Raining Pain	Rack up a bodycount of 20 NVA using air support in Hue City.
Sacrificial Lamb	Kill 6 zombies after getting shot by a Pack-a-Punched Crossbow bolt.
Gamblin' Fool	Finish 5 Wager Matches 'in the money'.
Death to Dictators	Use a single round to bring down Castro.
Unconventional Warfare	Use the explosive bolts to kill 30 enemies.
Slingshot Kid	Destroy all slingshot targets in 3 attempts.
SOG Rules	Retrieve the dossier and the defector from Hue City.
Frag Master	Kill 5 enemies with a single frag grenade.
Up close and personal	Silently take out 3 VC.
Easy Rhino	In Dead Ops Arcade, use a Speed Boost to blast through 20 or more enemies at one time.
Hands Off the Merchandise	Kill the Pentagon thief before it can steal your load-out.
Matinee	Watch a film clip with a friend.
Double Trouble	Use only dual wield weapons to escape Kowloon.
Russian Bar-B-Q	Incinerate 10 enemies with the flamethrower attachment in the POW compound.
Clarity	Crack the code.
Heavy Hand	Use the Grim Reaper to destroy the MG emplacement.
Broken English	Escape Kowloon.
You can do it	Reach rank 10 in Basic Training.
Never get off the boat	Find the Soviet connection in Laos.
Looks don't count	Break the siege in the battle of Khe Sanh.
Double Whammy	Destroy both helicopters with one TOW guided missile from the deck of the ship.
Sacrifice	Ensure your squad escapes safely from Cuba.
Closer Analysis	Find all the hidden intel.
Give me liberty, or give me death	Escape Vorkuta.
Sally Likes Blood	Demonstrate killer economic sensibilities by taking down 3 enemies with a single bullet.
The Dragon Within	Kill 10 NVA with Dragon's Breath rounds.
Some wounds never heal	Escape the past.
A safer place	Sabotage the Soviet space program.
The Acquireor	In Zombies mode, buy every weapon off the walls in a single game.
Silver Trophies
Not Today	Finish 'Crash Site', 'WMD' and 'Payback' on Veteran difficulty.
Cold Warrior	Finish 'Operation 40', 'Vorkuta' and 'Executive Order' on Veteran difficulty.
Down and Dirty	Finish 'SOG' and 'The Defector' on Veteran difficulty.
Vehicular Slaughter	Destroy all enemies on vehicles during the prison break.
No Leaks	Make it through the NOVA 6 gas without dying on Rebirth Island.
Pathfinder	Guide the squad through the Soviet ourpost without them getting killed.
Stand Down	Finish the campaign on any difficulty.
Burn Notice	Finish 'Rebirth' and 'Redemption' on Veteran difficulty.
Lord Nelson	Destroy all targets and structures while making your way up the river.
It's your funeral	Finish 'Numbers', 'Project Nova' and 'Victor Charlie' on Veteran difficulty.
Mr. Black OP	Enter the Soviet relay station undetected.
Light Foot	Escape the ship with 2
With extreme prejudice	Get to the POW compound in the Hind using only rockets.
Gold Trophies
Black Op Master	Finish the campaign on Hardened or Veteran difficulty.
Platinum Trophies
Platinum Trophy	Unlock all other trophies.

Bronze Trophies
See Me, Stab Me, Heal Me	Fire a Pack-a-Punched Ballistic Knife at a downed ally to revive them from a distance.
Just ask me nicely	Break free from the torture chair.
Eaten by a Grue	Play Zork on the terminal.

Bronze Trophies
Chimp on the Barbie	In Ascension, kill a space monkey with a fire trap.
The Eagle Has Landers	In Ascension, escape on all 3 lunar landers.
They Are Going THROUGH!	In Ascension, kill at least 5 zombies with 1 gersh device.
Silver Trophies
Space Race	In Ascension, pack-a-punch a weapon before round 8.

Bronze Trophies
Stuntman	In Call of the Dead, make a zombie explode using the V-R11.
Stand-In	In Call of the Dead, send the crew to Paradise in solo or co-op.
Shooting on Location	In Call of the Dead, kill 10 zombies with one Scavenger shot from over 100 feet away.
Quiet on the Set	In Call of the Dead, cut the lights on the Director.
Silver Trophies
Ensemble Cast	In Call of the Dead, send the crew to Paradise in co-op.

