Extinction

Extinction is a game mode featured in Call of Duty: Ghosts. The game mode features up to four players fighting Cryptids (enemies similar to aliens) in a post-apocalyptic world. Players have objectives, which are to destroy cryptid Hives and complete Challenges. Players also earn money by killing cryptids, destroying Hives or searching Search Piles. The money earned from these can be used to purchase additional guns placed through out the map (similar to Zombies) and use abilities selected pre-game.

The traps that can be used against the cryptids are the electrical fences and fire traps. The traps cost money to set and only last for a short period of time. The traps do not have a cooldown time and can be used as often as the player wants provided they have the money needed.

There are four classes for the player to choose from, Weapon Specialist, Tank, Engineer, and Medic. For each class there is a specific set of unique abilities/perks that the player will be able to utilize for themselves or their team. There is also loadout slots that players can choose different options from including: Pistol, Ammo Type, Team Support, Strike Package and Equalizer, the player also passively has On the Go and Resilience. Once the player completes level thirty, they will automatically prestige, allowing them to equip an additional Relic, once per prestige. The mode is not infinite round based like Zombies but has an ending and is much more linear, although the ending is optional.

If a player receives enough damage they will fall to the ground (frequently referred to as "down"). During this period of time the player still has the option of using their secondary weapon. However, another teammate must revive the fallen teammate or they will bleed out and die. When a player dies they will be in spectate mode and a dog tag will appear where their body was located. Nevertheless, it is still possible for another player to revive the dead player at their dog tag. In solo, at the start of the game, the player can be downed once and revive themselves after a couple of seconds, but next time they will directly die. However, when a barrier hive is destroyed, the player receives an extra chance; this means that the player can be downed a maximum of three times in a single game before dying.

Money System
The maximum money a player can carry is $6000 ($3000 with the Smaller Wallet Relic, $8000 with the +4 Engineer upgrade or $4000 with both). The player will receive money after a Hive is destroyed, based on their score earned while it was being destroyed. A supply drop of $3000 ($2250 with Smaller Wallet Relic) will be dropped after a Barrier Hive is destroyed. Positive multipliers:
 * 1.5x: Killed with a critical hit
 * 1.5x: Killed with melee

Negative multipliers:
 * 0.75x: Smaller Wallet Relic
 * 0.5x: Killed with a hit to the armor (Does not apply with Armor Piercing Ammo)
 * 0.5x: Assisted kill

Maps

 * Point of Contact
 * Nightfall

Enemies

 * Scout
 * Hunter
 * Scorpion
 * Seeker
 * Rhino
 * Leper
 * Phantom
 * Breeder

Ranks
Rank unlocks:
 * Rank 1 - Weapon Specialist, P226, Normal Ammo, Team Explosives, I.M.S., Portable Turret
 * Rank 2 - Stun Ammo
 * Rank 3 - Tank, Multiplayer Background
 * Rank 4 - Feral Instincts
 * Rank 5 - Engineer
 * Rank 6 - Grenade Turret
 * Rank 7 - .44 Magnum
 * Rank 8 - Armor
 * Rank 9 - Mortar Strike
 * Rank 10 - Medic
 * Rank 11 - Multiplayer Background
 * Rank 12 - Incendiary Ammo
 * Rank 13 - M9A1
 * Rank 14 - Team Booster
 * Rank 15 - Crowd Control
 * Rank 16 - MP-443 Grach, Multiplayer Background
 * Rank 17 - Random Supplies
 * Rank 18 - Trinity Rocket
 * Rank 19 - Multiplayer Patch
 * Rank 20 - Explosive Ammo, Multiplayer Background
 * Rank 21 - Multiplayer Background
 * Rank 22 - Sentry Gun
 * Rank 23 - MK32 Launcher
 * Rank 24 - Multiplayer Patch
 * Rank 25 - Armor Piercing Ammo
 * Rank 26 - Multiplayer Background
 * Rank 27 - Multiplayer Patch
 * Rank 28 - Vulture
 * Rank 29 - Death Machine
 * Rank 30 - N/A
 * Prestige 1, Rank 1 - 1st Relic Slot
 * Prestige 2, Rank 1 - 2nd Relic Slot
 * Prestige 3, Rank 1 - 3rd Relic Slot
 * Prestige 4, Rank 1 - 4th Relic Slot
 * Prestige 5, Rank 1 - 5th Relic Slot, Multiplayer Patch

Achievements/Trophies
Point of Contact Achievements/Trophies:

No Man Left (20 / Bronze Trophy ) - Escape with all four players

Sprinter (20 / Bronze Trophy ) - Reach the exfil chopper with 1 minute and 30 seconds or more remaining on the clock.

Made it Out Alive (20 / Bronze Trophy ) - Escape 1st time

Completionist (25 / Bronze Trophy ) - Complete all Extinction challenges and escape.

Cabin Fever (10 / Bronze Trophy ) - Make it to the cabin.

City Dweller (20 / Bronze Trophy ) - Make it to the city.

Any Means necessary (40 / Bronze Trophy ) - Get 50 kills with the electric fence and fire traps in a single game.

Trash Picker (20 / Bronze Trophy ) - Scavenge 40 items in a single game.

Throttled Escape (10 / Gold Trophy ) - Escape using a relic.

Nightfall Achievements/Trophies:

Pushing Ahead (20 / Bronze Trophy ) - Gain access to the Compound area in Nightfall.

Weapon Facility (20 / Bronze Trophy ) - Gain access to the Facility in Nightfall.

Survived Nightfall (20 / Bronze Trophy ) - Kill the Breeder for the first time in Nightfall.

Speed Slayer (20 / Bronze Trophy ) - Kill the Breeder in less than 5 minutes in Nightfall.

Turnabout is Fair Play (20 / Bronze Trophy ) - Kill 50 Cryptids with the Venom-X weapon in Nightfall.

Nightfall Completionist (30 / Silver Trophy ) - Complete all challenges and kill the Breeder in Nightfall.

Throttled Survival (30 / Silver Trophy  ) - Kill the Breeder while using a Relic in Nightfall.

Phantom Exterminator  (20 / Bronze Trophy ) - Kill 5 Phantoms in one game.

Pea Shooter  (20 / Bronze Trophy ) - Kill a Rhino with only a pistol in Nightfall.

Undiscovered Truths (30 / Bronze Trophy ) - Found all intel.

Story
Main Article: Extinction (mode)/Story 

Trivia

 * Skill points spent in one game do not carry over to the next. Each classes skill set is reset at the start of every game.
 * The soldier the player plays as will point out when a new cryptid type is spotted.
 * While downed, the player is still able to move turrets and the I.M.S..
 * When reviving another player, the player can rotate their character while still reviving the downed player.
 * The player is still able to move while being revived or while repairing the Drill.
 * If a player dies they will only lose their tactical and lethal equipment.
 * The player can drop money in increments of $1000 by holding the ADS and jump buttons for two seconds.
 * The latest update allowed players to have a customizable character (uniform, headgear, patches, etc.).