Call of Duty Extinction is a new online mode only available in CoD: Ghosts. Similar to the Zombie modes of older CoD games, Extinction has you battling through hordes of aliens, while trying to complete various objectives.
Extinction has its own ranking system that is separate from the normal Multiplayer of Call of Duty: Ghosts. Players will earn special unlocks unique to this mode that will help them overcome the waves of aliens that they must face.
How to Unlock Extinction Mode
Extinction is not unlocked by default. Players must play at least one mission of the campaign before it will appear. Simply play through the first level of the game, which takes only 10-15 minutes. After doing so, return to the main menu to find it along with Campaign, Multiplayer and Squads.
In Extinction, players can choose from a wide array of options to customize their experience. This will also help friends make specialized teams, to best maximize their chances of completing a level. Your Loadout consists of 6 slots, with each slot having 4-5 possible options to choose from. Nearly everything is locked at first and players will need to play a few matches to begin unlocking new things to pick from. For more info on Loadouts and the choices you can make, check out the dedicated page, Loadout.
Point of Contact is the first map available in Extinction. This map has you carrying a drill to specific locations, where you will destroy alien hives. This is a large map, with a lot of travelling involved. Enemies will escalate as more hives are destroyed, getting stronger over time and new enemy types appearing.
During each Extinction match, players will get Skill Points. These are used to level up parts of your Loadout. These levels only apply to the current match. Once you finish, the Skill Points are erased and you must re-earn them during the next match.
Skill Points can drastically effect how a part of your Loadout preforms. It is important to communicate with your team so that players are upgrading different parts of their Loadout. Having to much overlap with your teammates will hinder your groups overall performance.
For every kill and major objective completed, players will earn money. Money earned is only kept for that single match, so make sure to spend it as you acquire it.
Money is used to purchase weapons, activate traps on the map or to activate one of your 4 preset abilities. Again, it is important to communicate with your allies before making major purchases. There is nothing worse then spending money on ammo, to find out someone already bought some for the team moments earlier.