Bronze Trophies
Blinded By the Fright	In Shangri-La, kill a Shrieker zombie while blinded by it.
Zomb Disposal	In Shangri-La, dispose of a Napalm zombie without it harming any players.
Monkey See, Monkey Don't	In Shangri-La, get something from the monkeys.
Small Consolation	In Shangri-La, use the 31-79 JGb215 on each type of zombie.
Silver Trophies
Time Travel Will Tell	In Shangri-La, acquire the focusing stone.

- Weapons and equipment
The following is a list of weapons and equipment:


Assault rifles

G11
FAMAS
Commando
Enfield
Galil
FN FAL
AK-47
AUG
M14
M16

Handguns

ASP
CZ75
.357 Magnum Python
M1911
Makarov

Launchers

M202A1 'Grim Reaper' (Care Package only)
China Lake
M72 LAW
Flamethrower
RPG-7
Strela

Light machine guns

HK-21
M60
Death Machine (Care Package only)
RPK
Stoner 63

Shotguns

Model 1887
Ithica 37
HS-10
Olympia/Double Barrel
KS-23
SPAS-12
Stakeout

Sniper/bolt action rifles

Dragunov
L96AW
PSG1
WA2000

Submachine guns

PM63
MP5K
MAC11
Skorpion
AK74u
MPL
Kilparis
Spectre M4
Uzi

Special secondaries

Ballistic Knife
Crossbow
Flashlight
Machete

Alternate ammo

Explosive tipped crossbow bolts
Incendiary 'Dragon’s Breath' shotgun rounds

Assault rifle attachments

Masterkey (750 CP)
Grenade Launcher (1,000 CP)
Extended Mags (500 CP)
Flamethrower
Red Dot Sight (750 CP)
Infrared Scope (1,000 CP)
ACOG (750 CP)
Dual Mag (500 CP)
Reflex (750 CP)
Suppressor

Handgun attachments

Dual Wield
Snub Nose (750 CP)
ACOG (750 CP)
Speed Reloader (750 CP)
Improved Iron Sights

Equipment

Claymore (3,000 CP)
C4 (2,000 CP)
Jammer (2,500 CP)
Camera Spike (2,000 CP)
Motion Sensor (3,000 CP)
Tactical Insertion (2,500 CP)

Lethal

Frag Grenade
Semtex
Tomahawk

Tactical

Decoy (attracts attention and creates blips on enemy radar)
Flashbang
Concussion
Nova Gas
Willy Pete/Smoke Grenade

Camouflage

Tiger
ERDL
Sahara
Dusty
Red
Flora
Ice
Warsaw
Gold
Siberia
Berlin
Olive
Woodland
Nevada
Yukon

Face paint

Spider
Highlander
Dutch
Sidewinder
Death
Lion
Reaper
Blitz
Jester
Dragon
Sandman
Apache
Stalker
Black Widow
Mantis
Demon
Smoke
Clean
Animal
Ranger
Commando
Tundra
Banshee
Militia
Zulu

Custom reticles

Triangle
Diamond
Arrows with dot
Outer crosshairs
O with crosshairs
Line with dot
Three dots
Dot
O within a circle
Radiation
Square outline
Boxes
O with outer line
Outer triangles
Large crosshairs
Skull
Star
O
X
O with dot
Semicircle
Heart
Diamond outline
Treyarch
Small crosshairs
O with inner line
Arrows horizontal
Square
O with arrows
O with triangles
Burst
X with dot
Arrows vertical
Smiley
Yin yang

- Overcomeing George the director in Zombies mode ('Escalation' DLC)
It is recommended you do not fight George the director until you obtain the new Wonder Weapon and upgrade it through Pack-A-Punch, as you will not be able to kill him without it. Shooting him, blowing him up, and even knifing him will cause him to roar in fury, then charge at full sprint after you and your allies until everyone is dead. If this happens, you can lead him to any large body of water to calm him down. Additionally, the power must be active before you can damage him.

