Call of Duty: Modern Warfare 2 (Windows)

Call of Duty: 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 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

This article is a work in progress. ...Well, all the articles here are, in a way. But this one moreso, and the article may contain incomplete information and editor's notes. Notes: There are likely going to be more things to uncover in the game's files.

Call of Duty: Modern Warfare 2 is the 2nd entry in the Modern Warfare series. With improved graphics, an impressive singleplayer campaign, and a soundtrack scored by Hans Zimmer, it ultimately proved to be a success.

Subpages

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

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

To do: Get the voices in other languages.

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 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."

English Version

The following table is for the English language.

Faction	Friendly	Enemy	Standing By
Army Rangers
Militia
Navy SEALs
OpFor
Spetsnaz
Task Force 141

French Version

The following table is for the French language.

Faction	Friendly	Enemy	Standing By
Army Rangers
Militia
Navy SEALs
OpFor
Spetsnaz
Task Force 141

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.

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.

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."

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

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.

• 

  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.

• 

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

• 

  An icon to show that the server requires a password.

Unused Faction Icon

A leftover from the original Modern Warfare.

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.

• 

  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

Model 1887

In the game's files, there are strings for the Model 1887 that are unused.

Codename	Attachment	String
WEAPON_MODEL1887_XMAGS	Extended Mags	"Model 1887 Extended Mags"

SPAS-12

In the game's files, there are strings for the SPAS-12 that are unused.

Codename	Attachment	String
WEAPON_SPAS12_HEARTBEAT_SENSOR	Heartbeat Sensor	"SPAS-12 Heartbeat"

Winchester 1200

Accessible using console commands or modding. This weapon is fully functional and has a Create a Class icon, a HUD icon, and a texture sheet in the game's files. However, like the M40A3, it is just a leftover from the original Modern Warfare.

• CODMW2-Winchester1200-InGame.png

  The Winchester 1200 when it is held.

• CODMW2-Winchester1200-InGame-Aiming.png

  Aiming down the Winchester 1200's sights.

• CODMW2-Winchester1200-HUDIcon.png

  The Winchester 1200's HUD icon.

• 

  The Winchester 1200's Create a Class icon.

• CODMW2-Winchester1200-TextureSheet.png

  The Winchester 1200's texture sheet.

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

Codename	Attachment	String
WEAPON_WINCHESTER1200	None	"W1200"
WEAPON_WINCHESTER1200_GRIP	Foregrip	"W1200 Foregrip"
WEAPON_WINCHESTER1200_REDDOT	Red Dot Sight	"W1200 Red Dot Sight"

AK-74u

Only a Create a Class icon and texture sheet exists.

• 

  The AK-74's Create a Class icon.

• 

  The AK-74u's texture sheet.

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

Codename	Attachment	String
WEAPON_AK74U	None	"AK-74u"
WEAPON_AK74U_ACOG	ACOG Scope	"AK-74u ACOG Sight"
WEAPON_AK74U_SILENCER	Silencer	"AK-74u Silenced"
WEAPON_AK74U_REDDOT	Red Dot Sight	"AK-74u Red Dot Sight"

AW-50

Only a Create a Class icon exists.

• 

  The AW-50's "Create a Class" icon.

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

Codename	Attachment	String
WEAPON_AW50	None	"AW-50"
WEAPON_AW50_ACOG	ACOG Scope	"AW-50 ACOG Sight"
Example	Example	Example

Default Weapon

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

• Mw2-Default-Weapon.png

  The Default Weapon when it is held in the multiplayer game mode. The FOV has been changed to show the model. Note the untextured cube under the left arm.

• 

  The Default Weapon when it is held in the singleplayer game mode. The FOV has been changed to show the model. The player's wrists are transparent.

• 

  Prompt to pick up the Default Weapon. Note the stretched AK-47 texture used.

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

Codename	Attachment	String
WEAPON_DEFAULTWEAPON	None	"Default Weapon"

G3

Files remain mentioning this. It can be seen in some early screenshots.

• 

  The G3's Create A Class icon.

• 

  The G3's texture sheet.

• 

  An early screenshot which the G3 can be seen.

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

Codename	Attachment	String
WEAPON_G3	None	"G3"
WEAPON_G3_ACOG	ACOG Scope	"G3 ACOG Sight"
WEAPON_G3_SILENCER	Silencer	"G3 Silenced"
WEAPON_G3_REDDOT	Red Dot Sight	"G3 Red Dot Sight"
WEAPON_G3_GL	Grenade Launcher	"G3 Grenade Launcher"

G36C

Accessible using console commands or modding. This weapon is fully functional and has a Create a Class icon, HUD icon, and a Red Dot Sight leftover from Modern Warfare

• 

  The G36C's Create A Class icon.

• 

  The G36C's HUD icon.

• 

  The G36C's texture sheet.

