Extinction is one of the four main game mode's in Call of Duty: Ghosts. This is a co-op game mode that consists of 4 players battling aliens in a post-apocalyptic world. Players kill aliens to earn money to buy equipment to help there team and them self's survive trough the game and earn skill points to upgrade the equipment they buy. The objective when playing this game mode is to destroy all 14 hives, detonate the nuke, and make it back to the chopper alive.

There are 6 types of enemies that you will be batting to survive this game mode. I have made a list of the types of aliens you will be battling so that you get a description and picture of the types of aliens.

Types of aliens in extinction:
- Scouts: Scouts are the most common of the aliens in Extinction and are seen the most trough out the map.
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- Hunter: Hinters are look very similar to the scouts but aren't the same alien. Hunters are mid-sized aliens that look like Scouts but with a red mouth. Although they look like Scouts they are much more effective than them. Also, they only spawn in the town and cabin part of the map.
[Sorry but i cant find a picture for a Hunter. If i find one i will update the post.]
Scorpion: Scorpions are for legs creatures with round mouths and long, sharp, fang like teeth. There called scorpions because they shot acid out there tails as there attack. They have yellow eyes, yellow sacs on there tails and back witch is where there weak spot is. Shot them in there back and they die very quick. They jump on and walk on the walls of the buildings and also try to take down the chopper at the barrier hives.
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Seeker: Seekers are small red aliens they don't bite and or shoot acid at you. They simply run up to your feet and blow them self's up as there attack. They are very fast and when they attack you they take a lot of health away.
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- Rhino: The Rhinos attack includes charging at a player and slaming there hands down on a player if they get close enough to you for a moderate period of time. There health is very high and they have thick armor on and there weak spots are there hands and feet.
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There are 30 levels in Extinction and 5 Prestiges. Every level in the first 29 levels you unlock something also every time you prestige you unlock a background within multi-player.

What you unlock within the first 29 levels:
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Pictures of all 5 prestige emblems:
Sorry but i cant show you them because i couldn't find any. I will update this topic if i find any pictures of them.

As you rank up in Extinction you will unlock new classes equipment such as the Sentry Gun, Explosive Ammo, ETC. Once your in the game you use the skill points to upgrade that equipment that you have unlocked to up you progress within the game.

-'s indicates the specific class and what that class selection does.
*'s indicates the 1st - 4th upgrade and what you get when you purchase that upgrade in game with the skill points you have earned.

Classes

- Weapon Specialist: 20% more bullet damage.

* 1st Upgrade: Swap weapons faster, move faster while ADS(Aiming Down Sights), and fast offhand use. Cost: 1 Skill Point
* 2nd Upgrade: Faster ADS(Aiming Down Sights). Cost: 1 Skill Point
* 3rd Upgrade: Faster Reloading. Cost: 2 Skill Points
* 4th Upgrade: 50% more bullet damage and less spreed. Cost: 3 Skill Points

- Tank: 20% more health.

* 1st Upgrade: Melee attacks do 25% more damage. Cost: 1 Skill Point
* 2nd Upgrade: 50% more health. Cost: 1 Skill Point
* 3rd Upgrade: 75% more health and 50% more melee damage. Cost: 2 Skill Points
* 4th Upgrade: 100% more health and 100% more melee damage. Cost: 3 Skill Points

- Engineer: Provide armor for the drill and earn more bonus cash.

*1st Upgrade: Repair the drill faster. Cost: 1 Skill Point
*2nd Upgrade: Traps earn cash back.(When you get kills with traps you get money for those kills. Cost: 1 Skill Point
*3rd Upgrade: Increased protection while repairing(If the aliens take the drill health down to low the you have to repair it) the drill and traps last longer. Cost: 2 Skill Points
*4th Upgrade: Increased trap and explosive damage and your able to hold $2000 extra dollars. Cost: 3 Skill Points

- Medic: Revives team mates more quickly.

*1st Upgrade: Move faster and increased protection while reviving others. Cost: 1 Skill Point
*2nd Upgrade: Longer Sprint and teammates near you regenerate health faster. Cost: 1 Skill Point
3rd Upgrade: Ignore ongoing damage from gas clouds.(The gas clouds from the Scorpions spit at you with there tails). Cost: 2 Skill Points
4th Upgrade: Very fast movement and unlimited distance for you team to regenerate health faster. Cost: 3 Skill Points

Loadouts
Types of Pistols:
Pistols are the types of guns you start the game out with. There are 4 main types and all good pistols but you should chose the one the suites you the best.

