Call of Duty: Zombies World

Call of Duty: Zombies World is a zombie-apocalyptic role-playing FPS video game developed by Treyarch and published by Activision and Bethesda Softworks. It is based on Zombies mode in an open-world style.

Classes

 * Tank Dempsey AKA the Marine: Tank Dempsey is an American Marine who fought in the U.S. Marine Corps, being an American hero who favored American weaponry. His best for automatic firearms and his starting melee weapon is a Combat Knife.
 * Nikolai Belinski AKA the Menace: Nikolai Belinski is an Russian Red Army Sergeant who fought for the Red Army and was a feared soldier, tending to crack jokes and has a very keen survival instinct. His best for blunt melee weapons and his starting melee weapon is a Sledgehammer.
 * Takeo Masaki AKA the Samurai: Takeo Masaki is an Japanese Imperial Army Captain who fought for the Imperial Army and was a high quality combatant, who usually claims of his honor. His best for bladed melee weapons and his starting melee weapon is a Katana.
 * Edward Richtofen AKA the Doctor: Edward Richtofen is an German Nazi scientist part of Group 935, and a sociopath and psychopath with a desire for violence, often laughing manically at killing. His best for non-automatic firearms and his starting melee weapon is a Meat Cleaver.

Perk Trees

 * Juggernog: Increases the player's health from 100 to 150 at rank one, 150 to 200 at rank two, 200 to 225 at rank three, 225 to 250 at rank four, 250 to 300 at rank five, 300 to 350 at rank six, 350 to 400 at rank seven, 400 to 475 at rank eight, 475 to 500 at rank nine and 500 to 600 at rank ten.
 * Quick Revive: Decreases the player's revive time by 25% at rank one, decreases the player's revive time by 50% at rank two, allows the downed player to use primary weapons while downed at rank three, allows the downed player to use equipment while downed at rank four, decreases the player's revive time by 75% at rank five, allows the player to shoot at downed players to instantly revive them at rank six and allows the player to self revive first time downed at rank seven.
 * Speed Cola: Decreases the player's reload time by 20% at rank one, decreases the player's building time by 60% at rank two, decreases the player's weapon swap time by 75% at rank three, decreases the player's reload time by 50% at rank four, increases the player's speed at aiming down sights by 65% at rank five and decreases the player's reload time by 68% at rank six.
 * Double Tap: Increases the player's fire rate by 33% at rank one, increases the player's fire rate by 46% at rank two, increases the player's fire rate by 50% at rank three, increases the player's fire rate by 66% at rank four and increases the player's damage with firearms by 50% at rank five.
 * PhD Flopper: Increases the player's fall damage resistance by 25% at rank one, increases the player's explosive damage resistance by 25% at rank two, increases the player's explosive damage resistance by 36% at rank three, increases the player's fall damage resistance by 38% at rank four, increases the player's fall damage resistance by 56% at rank five, increases the player's explosive damage resistance by 60% at rank six and the player sliding has a chance for an explosion to go off to damage nearby enemies at rank seven.
 * Stamin-Up: Increases the player's movement speed by 7% at rank one, increases the player's sprint duration by 50% at rank two, increases the player's movement speed while aiming down by 56% at rank three, increases the player's movement speed by 26% at rank four, increases the player's movement speed by 45% at rank five, increases the player's sprint duration by 100% at rank six, increases the player's movement speed by 67% at rank seven and increases the player's sprint duration by 150% at rank eight.
 * Mule Kick: Increases the player's inventory size at rank one, allows the players to carry three weapons instead of two at rank two, increases the player's inventory size at rank three, increases the player's inventory size at rank four, increases the players to carry four weapons at rank five, increases the player's inventory size at rank six, increases the player's inventory size at rank seven and increases the player's inventory size at rank eight.
 * Deadshot Daiquiri: Increases the player's hip-fire accuracy by 26% at rank one, increases hip-fire accuracy by 38% at rank two, removes idle sway on sniper rifles at rank three, reduces recoil on weapons by 35% at rank four, increases hip-fire accuracy by 50% at rank five, reduces recoil on weapons by 50% at rank six, increases hip-fire accuracy by 65% at rank seven, reduces recoil on weapons by 76% at rank eight and aiming down adjusts the aim assist to target enemies' heads instead of torsos for most weapons at rank nine.
 * Electric Cherry: Creates a lethal electric shockwave when reloading weapons at rank one, the electric shockwave's damage is increased by 25% and stuns nearby enemies longer at rank two, the electric shockwave's damage is increased by 50% and stuns nearby enemies longer at rank three and the electric shockwave's damage is increased by 75% and stuns nearby enemies longer at rank four.
 * Vulture Aid Elixir: Able to see wall weapons, places to draw chalk weapon outlines, important sources and Mystery Box through walls over a short distance at rank one, Zombies' eyes glow brighter to be seen easier at rank two, Zombies will occasionally drop small packets of ammo or points at rank three and their is a chance for Zombies to release a cloud of green gas upon death which will cause players standing inside it to be temporarily ignored by enemies at rank four.
 * Widow's Wine: Increases the player's melee damage is increased by 18% at rank one, allows the player to create and throw special grenades which entangle enemies in strong webs to stun or even damage them at rank two, increases the player's melee damage by 29% at rank three, the special grenades will be dropped when players are attacked at rank four, increases the player's melee damage by 43% at rank five, increases the player's melee damage by 57% at rank six, special grenades will stun enemies for longer and a higher chance to kill at rank seven and melee damage is increased by 69% at rank eight.