Zombie Scenario

Zombie Scenario is the second game mode introduced by NEXON Corporation for Counter-Strike Online based on a custom game mode for Counter-Strike called as Zombie Riot.

Overview

Zombie Scenario pits up to 10 players against increasingly hordes of AI-controlled Zombie. Money cap is doubled in this scenario and the amount obtained vary between type of zombie killed and the difficulty of the map. Extra health, damage and barrier durability can also be bought off the buy menu if the player have obtained a sufficient amount of money. The rounds will keep getting harder with different zombies pouring in while having more health and abilities.

Re:boot

Zombie Scenario also gets the Re:boot treatment, which completely overhauling its old system and new features were added:

Difficulty level
Rank
Upgrade
Reward
Buy menu/check point improvement
Add hunting feedback
Care dead player and map selection UI improvement
Character stats

Entry level: Entry level is Easy/Normal/Hard. Be able to choose difficulty level that suits for each player’s skill to make them to enjoy zombie scenario in a comfortable environment. Reward will be different according to the difficulty level.

Dynamic difficulty level: A difficulty level that continues to change in the game according to the player’s play. Provides high level of exciting game play to skillful user. Reduce stress with low difficulty level from unskillful user.

Provides a rank to user when they cleared a scenario according to their participation and contribution rate.
Induce a repeatable game play from user by providing a challenge goal to them except the difficulty level and clear time.
There are 5 stages of rank from D to S.
- Can obtain every rank regardless of its entry level.
- Give different rank to player with their individual play.
Indicate the rank and provide the reward together in game when they clear the scenario.

	Conditions	Reward
	Unknown
	Unknown
	Unknown
	Unknown
	Unknown

Auto Upgrade: Does not require extra key control, and upgrade it automatically with zombie kill, boss and breakable attack.
Upgrade target added: HP, attack, armor, movement speed and ammo.
Different max level and upgrade sequence for each class, max level increased by 100.

Obtain reward when user clear the game according to its difficulty level and rank. Consists of scenario exclusive item, point item, and cash item.
Add scenario exclusive buff item according to upgrade target increase.
Functional costume and tattoo will appear as unique reward. It will only effective in scenario and no effect in other game mode.
Note: all rewards before Re:boot cannot be obtained anymore.

Care a beginner user and provide convenient of purchase to previous user. Reduce difficulty of purchase weapon by recommending weapon to beginner user. Add a new purchase method of favorite menu to provide convenient to previous user by considering their game control.
Recommendation Weapon: Can purchase recommended weapon with F1 after entering the buy zone. Only main weapon will be recommended.
Buy menu improvement: Favorite menu added in buy menu UI. Reduce user’s time to purchase their favorite weapon.
Add weapon detail information menu in buy menu. Add shop information to help them to select a weapon.

Feedback UI added for user play when they play scenario.

Indicates Perfect when they succeeded in head shot.

Indicates Combo when they succeeded to kill enemy in consecutive shot.

Allowed activity when a player is dead:
- Chat with survivors: Share pursuit, boss pattern with survivors.
- Can purchase weapon or equipment: Can rearrange the weapon with B button when you die. Purchase standards will based on the current possessed dollar. Dollar will not deduct directly after purchasing, but it will be deducted when a player revives and the item will provide together.
Adjust revival time per level: Allows beginner or low level user to quickly re-participate in the battle to play the game easier than before.

Level	Revival Time
1 - 10	15
11 - 20	20
21 - 30	25
31 - 40	30
41 - 50	35
51 - 60	40
61 - 70	45
71 - 80	50
81 - 90	55
91 - 100	60

Characters and Factions now have different stats in term of:

Health.
Attack.
Mobility.
Kevlar Armor.
Spare Ammo.

