Call of Duty: Modern Warfare 2 (Windows)

Call of Duty: Modern Warfare 2
Also known as: Modern Warfare 2 Developer: Infinity Ward Publishers: Activision, Square Enix (JP) Platform: Windows Released in JP: December 23, 2009 Released in US: November 10, 2009 Released in EU: November 10, 2009 This game has unused areas. This game has unused code. This game has hidden developer credits. This game has unused modes / minigames. This game has unused graphics. This game has unused models. This game has unused cinematics. This game has unused items. This game has unused abilities. This game has unused music. This game has unused sounds. This game has debugging material. This game has a hidden level select. This game has regional differences. This game has revisional differences. This game has a prerelease article

Call of Duty: Modern Warfare 2 is the 2nd entry in the Modern Warfare series as well as the 6th entry in the Call of Duty series. It features a blockbuster-styled singleplayer campaign, a soundtrack composed by Hans Zimmer and Lorne Balfe, and the inability to connect to dedicated servers.

Subpages

Debug Material There are so many debugging options in this game, it has its own subpage.

Unused Sounds An expanding library of audio that isn't used.

Call of Duty 4 Leftovers The amount of leftovers in the game's files is incredible.

Unused Killstreaks

To do: Get the rest of the unused killstreaks. Here is a list of strings this game has (Used and Unused).

Little Bird

In the game files, there a bunch of sounds for an unused killstreak named "Little Bird". By switching the game's languages, you can access the voices recorded in a different language.

The following is code mentioning this killstreak.

precacheHelicopter( "vehicle_little_bird_armed", "cobra" );

makeHeliType( "littlebird", "explosions/aerial_explosion_littlebird_mp", ::defaultLightFX );

addAirExplosion( "littlebird", "explosions/aerial_explosion_littlebird_mp" );

The following strings are used by this killstreak.

Codename	String
MP_EARNED_LITTLEBIRD_SUPPORT	"Press [{+actionslot 4}] for LITTLEBIRD."
PERKS_LITTLEBIRD_SUPPORT	"OH-6 combat support"
PERKS_DESC_LITTLEBIRD_SUPPORT	"2 killstreak for littlebird support."

Predator Airdrop

All that remains of this killstreak are strings.

Codename	String
MP_EARNED_PREDATOR_AIRDROP	"Press [{+actionslot 4}] for PREDATOR AIRDROP."

Super Airstrike

Like the Predator Airdrop, all that remains of this killstreak are strings.

Codename	String
MP_EARNED_SUPER_AIRSTRIKE	"Press [{+actionslot 4}] for SUPER AIRSTRIKE."
KILLSTREAKS_SUPER_AIRSTRIKE	"Super Airstrike"
KILLSTREAKS_SUPER_AIRSTRIKE_DESC	"Airstrike with some extra kick."

Advanced UAV

Like the Super Airstrike and Predator Airdrop, all that remains of this killstreak are strings.

Codename	String
MP_EARNED_DOUBLE_UAV	"Press [{+actionslot 4}] for ADVANCED UAV."
KILLSTREAKS_DOUBLE_UAV	"Advanced UAV"
KILLSTREAKS_DOUBLE_UAV_DESC	"UAV with faster sweep time."

Helicopter Blackbox

Like the killstreaks above, all that remains of this one are strings.

Codename	String
MP_EARNED_HELICOPTER_BLACKBOX	"Press [{+actionslot 4}] for HELICOPTER BLACKBOX."
KILLSTREAKS_HELICOPTER_BLACKBOX	"Helicopter Blackbox"
KILLSTREAKS_HELICOPTER_BLACKBOX_DESC	"Longer lasting helicopter."

Tank

Like the killstreaks above, all that remains of this one are strings. Like the Little Bird, there is some code that references this as well.

thread maps\mp\killstreaks\_tank::init();

Below is a table of strings used by this killstreak.