- P226
- .44 Magnum (Unlocked at level 7)
- M9A1 (Unlocked at level 13)
- MP-443 Garach Pistol (Unlocked at level 16)

Types of Ammo:
Ammo can be is one of the most useful things when playing Extinction. As ypu level up you unlock better ammo. NOTE: When you run out of special ammo(Any type of ammo other than the regular ammo) you revert back to the regular ammo.(Any regular ammo you had before you picked up special ammo you will keep until you run out of if. Then you use the regular ammo you had before you picked up the special ammo)

- Regular Ammo
- Stun Ammo (Unlocked at level 2)
- Incendiary Ammo (Unlocked at level 12)
- Explosive Ammo (Unlocked at level 20)
- Armor Piercing Ammo (Unlocked at level 25)

Team Support:
A small package of support you can buy and place down for your team.

- Team Explosives
- Feral Instincts (Unlocked at level 4)
- Armor (Unlocked at level 14)
- Team Booster (Unlocked at level 14)
- Random Supplies (This drops random supplies such as Canister Bombs, Semtex Grenades, ETC.) (Unlocked at level 17)

Strike Package:
This is kill streak like support and i recommend using the sentry gun fully upgraded for the fact that there really good and you can place two of them down at the same time.

- I.M.S
- Mortar Strike (Unlocked at level 9)
- Trinity Rocket (Unlocked at level 18)
- Sentry Gun (Unlocked at level 22)
- Vulture (Unlocked at level 28)

Equalizer:
I'd say these last set of load out are the ones that are more defenseish. I think there the most un-used load out but the grenade turret can be useful when destroying the barrier hives.

- Portable Minigun Turret
- Grenade Turret ( Unlocked at level 6)
- Croud Control (Riot Shield) (Unlocked at level 15)
- Mk32 Launcher (Unlocked at level 23)
- Death Mechine (Unlocked and level 29)

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To be able to access any relics you must first be at least prestige 1. They make the game more difficult but at the same time give you an added score bonus with ranks you up more qickly.

Once you prestige you have the ability to use one relic at a time and every time you prestige you get to use on additional relic. So when you finally hit 5th prestige you are able to use all 5 relics at once.

Here's a list of all the relics and how they effect the way you play Extinction.

Take more damage: Aliens inflict more damage when they hit you.

Pistols only: You are only allowed to use you pistol the entire match.

Smaller wallet: You earn and carry less cash. (You can only carry a maximum of $3000 dollars at a time)

Mortal: No class selection is available.

Do less damage: Inflict less damage against aliens.

Money is what you earn when you kill an alien, finish a round, and other various things.
Most importantly it how you survive.

You use money to buy guns, purchase equipment, team boosters, and many other things so you want to make sure you spend it wisely.

Skill points are what you use to upgrade yous class and load out. They can be obtained by destroying a barrier hive, hive or completing the challenge at each hive other than the barrier hive. You dot get a challenge at barrier hive.

Special finds in Extinction are found by looking around the map and finding a little green box or blue bag. When you find the things you press x button on the controller to search them and you can find special items such as the Hypno Knife, SOLFLAM, ETC.

There is currently only one map in Extinction called Point of Contact. That is the only map available as of now. The DLC will include new Extinction maps in the future do don't worry about playing on one map the year because there will be DLC maps.

There are 9 achievements/8 bronze and 1 gold Trophies in Extinction. There a list of them below.

- No man left
* 20G/Bronze
= Escape with all 4 players.

- Sprinter
* 20G/Bronze
= Escape with at least 1:30 remaining on the clock.

- Made it out alive
* 20G/Bronze
= Escape for the 1st time.

- Completionist
* 25G/Bronze
= Complete all challenges and escape.

- Cabin Fever
* 10G/Bronze
= Made it to the cabin.

- City Dweller
* 20G/Bronze
= Made it to the city.

- Any means necessary
* 40G/Bronze
= Get 50 kills with the electric fence and fire traps in a single game.

- Throttled Escape
* 20G/Bronze
= Escape using a relic.

- Trash Picker
* 20G/Bronze
= Scavenge 40 items in a single match.