Nam	Health	Attack	Speed	Armor	Ammo	Max Level
Mirage	24	24	24	22	21	111
High Elf Natasha	22	24	27	21	21	111
Leader Soi	22	25	21	25	22	111
Special Agent Criss	21	22	27	19	26	111
Drill Instructor Gerard	25	20	20	24	26	111
Yeong Shin	21	26	27	20	21	111
Cyborg	25	20	20	24	26	111
Black Rose Miho	23	24	25	21	22	111
Lifeguard Dominique	21	18	18	25	23	101
Kal-El	25	23	21	28	18	111
Aetheris	26	23	21	26	19	111
Transcendent Fernando	26	24	21	26	18	111
Sonya Lycanthrope	28	24	26	22	15	111
Transcendent Choi Ji Yoon	24	18	26	28	19	111
Dorothy Dark Knight	24	27	23	22	19	111
Lisa	26	22	18	26	18	106
Victor	26	21	16	25	17	101
Ian	21	23	24	17	20	101
Rebecca	24	21	19	21	20	101
Dr. Han	25	22	17	20	21	101
Ha Ly	20	21	23	23	18	101
Soy	18	22	20	21	24	101
Dominique	21	26	19	24	20	106
Henry	21	20	20	23	21	101
Isabelle	21	27	20	21	21	106
Choi Ji Yoon (Limited Edition)	20	20	24	24	17	101
Choi Ji Yoon (Soccer)	22	17	24	26	16	101
Choi Ji Yoon	22	16	24	26	17	101
Natasha (Casual)	21	25	20	22	17	101
Alice (Limited Edition)	22	19	19	26	19	101
Lucia (Special Agent)	24	23	18	18	22	101
May	21	25	20	22	17	101
Criss	26	21	20	17	21	101
Walter	25	17	17	23	23	101
Enzo	24	22	18	21	20	101
Fernando	25	22	19	19	20	101
Keith Icahn	18	24	19	23	21	101
SAF Scout	18	19	26	24	18	101
Max Thacker	20	25	19	22	19	101
Gerard (Sheriff)	18	24	21	19	23	101
Thunder Squad	20	19	18	24	24	101
SAT	19	17	22	25	22	101
PLA	17	19	23	23	23	101
707th Special Mission Battalion	22	24	17	23	19	101
Spetsnaz	24	20	18	24	19	101
GIGN	21	21	21	21	21	101
SAS	21	21	21	21	21	101
GSG-9	21	21	21	21	21	101
Seal Team 6	21	21	21	21	21	101
Anemone	24	26	25	21	19	111
Dragon Knight Kyrix	26	24	24	22	19	111
Super Soldier Jennifer	26	23	25	22	19	111
Boss David Black	22	26	23	21	23	111
Private Erica	22	25	26	19	23	111
Lee Chang	20	28	26	21	20	111
Queen	22	25	26	19	23	111
Pink Heart Shiho	25	22	23	19	26	111
Vacation Alin	18	23	21	19	24	101
Medea	22	26	28	19	20	111
Axion	24	26	26	19	20	111
Pirate Michaela	19	24	21	19	22	101
Rose Phoenix	26	25	22	22	20	111
Transcendent Blair	24	26	26	21	18	111
Transcendent Michaela	21	25	25	19	25	111
Elizabeth Crimson Hunter	19	24	28	18	26	111
Transcendent Yuri	19	28	25	22	21	111
Flora Paladin	27	24	22	23	19	111
Mila	22	26	26	18	18	106
Yuwei	24	23	21	17	20	101
Ace	21	23	19	22	20	101
Jenny	22	25	20	18	20	101
Krieg	20	24	20	20	21	101
Jim	20	26	17	22	20	101
Alin	21	23	26	19	21	106
Gunsmith	20	22	22	20	21	101
Lingling	26	20	20	23	21	106
Michaela (Limited Edition)	17	26	18	20	24	101
Michaela	18	25	21	19	22	101
Jennifer (Uniform)	22	26	22	17	18	101
Yuri (Limited / Soccer)	17	26	23	20	19	101
Blair	20	26	22	21	16	101
Ritsuka (Ghost Bride)	16	23	26	17	23	101
Erika	26	17	19	23	20	101
Carlito	25	22	22	18	18	101
Raven	26	20	23	18	18	101
Spade	17	23	22	17	26	101
David Black (Outlaw)	25	19	18	21	22	101
Vigilante Corps	24	19	22	20	20	101
National Liberation Campaign	16	17	24	24	24	101
Asia Red Army (Soccer)	21	18	24	18	24	101
Red Beret Condottiere	19	24	21	20	21	101
Midwest Militia	21	21	21	21	21	101
Guerilla Warfare	21	21	21	21	21	101
Arctic Avengers	21	21	21	21	21	101
Elite Crew	21	21	21	21	21	101
Phoenix Connexion	21	21	21	21	21	101