Codename	String
MP_EARNED_TANK	"Press [{+actionslot 4}] for Tank."
PERKS_TANK	"6 killstreak for armor support."
KILLSTREAKS_TANK	"Tank"
KILLSTREAKS_TANK_DESC	"A tank."

Helicopter MK19

Like the killstreaks above, all that remains of this one are strings. Judging from these strings, it is possible that you would have been able to take control of a helicopter that isn't the Chopper Gunner.

Codename	String
MP_EARNED_HELICOPTER_MK19	"Press [{+actionslot 4}] for HELICOPTER MK19."
KILLSTREAKS_HELICOPTER_MK19	"Helicopter Gunner"
KILLSTREAKS_HELICOPTER_MK19_DESC	"Remote control of a helicopter GL."

Auto-Grenade Launcher

Like the killstreaks above, all that remains of this one are strings.

Codename	String
MP_EARNED_AUTO_SENTRY_GL	"Press [{+actionslot 4}] for AUTO-GRENADE LAUNCHER."

Unused Music

Unused Nuke Music

In the game's files, there is a music file for the "Tactical Nuke" killstreak, most likely intended for when someone uses it. The sound file is an excerpt from the music track when the player kills General Shepherd at the end of the game.

Unused Graphics

Winchester 1200 Create-A-Class Icon

While the weapon itself is used, the Create-A-Class icon (for multiplayer) is not.

Train Death Feed

A graphic for the multiplayer game mode. Most likely intended for if the player got killed by a train, but it isn't used.

Test Graphic

A graphic that has the number one in a circle. Likely meant for testing purposes.

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  The test graphic.

Unused Server Browser Graphics

There are graphics in the game's files for a possible dedicated server browser. However, since the game doesn't support dedicated servers, they are left unused.

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  An icon to show that the server is "pure".

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  An icon to show that the server requires a password.

Unused MG4 Scope

The MG4 has a texture sheet for an unused scope attachment. It can be added to the gun by modifying the attachment's file.

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  The unused scope's texture sheet.

Unused Akimbo Perk Icon

In the game's files, there is an unused perk icon for "Akimbo". It is possible that during development instead of having Akimbo as a weapon attachment, it would have been a perk.

• 

Unused Cinematics

In the game's files, there are a few .bik files that are not used in the actual game.

default.bik	attract.bik

Unused Vehicles

Default Vehicle

An untextured model that barely resembles an actual vehicle. Likely to be meant for testing purposes.

Unused Weapons

To do: Add unused weapons not mentioned here and add sounds to the mix.

Unused Weapon Attachments

These are strings for each weapon that were cut for balancing purposes.

Weapon	Codename	Attachment	String
Model 1887	WEAPON_MODEL1887_XMAGS	Extended Mags	"Model 1887 Extended Mags"
SPAS-12	WEAPON_SPAS12_HEARTBEAT_SENSOR	Heartbeat Sensor	"SPAS-12 Heartbeat"
Winchester 1200	WEAPON_WINCHESTER1200_GRIP	Foregrip	"W1200 Foregrip"
Winchester 1200	WEAPON_WINCHESTER1200_REDDOT	Red Dot Sight	"W1200 Red Dot Sight"

Default Weapon

As an attempt to show the model, the FOV has been increased.

Accessible using console commands or modding. This weapon lacks textures, proper sights, as well as a reload animation. However it does have a model.

Below is a table of strings (attachments included) used by this weapon.

Codename	Attachment	String
WEAPON_DEFAULTWEAPON	None	"Default Weapon"

Power Drill

Only a texture sheet remains for this "weapon". What this would've used for is anybody's guess.

Remington 870 MCS

Completely inaccessible. This weapon only has a texture sheet in the game's files.

Texture Sheet

Unused Maps/Missions

Maps

Only the following localized strings remain.