- Perks
The following is a list of perks and their effect. Successfully complete the indicated challenges to unlock the pro version of the corresponding perk.


Tier 1


Lightweight

Lightweight	Move faster
Lightweight Pro	Move faster, and no fall damage

Challenges

Escape Death	Escape death 5 times after being hurt.
Melee Kills	Get 15 melee kills.
Offense Medals	Get 10 offense medals by killing enemies near their objective.

Scavenger

Scavenger	Replenish ammo and lethal grenades from fallen enemies
Scavenger Pro	Replenish ammo and lethal grenades from fallen enemies, and begin with extra mags and replenish tactical grenades from fallen enemies

Challenges

Grenade Kills	Get 5 lethal grenade kills with a resupplied grenade.
Resupplies	Resupply 150 times while using Scavenger.
Kill Count	Get 5 kills without dying 5 times.

Ghost

Ghost	Remain hidden from enemy spy planes
Ghost Pro	Remain hidden from enemy spy planes, and avoid targeting from aircraft, IR scopes, and Sentry Guns; no red crosshair or name when targeted

Challenges

Destroy Aircraft	Destroy 30 aircraft with any non-killstreak launcher.
Concealed Kills	Kill 20 enemies while they have a spy plane or Blackbird active.
Destroy Sentry Gun	Destroy 1 Sentry Gun.

Flak Jacket

Flak Jacket	Take less explosive damage
Flak Jacket Pro	Take less explosive damage, and deflect fire damage and safely toss back frag grenades

Challenges

Demolished	Plant or defuse 10 bombs in Demolition, Sabotage, or Search & Destroy.
Protected	Survive 10 explosions while using Flack Jacket.
Throwbacks	Throw back 5 enemy frag grenades.

Hardline

Hardline	Get killstreak rewards with one less kill
Hardline Pro	Get killstreak rewards with one less kill, and change the contents of a care package

Challenges

Multiple Killstreaks	Get 7 killstreaks in one match while using Hardline.
Share Packages	Share 10 Killstreak reward crates with teammates.
Killstreak	Get 7 kills without dying in one match.

Tier 2


Hardened

Hardened	Penetrate walls and objects with deeper bullet impact
Hardened Pro	Penetrate walls and objects with deeper bullet impact, and inflict extra bullet damage on aircraft and turrets, and flinch less when shot

Challenges

Bullets in Aircraft	Shoot 200 bullets into enemy aircraft.
Penetration Kills	Get 10 kills using Hardened and shooting through walls.
Equipment Shot	Destroy 1 piece of enemy equipment through a wall.

Scout

Scout	Keep pushed breath longer when scoped
Scout Pro	Keep pushed breath longer when scoped, and switch weapons faster

Challenges

One Shot Kills	Get 50 'One Shot, One Kill' medals.
Secondary Kills	Get 50 kills with secondary weapons.
Headshots	Get 30 headshot kills.

Steady Aim

Steady Aim	Maintain increased accuracy when firing from the hip
Steady Aim Pro	Maintain increased accuracy when firing from the hip, and aim faster after sprinting, and recover quickly from knife lunges

Challenges

Sprint Kills	Get 100 kills after sprinting.
Quick Melee	Melee two enemies consecutively within 5 seconds.
Hip Fire Kills	Get 150 hip fire kills using Steady Aim.

Sleight Of Hand

Sleight Of Hand	Reload weapons faster
Sleight Of Hand Pro	Reload weapons faster, and aim down sights faster with all weapons, except sniper rifles

Challenges

Reload Kills	Kill an enemy within 5 seconds of reloading 30 times.
Aiming Kills	Get 150 kills while aiming down sights.
Fast Hand Kills	Reload and finish off the enemy you wounded 10 times.

Warlord

Warlord	Equip two attachments to your primary weapon (excluding underbarrels)
Warlord Pro	Equip two attachments to your primary weapon (excluding underbarrels), and begin with one extra tactical and lethal grenade, except Willy Pete

Challenges

Grenade Kills	Get 10 Frag or Semtex kills.
Two Attachment Kills	Get 150 kills using a gun with two attachments.
Grenade Multi-kills	Get 1 multi-kill with Frag or Semtex.

