Call of Duty Online

"Call of Duty Online will showcase the traditional features and play-modes of Call of Duty® with localized, unique content tailored to the needs and interest of gamers in China."

- Activision

Call of Duty Online (also known as CODOL) is a Call of Duty game released exclusively in China as a "free-to-play micro transaction game" published, marketed, and distributed by Tencent Holdings and fully developed by Activison Shanghai and Raven Software. The game entered open beta on January 14, 2013. The game features a new gaming model which gives the player the ability to personalize weapons, characters and equipment "with localized, unique content tailored to the needs and interest of gamers in China.". The game also reuses dozens of maps, character models and weapons from both the Modern Warfare and Black Ops series, which can be seen on its trailers.

The game features a campaign mode in which the player controls Rook and has returning characters such as John Price, John "Soap" MacTavish and Simon "Ghost" Riley. There is also a robot Zombies mode in Call of Duty Online.

Weapons
There are various weapons in Call of Duty Online that have appeared in the Modern Warfare series. The weapons are able to be highly aesthetically customized, even in areas that haven't been able to be customized before, such as stocks, magazines, and handguards. New weapons and attachments get added through updates.

Assault Rifles:

 * AK-47
 * F2000
 * FAL
 * FAMAS
 * M16A4
 * M4A1
 * MCS (ACR)
 * MTAR
 * SCAR-H
 * TAR-21
 * M4A1 Tech
 * CAR-T (AK-104)

Submachine Guns:

 * Mini-Uzi
 * MP5K
 * P90
 * UMP45
 * Vector

Light Machine Guns:

 * AUG HBAR
 * L86 LSW
 * M240
 * MG4
 * RPD

Sniper Rifles:

 * M200 Intervention
 * WA2000
 * M21 EBR
 * Barrett .50cal (Removed in present version)
 * AS-50

Shotguns:

 * AA-12
 * M1014
 * Ranger
 * SPAS-12
 * Striker
 * Model 1887

Handguns:

 * .44 Magnum
 * GSE-50 (Desert Eagle)
 * M9
 * UP-T45 (USP .45)
 * M1911 (Only appear in Dead Rising as starting weapon)

Machine Pistols:

 * G18
 * M93 Raffica
 * PP2000
 * TMP

Launchers:

 * AT4-HS
 * RPG-7
 * Stinger
 * Thumper
 * Javelin
 * SMAW

Specials:

 * Riot Shield

Wonder Weapons:

 * Ray Gun

Weapon Attachments
There is also an incredible array of weapon attachments available to customize a weapon. Attachments also get added through updates. *Please note that this list is not organized by weapon and is incomplete*
 * Reflex Sight (Four variants: Tube-like, circular, square, and handgun-size)
 * ACOG Scope (Known as AOGS Scope)
 * Silencer
 * Laser Sight
 * Extended Magazines
 * Ballistics CPU
 * Variable Zoom
 * Thermal Sight
 * Heartbeat Sensor (Orange)
 * Foregrip
 * Grenade Launcher
 * Masterkey
 * Akimbo
 * Underrail (Doesn't provide any benefits it seems so far.)
 * Long Barrel
 * FMJ
 * EOTech Sight (Two variants: EXPS, 553.)
 * Buttstock (Doesn't provide any benefits it seems so far.)
 * Barrel Changing (Doesn't provide any benefits it seems so far.)
 * Hollow Points (Increases the Damage at the moment.)

Multiplayer Maps
The multiplayer maps are a mix of maps from the Modern Warfare series and Call of Duty: Black Ops. New maps get added through updates as well. Most of the maps feature updated graphics and lighting changes from their previous games. However, some of the maps have drastic theme changes.
 * Nuketown (Known as York Town)
 * Bog (Known as Night Quagmire)
 * Wet Work
 * Bloc (Known as Forgotten City)
 * Overgrown (Known as Farm)
 * Storm (Snow covered instead of rainy)
 * Estate Tropical (Estate with a tropical landscape)
 * Crash Tropical  (Crash with a tropical landscape)
 * Favela Tropical (Favela with a tropical landscape)
 * Underpass
 * Desert Border (Afghan with a different name)
 * Killhouse
 * Crossfire
 * Rust
 * Shipment
 * Freighter (Ice-covered version of Wet Work)

Equipment
There is a vast amount of equipment to choose from in this Call of Duty.
 * M67 Grenade
 * Throwing Knife
 * Semtex
 * Smoke Grenade
 * Nova Gas (similar to Tabun Gas)
 * Bouncing Betty
 * Flashbang
 * Stun
 * EMP Grenade
 * C4
 * Claymore
 * Scrambler (Equipment)
 * Tactical Insertion

Perks
Seemingly Tencent has done some reworks to the Perks. Perks are mixed with Perks from Call of Duty: Modern Warfare 3 and Call of Duty: Black Ops. Perks do not have pro versions in this game.