Map Name	Code Name	Description (if any)
"Ambush"	MPUI_CONVOY	"Large desert town. Excels in Sabotage matches."
"Arcadia"	MPUI_SUBURBIA	"<Description Needed>"
"Argun"	MPUI_ARGUN
"Backlot"	MPUI_BACKLOT	"Medium sized construction site. Great level for any mode."
"Bloc"	MPUI_BLOC	"Large Russian apartment bloc. Intense Domination matches."
"Bog"	MPUI_BOG	"Small desert bog. Open level, excellent for smaller groups."
"Broadcast"	MPUI_BROADCAST	"TV Station."
"Cellblock"	MPUI_CELLBLOCK
"Countdown"	MPUI_COUNTDOWN	"Open launch pad. Huge sight lines and dangerous maneuvering."
"Crib - Basement"	MPUI_CRIB_BASEMENT
"Crossfire"	MPUI_CROSSFIRE	"Small desert town. Intense interior fighting and strong firefights."
"District"	MPUI_CITYSTREETS	"Large urban town with a market in the middle. Great for team games."
"Downpour"	MPUI_FARM	"Big rainy Russian farm. Excellent for Sabotage matches."
"Dusk"	MPUI_DUSK
"Facility"	MPUI_FACILITY
"Firing Range	MPUI_FIRINGRANGE
"Gridiron"	MPUI_SABOTAGE_COUNTDOWN
"Gulag"	MPUI_GULAG	"Night time jail fight. Large scale Russian prison fighting."
"Hill"	MPUI_HILL
"Mall"	MPUI_MALL
"Mansion"	MPUI_MANSION
"Oil Rig"	MPUI_OILRIG
"Palace"	MPUI_PALACE
"Pipeline"	MPUI_PIPELINE	"Russian trainyard. Excellent team games."
"Plaza"	MPUI_DOWNTOWN_LA
"Riverwalk"	MPUI_RIVERWALK
"Shipment"	MPUI_SHIPMENT	"Tiny Russian shipyard. Fast paced action with no hiding."
"Showdown"	MPUI_SHOWDOWN	"Small desert arena. Great fast game play for small numbers of players."
"Trailer"	MPUI_TRAILER
"Vertigo"	MPUI_VERTIGO
"Wet Work"	MPUI_CARGOSHIP	"Medium-large cargoship. Fast-paced Search and Destroy matches."

so_ghillies

While there is a map that is used by the game that is similar to this one, the level "All Ghillied Up" from the original Modern Warfare is still present but the mission is not. You spawn wielding no weapon but you can obtain the M1014 by attempting to switch weapons. The map lacks a proper compass map, some models don't have their textures, and the radiation that should kill you doesn't exist. The level can be accessed using console commands or modding.

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  What the player will see upon spawning.

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  The compass is visible, showing that it lacks a proper compass map.

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  The piano model doesn't have a texture.

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  Showing that the radiation the player is supposed to be killed by doesn't exist.

Unused Special Ops Mission

Interestingly, co_hunted, a map from the original Modern Warfare is still in the final release build. It's possible to load a half finished mission that uses it. Your objective is to run from the helicopter crash site to the bridge as quickly as possible. Upon reaching the bridge, your controls either freeze, or a grey window appears that asks you to "Return To Special Ops". If you run out of time, it blows up and you fail the mission.

Difficulty	Time Limit
Recruit	4 Minutes
Regular	3 Minutes
Hardened	2 Minutes
Veteran	1½ Minutes

All allied forces use models from the original Modern Warfare. However, the axis forces, as well as your own character, use models from this game.

The mission would later be refined in the final game as the Special Ops mission Overwatch with significant differences, such as no allied forces at the beginning and the mission ending at the barn rather than the gas station. This version requires two players to play, one player would protect the other by attacking enemy forces with an AC-130.

Below is a video which demonstrates the unused mission.