Tier 3


Tactical Mask

Tactical Mask	Protect yourself against Nova Gas
Tactical Mask Pro	Protect yourself against Nova Gas, and reduce the effects of Flash and Concussion grenades, and reveal the position of a flashed or stunned enemy

Challenges

Concussion Kills	Kill 20 enemies that are stunned by your Concussion grenade.
Flash Kills	Kill 20 enemies that are blinded by your Flashbang grenade.
Nova Gas Kills	Kill 20 enemies poisoned by your Nova Gas.

Marathon

Marathon	Sprint for a longer duration
Marathon Pro	Sprint for a longer duration, and sprint for an unlimited duration

Challenges

First Blood	Get the 'First Blood' medal 10 times.
26 Miles	Sprint 26 miles using Marathon.
Captures	In Capture The Flag, get the 'Flag Capture' medal 15 times while using Marathon.

Ninja

Ninja	Move silently
Ninja Pro	Move silently, and make no noise at all and hear enemies louder

Challenges

Back Stabs	Get 5 'Backstabber' medals.
Silenced Kills	Get 150 kills using the Suppressor attachment.
Plants	Plant the bomb 10 times in Demolition, Sabotage, or Search & Destroy.

Second Chance

Second Chance	Pull out your pistol before dying
Second Chance Pro	Pull out your pistol before dying, and survive longer and get revived by your teammates

Challenges

Revenge	While in Second Chance, kill the enemy who downed you 5 times.
Kills	Get 10 kills while in Second Chance.
Headshot	Get 1 headshot kill while in Second Chance.

Hacker

Hacker	Detect enemy equipment, explosives, and turrets
Hacker Pro	Detect enemy equipment, explosives, and turrets, and sabotage enemy equipment and turrets, and booby trap stolen crates, and remain invisible to motion sensors

Challenges

Explosive Kills	Kill 25 enemies with a Claymore or C4.
Destroys	Destroy 10 equipment or explosives while using Hacker.
Near Equipment Kills	Kill 25 enemies within the radius of your Jammer or Motion Sensor.

- Power box location in Zombies mode ('Escalation' DLC)
The power switch is located on the half-sunken ship to your right when you begin. The boat that covers the entrance costs 500 points. When you go up the ship's side, continue straight until you see a stairway to your left leading upstairs. It costs 750 points to enter. Once inside, go to either the right or left of the cabin and go inside, where you will find a stairway leading up again. Go up and move around the room to find a door that costs 750 points. Open this door, and the power switch will be to your right when you walk in.

- All Zombie maps
Successfully complete the indicated task to unlock the corresponding Zombies mode map:

Kino Der Toten	Available at the begin. The map description reads 'Battle the undead in this theatrical installment of 'Zombies'. New twists and clues could uncover the final plan. It's show time!'
Five	Successfully complete Campaign mode on any difficulty. The map description reads 'The Pentagon is under attack! Washington is going to DEFCON 1 in this installment of 'Zombies'.'
Shi No Numa	Requires a unique code that is included with the Call Of Duty
Der Riese	Requires a unique code that is included with the Call Of Duty
Nacht Der Untoten	Requires a unique code that is included with the Call Of Duty
Dead Ops Arcade	Play the Dead Ops Arcade game or successfully complete the game. The map description reads 'Step back through time with this retro arcade zombie adventure and do battle with the forces of the Cosmic Silverback.'
Verruckt	Requires a unique code that is included with the Call Of Duty

- Easy points in 'Five' map
In the 'Five' map in Zombies mode, destroy the glass doors at the begin, and then rebuild them for easy points. Let the zombies destroy the barriers and come into the office, and then kill them to earn extra bonuses. Shoot the zombies three to four times in Rounds 1 and 2, and then knife them to get extra points.

- Easy 'Sally Likes Blood' trophy
In Mission 6: The Defector, at the part where you go inside the building with Bowman, Reznov, and Woods (the one where the man is crying over his dead friend), go upstairs. There will be two VC in front of you and three more behind the window next to them. Aim precisely so that you can kill all three of them in one shot. This area is a checkpoint -- so if you miss, kill yourself, and try again.

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