Perk 1

 * Sleight of Hand (快手)(Literally 'fast hand') - Faster reloading.
 * Marathon (马拉松) - Sprint for a longer duration (no unlimited sprint).
 * Scavenger (食腐鸟) - Replenishes ammunition.
 * Steady Aim (稳定瞄准) - Increased hip-fire accuracy.
 * Lightweight (轻装上阵) - Sprint faster.
 * Recon (侦察) - Explosive damage paints targets on the mini-map (including Cold-Blooded users).

Perk 2

 * Hardline (强硬路线) - Killstreaks require 1 less kill and the number of deaths needed for a deathstreak is reduced by 1.
 * Flak Jacket (防暴衣) - Decreases explosive damage.
 * Cold-Blooded (冷血) - Undetectable by UAV, Sentry Guns, Heartbeat Sensors and other killstreaks. Users are not highlighted with a red outline square.
 * Quickdraw (快速瞄准) - Aim down sight faster.

Perk 3

 * Stalker (追猎者) - Retain walking speed while aiming down sight.
 * SitRep (军情报告) - Enemy explosives and equipment are highlighted in red and visible through walls.
 * Ninja (忍者) - Completely silences player's noises.
 * Last Stand (最后一搏) - Pull out your pistol before dying.

Multiplayer Factions
The factions playable in multiplayer are the same as those in previous Call of Duty games. Not much is known whether the factions are the exact same ones, these were taken from various in game screen shots that included Domination flags.
 * Task Force 141
 * Tropas
 * Shadow Company (The uniforms of some soldiers plus some insignias and patches hint towards the inclusion of Shadow Company.)

Deathstreaks
Call of Duty Online also features Deathstreaks. It uses the same Deathstreaks from Call of Duty: Modern Warfare 2.
 * Painkiller
 * Martyrdom
 * Copycat
 * Final Stand

Killstreak
In the beta version (0.0.3.1.7) of Call of Duty Online, there are a multitude of killstreaks to select from. Most have been seen in Call of Duty: Modern Warfare 2 and Call of Duty: Black Ops, but, there are others that have been added into the game from other Call of Duty's.
 * RC-XD
 * UAV
 * Counter-UAV
 * Care Package
 * SAM Turret
 * Harrier Strike
 * Attack Helicopter
 * Precision Airstrike
 * Sentry Gun
 * Mortar Team
 * AGM (Predator Missile)
 * Satellite (Acts the same way as Advanced UAV, but it does not have a physical appearance like the Orbital VSAT)
 * Pavelow
 * Chopper Gunner
 * AC-130 (Killstreak)
 * Attack Dogs
 * EMP
 * Tactical Nuke

Dead Rising
On November 30, 2013, Activision announced that Treyarch's Zombies mode will come to Call of Duty Online as Cyborg Zombies in the game mode "Dead Rising". The first map is Outpost, is a remake of Nacht der Untoten. The second map is a remake of Verrückt. So far, the characters are Cowboy, Trigger, Sergeant, and LvBu.

Trivia

 * This game is exclusive to China at the moment but there are talks on bringing the game to the rest of the world.
 * There is a way to play the game outside of China by getting into a Chinese server, but the connection would be very inadequate. The servers are up and running.
 * In Dead Rising, unlike Zombies, it is not endless survival, as a helicopter will come to pick the player up at a certain point.
 * This makes it similar to Point of Contact in Call of Duty: Ghosts.
 * The robot zombies do have coloured eyes, like in Zombies.
 * Both Zombies and Extinction modes do not have subtitles (although the characters talk) however, Dead Rising has.
 * The robot zombies move slower than zombies but are harder to kill.（But not very slower and not very harder）