Unused Gamemodes

Arena

Very similar to Search and Destroy. No respawning, first team to win four rounds wins. The object of the game mode is to kill all the opposing team's players. When only one player on each team is left standing, a flag spawns in a random location. If the flag is brought back to a team's respective side, they win. Even if one of the last two players alive kills the other, the flag must still be captured in order to win the round. Accessible using console commands or modding.

The following table is a list of strings this gamemode uses.

Codename	String
MPUI_ARENA	"Arena"
MPUI_ARENA_CAPS	"ARENA"
OBJECTIVES_ARENA	"Team elimination with a twist"
OBJECTIVES_ARENA_HINT	"Eliminate the enemy or capture the flag"
OBJECTIVES_ARENA_SCORE	"Eliminate the enemy or capture the flag. The flag will spawn when a team is down to one player."
MENU_ARENA	"Win the match by eliminating the opposing team or capturing the center point."
MENU_ARENA_DESC	"ARENA."

Defcon

A game mode with a twist. At Defcon 5, the game progresses as normal. At Defcon 4, each player goes into Last Stand before death. At Defcon 3, every weapon deals more damage. At Defcon 2, all killstreaks take one less kill to obtain. At Defcon 1, all players are eliminated from one round when killed. If after a minute one side has not won at Defcon 1, a Nuke detonates, and the games ends as a draw. Files called "[faction]_1mc_defcon_[1-5]_01.wav" can be found, and there are also the announcer sound files for the player's team saying Defcon 5 all the way to Defcon 1. Accessible using console commands or modding.

The following table is a list of strings this gamemode uses.

Codename	String
CHALLENGE_DESC_DICTATOR	"Change the DEFCON 3 times in one game."
CHALLENGE_DESC_MACH5	"Change the DEFCON in the first minute of a game."
CHALLENGE_DEFCON	"Defcon"
CHALLENGE_DEFCON_CHALLENGES	"DEFCON Challenges"
MENU_DEFCON_CAPS	"DEFCON"
MP_CAUSED_DEFCON	"Emergency Airdrop!"
SPLASHES_DEFCON_LOWER	"DEFCON Lowered!"
SPLASHES_DEFCON_RAISE	"DEFCON Raised"
SPLASHES_DEFCON_LOWER_DESC	"Killstreaks upgraded!"
SPLASHES_DEFCON_RAISE_DESC	"Killstreaks downgraded."
SPLASHES_DEFCON_5	"DEFCON 5"
SPLASHES_DEFCON_4	"DEFCON 4"
SPLASHES_DEFCON_3	"DEFCON 3"
SPLASHES_DEFCON_2	"DEFCON 2"
SPLASHES_DEFCON_1	"DEFCON 1"
SPLASHES_DEFCON_4_DESC	"Match starting!"
SPLASHES_DEFCON_3_DESC	"Emergency airdrop incoming!"
SPLASHES_DEFCON_2_DESC	"Killstreaks rollover!"
SPLASHES_DEFCON_1_DESC	"Double points for objectives!"

Die Hard

Team Deathmatch, except everyone is given Last Stand and teammates in Last Stand are marked with a green cross on the minimap. This game mode has a variant of almost every other game mode such as Die Hard Team Deathmatch, Die Hard Domination, and so on.

The following table is a list of strings this gamemode uses.

Codename	String
MPUI_RULES_DIEHARD	"Diehard Mode: "

Global Thermonuclear War

Guard a tactical nuke from the enemy team until the time runs out. It appears to have been scrapped late in development, as it's fully functional and can be played using console commands or modding. Plus, the Strategy guide shows pictures of a game of Global Thermonuclear War.

The following table is a list of strings this gamemode uses.

Codename	String
MPUI_GTNW	"Global Thermonuclear War"
MPUI_GTNW_CAPS	"GLOBAL THERMONUCLEAR WAR"
OBJECTIVES_GTNW	"Be the first team to capture the Nuclear Strike crate to win."
OBJECTIVES_GTNW_SCORE	"Be the first team to capture the Nuclear Strike crate to win. First team to &&1 capture wins."
OBJECTIVES_GTNW_HINT	"Capture the nuke."
SPLASHES_GTNW_OVERTIME	"Sudden Death!"
SPLASHES_GTNW_OVERTIME_DESC	"No respawning."