• 

  The G36C's Red Dot scope texture sheet.

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

Codename	Attachment	String
WEAPON_G36C	None	"G36C"
WEAPON_G36C_ACOG	ACOG Scope	"G36C ACOG Sight"
WEAPON_G36C_SILENCER	Silencer	"G36C Silenced"
WEAPON_G36C_REDDOT	Red Dot Sight	"G36C Red Dot Sight"
WEAPON_G36C_GL	Grenade Launcher	"G36C Grenade Launcher"

Gold Desert Eagle

Accessible using console commands or modding. This weapon is also fully functional, but it is just a leftover from the original Modern Warfare.

• 

  The Gold Desert Eagle's texture sheet.

• 

  The Gold Desert Eagle when it is held.

• Mw2-golddeagle-aiming.png

  Aiming down the Gold Desert Eagle's sights.

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

Codename	Attachment	String
WEAPON_DESERTEAGLEGOLD	None	"Gold Desert Eagle"

M40A3

This weapon is functional and can only be accessed in the mission "Of Their Own Accord" by typing give m40a3 in the console.

• 

  The M40A3's Create a Class icon.

• 

  The M40A3's HUD icon.

• 

  The M40A3's texture sheet.

• 

  The M40A3's scope texture sheet.

• 

  The M40A3's scope overlay.

• 

  The M40A3 when it is held in the singleplayer game mode.

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

Codename	Attachment	String
WEAPON_M40A3	None	"M40A3"
WEAPON_M40A3_ACOG	ACOG Scope	"M40A3 ACOG Sight"

MP-44

A Create a Class icon, HUD icon, and a texture sheet exists.

• 

  The MP-44's Create a Class icon.

• 

  The MP-44's HUD icon.

• 

  The MP-44's texture sheet.

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

String	Attachment	String
MPUI_MP44	None	"MP44"

MP5

A Create a Class icon, two HUD icons, and a texture sheet for the gun itself and a silencer exists. This, along with the MP-44, is a leftover from Modern Warfare.

• 

  The MP5's Create a Class icon.

• 

  The MP5's HUD icon.

• 

  The MP5's HUD icon with the sliencer attachment.

• 

  The MP5's texture sheet.

• 

  The MP5's silencer texture sheet.

Power Drill

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

• 

Remington 700

Completely inaccessible. In the game's files, there is a Create a Class icon and a HUD icon present. It appears to just be a leftover from the original Modern Warfare.

• 

  The Remington 700's Create a Class icon.

• 

  The Remington 700's HUD icon.

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

Codename	Attachment	String
WEAPON_REMINGTON700	None	"R700"
WEAPON_REMINGTON700_ACOG	ACOG Scope	"R700 ACOG Sight"

Remington 870 MCS

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

• 

  The Remington 870's 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.

• 

  What the player will see upon spawning.

• 

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

• 

  The piano model doesn't have a texture.

• 

  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. The best part is, it is 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
Easy	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. 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.

Faction	Default	Hardcore	Tactical	Third-person
Army Rangers
Militia
Navy SEALs
OpFor
Spetsnaz
Task Force 141

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.

Faction	Default	Defcon 5	Defcon 4	Defcon 3	Defcon 2	Defcon 1
Army Rangers
Militia
Navy SEALs
OpFor
Spetsnaz
Task Force 141

Defcon Gamemodes

Gamemode	Army Rangers	Militia	Navy SEALs	OpFor	Spetsnaz	Task Force 141
Arena*
Arms Race*
Capture the Flag
Demolition
Domination
Free-for-All
Global Thermonuclear War*
Headquarters
One Flag*
Sabotage
Search and Destroy
Team Deathmatch

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.

Gamemode	Army Rangers	Militia	Navy SEALs	OpFor	Spetsnaz	Task Force 141
Arena*
Arms Race*
Capture the Flag
Demolition
Domination
Free-for-All
Global Thermonuclear War*
Headquarters
One Flag*
Sabotage
Search and Destroy
Team Deathmatch

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.

Faction	Default	Hardcore	Tactical	Third-person
Army Rangers
Militia
Navy SEALs
OpFor
Spetsnaz
Task Force 141

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.

Faction	Default	Hardcore	Tactical	Third-person
Army Rangers
Militia
Navy SEALs
OpFor
Spetsnaz
Task Force 141

VIP

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

Unused Strings

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!"

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"

• 

  In-game.

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 SPAS-12 (A weapon in-game) with the Blue Tiger camo.

• 

  The M1014 (Another weapon in-game) with the Red Tiger camo.

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. In addition to this, the Russian release does not have the mission altogether.

Multiplayer Unlocked Icon

The icon used for an unlocked item differs between the English and the non-English versions of the game. In the English version, the icon has a background, while in the non-English versions, the icon doesn't.

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.