China

CSO2

2018

18 May 2018

CSO2 China is officially closed.

16 March 2018

Announcement of server shutdown
Creation of new IDs are restricted
Cash point items are converted to Game Point items.

2016

20 October 2016

Adopted Opal skins for Daewoo K5, Daewoo K1, Daewoo K2C, Daewoo K12 and Daewoo USAS-12
Updated Challenge Mode: Boss Battle
Added QBS-09 Panda
Held Halloween event

12 September 2016

Updated Zombie Z mode
Adopted Barrett M95 and Barrett M107A1 CQ
Adopted QSZ-92 Panda and AKM War Machine

8 September 2016

Adopted Crowbar
Released Penthouse

18 August 2016

Recruited Hasan and Kwan
Added 5 Cobalt weapons: MK18 Mod1, MP5, M60E4, SG550, Remington M870
Added Battle Toy Hammer
Released Centered

4 August 2016

Patched Zombie Z mode
Adopted M79, China Lake, M32 MGL & Neopup PAW-20

20 July 2016

Updated Hide and Seek 2 mode
Added M1911 A1
Added Mila and Lisa Swimsuits
Introduced Ice Box
Added TAC-15, Net Launcher Gold & Harpoon Gold
Added QBZ-95, T65K1 & T86

6 July 2016

Added [Chrome] skins for F2000, AKM, G3SG1, PKM & Beretta MX4 Storm
Released Survivor for Zombie mode

22 June 2016

Patched Mini Original
Released Duo
Updated personal chatting system

7 June 2016

Adopted Z-M LR300 and Battle Toy Hammer
Added AWM Nebula, AKM Nebula and MK18 Nebula into Black Fortune Box
Recruited SAS
Re-patched Defense
Released Temple and 3rd Supply Base
Introduced [Dragon Boat Backpack], [Camera Cap], [Actor Expression Balloons] Costumes and [Water] Pace Effect

25 May 2016

Adopted M9 Bayonet
Added Warehouse into Hide and Seek 2
Introduced [Task Force Combat Gloves] Costumes
Updated some systems

11 May 2016

Adopted M16A4
Released Storage and Warehouse
Introduced [Nurse Cap] and [Large Syringe Backpack] Costumes
Held Special Gun Deathmatch event

27 April 2016

Added Dual Elites Amethyst, AWM Amethyst, K2C Amethyst and AR-57 Amethyst into Amethyst Fortune Box
Updated Hide and Seek 2
Introduced [Commando Beret & Sunglasses] and [Panda] Costumes

12 April 2016

Adopted AWM Panda Gold and Birthday Cake Grenade
Recruited Heather and Sonya
Updated Duel mode
Released Dust Duel
Introduced [Birthday Cake Hat] and [Fire Wing] Costumes

30 March 2016

Adopted AF2011-A0
Added AEK-973 Cobalt, Striker-12 Cobalt and SCAR-L Cobalt into Black Fortune Box
Introduced Tammy Weapon Box
Sold Starter Pack and Zombie Hunter Pack

23 March 2016

Recruited Lincoln and Mao
Released Headquarter
Added Studio into Hide and Seek 2
Added [Frog] and [Spring Outing Hat] Costumes
Introduced Character Selecting system for Daily Challenge Mission
Improved Quick Start and Rank Score systems

9 March 2016

Adopted AKM, MK18 Mod1, AWM, XM1014 Cupid and White Day Grenade
Patched Gun Ball
Released Virtual Arena
Added [Bombard Zombie Hat] and [Bombard Zombie Bag] Costumes

24 February 2016

Released Laboratory
Unleashed Bombard and Worker zombies for Commander-Z
Added [Laboratory Enhancement] system for Commander-Z

3 February 2016

Adopted Desert Eagle Phoenix, MP7A1 Phoenix, Hunting Knife Monkey and Silver weapon series
Resold AK-47 Monster and M4A1 Monster
Recruited Tammy and Emma
Added [Monkey] Costumes
Added Hard difficulty to Zombie Crush
Updated Hide and Seek 2
Held Lunar New Year and Valentine events

20 January 2016

Adopted Triple Action Thunder and Barrett M99
Patched Commander-Z
Released Trainyard
Remade Corner
Added Freighter into Hide and Seek 2

6 January 2016

Adopted M14 EBR
Added Estate, Market and Assault into Hide and Seek 2
Updated Combination System

2015

22 December 2015

Adopted M3 Boom, M3 Boom Amethyst, Izmash AK-12 Xmas and Bushmaster ACR Xmas
Recruited Marie (Bunny Girl) and Natalie (Santa Girl)
Patched Hide and Seek 2
Introduced Christmas Fortune Box and Christmas Key
Held Christmas event
Updated Combination System

2 December 2015

Adopted M1 Garand, CS06 and Radon MSBS-B
Released Freighter
Added hit-markers function

25 November 2015

Updated VIP system

18 November 2015

Adopted M1903A3 Springfield
Released Pig Tag
Introduced [Spartan Helmet] Costume
Introduced Clan Mission and Broadcasting System

11 November 2015

Adopted AWP Solo and M4A1 Solo

4 November 2015

Adopted AK-47 Solo
Released Storm

28 October 2015

Introduced [Pumpkin Hat] [Witch Hat], [Witch Broom] Costumes and [Bats] Pace Effect
Held Halloween event

21 October 2015

Resold AK-47 Monster, M4A1 Monster and Amethyst Key

14 October 2015

Added Estate into Zombie House
Patched Personal Training and Casual Mission
Removed DIY

23 September 2015

Recruited Carrie and Viper
Adopted MK23 Socom, QSZ-92, QBS-09, AK-47 Monster and M4A1 Monster
Released Survivor
Added [Rabbit Hat], [Rice Cake Stick], [Peking Opera Mask], [Peking Opera Flag] Costumes and [Maple Leaf] Pace Effect
Resold Yuri and Choi Ji Yoon
Introduced Amethyst Fortune Box, Amethyst Key and Booster Item
Added M60E4 Gold, FAMAS Gold and Galil Gold into Black Fortune Box
Added MG3 AA Amethyst, Double Defence Amethyst, Izmash AK-12 Amethyst and Bushmaster ACR Amethyst into Combination System and Amethyst Fortune Box
Added USP Dolphin and USP Camo into Green Weapon Box
Added Amethyst Piece and Amethyst Ingot
Updated Combination System
Introduced Character Card system
Added "Easy" difficulty to Zombie Crush
Held Mid-Autumn Festival and National Day celebration

16 September 2015

Patched Duel mode
Released Diner
Added FAMAS Chicken, Galil Caracal, SG550 Schweizergarde, G3SG-1 Heer, SG550 Camo and G3SG-1 Camo into Combination System and Green Weapon Box
Introduced EXP Bonus, POINT Bonus and EXP + Point Bonus
Updated Matchmaking system

9 September 2015

Recruited Elite Crew
Added [Golden Gloves] costumes

2 September 2015

Released Toscana
Adopted Daewoo K2C
Added Chrome Skins (Grade S) for AR-57 PDW, MP7A1, KRISS Vector and Armsel Striker-12 into Black Fortune Box
Added Chrome Piece, Chrome Ingot, Carbon Fabric, Golden Piece and Golden Ingot for Combination System