One Flag Capture the Flag

Capture the Flag, except one team has to defend a flag while the other team have to grab the flag and bring it back to their side. Accessible using console commands or modding.

The following table is a list of strings this gamemode uses.

Codename	String
MPUI_ONE_FLAG	"One Flag CTF"
MPUI_ONE_FLAG_CAPS	"ONE FLAG CTF"
OBJECTIVES_ONE_FLAG_ATTACKER	"Gain points by stealing the enemy flag and then touching the beacon at your base."
OBJECTIVES_ONE_FLAG_DEFENDER	"Protect the flag from being captured."
OBJECTIVES_ONE_FLAG_ATTACKER_SCORE	"Gain points by stealing the enemy flag and then touching the beacon at your base. First team with &&1 captures wins."
OBJECTIVES_ONE_FLAG_DEFENDER_SCORE	"Protect the flag from being captured. First team with &&1 captures wins."
OBJECTIVES_ONE_FLAG_DEFENDER_HINT	"Defend the flag."

VIP

Capture the Flag, but your team is instead protecting a randomly selected player.

The following table is a list of strings this gamemode uses.

Codename	String
MPUI_VIP	"VIP"
OBJECTIVES_VIP	"VIP mode"
OBJECTIVES_VIP_ATTACKER_HINT	"Kill the VIP and keep him from reaching the extraction zone."
OBJECTIVES_VIP_DEFENDER_HINT	"Defend the VIP and help him reach the extraction zone."
OBJECTIVES_VIP_DEFENDER_SCORE	"Protect the VIP and assist his extraction. When the VIP reaches the extraction zone defend him until extraction is complete."
OBJECTIVES_VIP_ATTACKER_SCORE	"Kill the VIP and any defenders. Prevent the VIP from being extracted from battle."
SPLASHES_VIP	"You are the VIP"
MENU_VIP	"Take turns escorting the VIP to the extraction zone."
MP_ELIMINATED_VIP	"V.I.P. Eliminated"
MP_DEFENDED_VIP	"V.I.P. Rescued"

Unused Strings

Beta Leftover

This needs some investigation. Discuss ideas and findings on the talk page. Specifically: Is there any copy of this supposed beta? If not, is there any information about it?

Codename	Text
MP_BETACLOSED	"The Beta for Modern Warfare 2 has now ended."

Unused Perks

A bunch of unused perks can be found in the game files. While some were cut due to balancing, others were made into deathstreaks.

Name	Code Name	Description
"Flash Grenade x 3"	PERKS_FLASHGRENADE	"Blinds and deafens targets."
"EMP Grenades x3"	PERKS_3X_WEAPON_EMP_GRENADE	"Utilize the grenades of KIA."
"Mozambique"	PERKS_BURSTFIRE	"3 round burst mode."
"Siege"	PERKS_SIEGE	"Immobile but greater accuracy"
"Free Fall"	PERKS_FREEFALL	"No falling damage."
"Feign Death"	PERKS_FEIGNDEATH	"Fake your own Death"
"Shellshock"	PERKS_SHELLSHOCK	"A riot shield on your back."
"Freerunner"	PERKS_FASTMANTLE	"Climb obstacles faster."
"Explosive Bullets"	PERKS_EXPLOSIVEBULLETS	"Bullets explode on impact"
"Thermal Vision"	PERKS_THERMAL	"Enemies glow white hot."
"Dive"	PERKS_JUMPDIVE	"Jump to dodge bullets."
"Blackbox"	PERKS_BLACKBOX	"Longer killstreak duration."
"Steel Nerves"	PERKS_STEELNERVES	"Improves marksmanship."
"Amplify"	PERKS_AMPLIFY	"Enhanced hearing of enemy footsteps."
"Saboteur"	PERKS_SABOTEUR	"Quickly complete objectives."
"Heart-Breaker"	PERKS_HEARTBREAKER	"Invisible to heartbeat sensors."
"Challenger"	PERKS_CHALLENGER	"Easy death but extra experience."
"Rearview"	PERKS_REARVIEW	"Minimap is replaced with rear view."
"Improved Iron Lungs"	PERKS_IMPROVEDEXTRABREATH	"Even longer breath for steadier sniper shots."
"Primary Stand"	PERKS_LAST_STAND_PRIMARY	"Use any weapon in Last Stand."
"Spy Game"	PERKS_SPYGAME	"No red crosshair or name when targeted."
"C4Death"	PERKS_C4DEATH	"Pull out C4 before death."
"Offhand"	PERKS_LAST_STAND_OFFHAND	"Use equipment in last stand."