Seasons

There are 5 seasons so far in Zombie Scenario mode (noted that extra maps are excluded in the chapters below):

Zombie Scenario 1: Survival

Chapter	Description
Lost City	Story of the special force squad that has been dispatched to find a research group that has lost contact. Goal: Fight against the zombies and survive until the last round.
Double Gate	Survival stage for those survivors in the special force. Goal: Fight against the zombie and survive until the last round.
Trap	The last hint left by the special force squad. It seems that they found another trace, but as soon as they get into they are surrounded by zombies. Goal: Fight against the zombie and survive until the last round.

Zombie Scenario 1: Pursuit

Chapter	Description
Last Clue	Story of the special force squad that has been dispatched to save the advanced troop. Unknown huge monster was waiting for them when they arrived at the place after following the Andrey's clue. Goal: Kill Prototype Phobos.
Chaos	The research group entered inside the laboratory with the mysterious woman's help, encountering yet another monster again. Goal: Kill Siege Type Phobos.
Dead End	The research group received a support request from the allied forces and move to the appointed place to defend. However, the thing that welcomes them in the place was not the allied forces but Oberon. Goal: Kill Oberon.

Zombie Scenario 2

Chapter	Description
Toxicity	Story of LS troop that received a request from Aegis Institute. They have dispatched to Southern America that assumed to have Dr. Rex's trace and... Goal: Kill Dione.
Culvert	Story of LS troop that pursuits for wounded Dione. They entered underground culvert to capture Dione and encounter with countless zombies. Goal: Fight against the zombies and survive until the last round.
Decoy	Senior Researcher Soy recognized that zombies will evolve by themselves and she tried to lure Dione in, however, the thing appeared in front of LS troop was not Dione, but that was great energy of fire. Goal: Kill Revenant.
Angra Nest	The last battle with Dione. LS troop found Dione's hideout and tried to kill defenseless Dione, but, soon a complete type Angra appeared in front of them. Goal: Kill Angra.

Zombie Scenario 3

Chapter	Description
Contact	Story of Vanguard Company's assistant chief of staff for operations, Norman who tried to survive from a laboratory where a mysterious virus spread. Goal: Kill Fallen Titan.
Behind	Story of David Black and Erika who tried to invade inside Vanguard headquarters under Norman's request. Goal: Kill Rusty Scorpion.
Threat	Story of AFC David Black and his team retreating as they are being chased by horde of zombies until they reach into a shelter-like place. Unknown enemy appeared at them when they were waiting for Norman's support. Goal: Defend the central computer and kill Mad Mechanic.
Panic Room	Story of David Black who tried to rescue Erika who was kidnapped by Norman. Analyze the huge boss's weakness that stopped their way to save Erika. Goal: Kill Lost Guardian.

Zombie Scenario 4

Chapter	Description
Encounter	Story of Gerard team who tried to retrieve the left sample after the Vanguard Company incident. They tried to make a contact with the transportation team, however Yeti suddenly appeared to stop them. Goal: Kill Frozen Terror.
Conspiracy	Story of Gerard when he was moving to meet with his client after he joined the Jim's transportation team safely. The client welcomed them frigidly in the laboratory. Goal: Kill Gluttony.
Envy Mask	Story of Red Lizard Jim to discover and reveal the true color of the client. Goal: Defeat the dual-wield sword Neid and heavy artillery Zavist.
Paranoia	Story of Red Lizard Jim, Gerard and their team upon revealing the mystery that Dr. Rex has been hiding once infiltrating into his main research lab and testing facility. Goal: Kill Dr. Rex.

Zombie Scenario 5

Chapter	Description
Omen	Story of Jennifer and her escorts fighting their way through a long abandoned city, searching and destroying anything that they came across with what may remain of one of Dr. Rex's previous failed Super Soldier Project. Goal: Kill Laser Wing.

Honor mission

Mission	Description	Task
[Asura]	None	Finish Zombie Scenario season 1 to 3 in order.
[Killing Machine]	None	Kill 10,000 zombies in one round.
[Undertaker]	None	Kill a total of 1,000,000 zombies.