Multiplayer Mail System

It appears that during its early stages of development, the game used an in-game mailing system. The following localized strings are what remain in the game files.

Code Name	Description
MPUI_MAIL_CONTACT_DMITRI	"Dmitri Volkov"
MPUI_MAIL_CONTACT_STRICKLAND	"Col. Strickland"
MPUI_MAIL_SUBJECT_TOO	"Target of oppurtunity eliminated!"
MPUI_MAIL_BODY_WEAPON_TOO	"You've eliminated a known target that we'd been looking for for some time. We'll be sending you something useful as payment."
MPUI_MAIL_SUBJECT_WEAPON_ARRIVED	"Enjoy your new hardware!"
MPUI_MAIL_BODY_WEAPON_ARRIVED	"We hope this bad boy helps you out in the fight against the enemy. Give 'em hell for us."
MPUI_MAIL_SUBJECT_PERK_ARRIVED	"New field manual declassified."
MPUI_MAIL_BODY_PERK_ARRIVED	"You've received clearence for the field opperations manual. Use what you've learned wisely."
MPUI_MAIL_SUBJECT_INCOMING_ATTACHMENT	"Something new is on the way."
MPUI_MAIL_BODY_INCOMING_ATTACHMENT	"I've sent you a little something for your troubles; it should be arriving shortly. Enjoy."
MPUI_MAIL_SUBJECT_ATTACHMENT_ARRIVED	"Hope you get some use out of this"
MPUI_MAIL_BODY_ATTACHMENT_ARRIVED	"Here's a handy attachment for your weapon. P.S. I miss you so bad it hurts."
MPUI_MAIL_SUBJECT_CAMO_ARRIVED	"Enjoy your new camo!"
MPUI_MAIL_BODY_CAMO_ARRIVED	"Here's a little something to spice up the look of your weapon."
MPUI_MAIL_SUBJECT_INCOMING_SUPPORT	"You've earned it."
MPUI_MAIL_BODY_INCOMING_SUPPORT	"I'm working on authorization to get you some new air support. Stay tuned."
MPUI_MAIL_SUBJECT_SUPPORT_ARRIVED	"Your authorization came through."
MPUI_MAIL_BODY_SUPPORT_ARRIVED	"I got the authorization for some new air support. Get out there and win one for us!"
MPUI_LOTTERY_TICKET_NORMAL	"Lottery Ticket"
MPUI_LOTTERY_TICKET_SUPER	"Super Lottery Ticket"
MPUI_LOTTERY_TICKET_MEGA	"MEGA LOTTERY TICKET!"

It appears that along with this mailing system, it would be possible to earn one of three lottery tickets, being either a regular ticket, a super ticket, or a mega ticket.

Unused Abilities

Getting a Tactical Nuke from a Care Package in Multiplayer

Normally, it isn't possible to get the "Tactical Nuke" killstreak from a care package, nor can you get one from an emergency airdrop. However, using console commands or modding, you can obtain it. The following string is left unused because of this.

Codename	String
MP_NUKE_PICKUP	"Press and hold [{+activate}] for a Nuclear Strike"

Camouflaged Secondary Weapons in Multiplayer

Normally, it isn't possible to get a secondary weapon with a camouflage in the multiplayer game mode. However, using console commands or modding, you can apply camouflages to certain secondary weapons.

The following are weapons that support this feature.

• SPAS-12
• AA-12
• M1014
• Striker

Create-A-Mode

Judging from the strings that used this feature, it may have been possible to create your own game mode and potentially use it in the future. This feature was actually used in Black Ops 2.

The following are strings used by this gamemode.

Codename	String
MENU_CREATEAMODE	"Create-a-Mode"
MENU_CUSTOMMODE_KEYBOARD	"Name your custom game mode"
PLATFORM_SAVECUSTOMMODE	"� Save / Back"
GAME_CUSTOM_GAMEMODE	"Modern Warfare 2 Custom Game Mode"

Hidden Level Select

To access this, go into the developer console and type /developer 1. At the singleplayer menu, if you go to the Mission Select screen, you should get a new option named "Game Levels". Upon selecting it you can access a screen that bears a striking resemblance to the original Modern Warfare's UI. It allows you to select any level in the singleplayer campaign.

Mission Select	Game Levels Screen

Hidden Developer Signatures

Designer/Scripter Alexander Roycewicz hid his name in a couple of maps he worked on. These can be hard to find as these are flat brown letters floating in the air and are in locations where the player normally can't go.

• 

  The map in this screenshot is the DLC map named "Overgrown".

• 

  The map in this screenshot is the DLC map named "Salvage".

• 

  The map in this screenshot is named "Quarry".

• 

  The map in this screenshot is named "Highrise".

• 

  The map in this screenshot is named "Afghan".

Region Differences

This needs some investigation. Discuss ideas and findings on the talk page. Specifically: Is there more than what is documented below?

"No Russian" Mission

The mission, "No Russian" was subject to changes in a few regions. If you kill a civilian in the Japanese and German releases, you fail the mission. To add to this, the Russian release of the game doesn't even have the mission at all.

Makarov's Infamous Line

Due to the poor translation accuracy in the Japanese version of the game, Makarov's infamous line was different. The poor translation actually resulted in a lot of backlash towards the Japanese publisher Square Enix.

English	Japanese (Translated)
"Remember... no Russian."	"Kill them, they are Russians."

Multiplayer Unlocked Icon

The icon used for an unlocked item differs between the English and the non-English versions of the game. It is likely that to save the trouble of translating the word "new" to different languages, the developers just changed the picture to a picture of an unlocked lock.

English	Non-English

Version Differences

To do: Get more information about Update 1.06 and the updates not noted below.

Update 1.06

The update was released on December 11, 2009. This update fixes several glitches.

Update 1.07

The update was released on December 18, 2009. Before this update, the Model 1887's Akimbo attachment had an excessively long range. The update significantly reduced the range of the Akimbo attachment and also patched a hack that gave a very high level to players. The video below demonstrates the range before and after this update.

Update 1.08

The update was released on January 29, 2010. Before this update, the Model 1887's Akimbo and Bling attachment combination had the same excessively long range that the pre-1.07 Akimbo attachment had. The update significantly reduced the range of the attachment combination and fixed several glitches.

Map Pulled

On October 8, 2012, Activision temporarily pulled the Favela map after getting several complaints from offended Muslim players because on the Favela map, there is a room in one of the buildings with 2 paintings. The picture's frames contained foreign text that read "Allah is beautiful and He loves beauty". The problem with this was that the painting was placed in a bathroom and as a result many found this location choice to be very disrespectful.

After solving the problem, the map returned on October 23, 2012 without the offensive content.

(Source: http://www.shacknews.com/article/76098/call-of-duty-modern-warfare-2-map-favela-pulled-following)