Start the single player Campaign mode under the Regular or higher difficulty level. Complete the "Ghost Stories", "Brave New World", "No Man's Land", and "Struck Down" missions to unlock the "Extinction Mode" choice at the main menu. You can also unlock Extinction mode when you start Multiplayer Career mode and reach level 5.
Complete one of the following achievements to collect their Xbox Live Gamerscore points:
Unlockable: --- How to Unlock:
All or nothing (20 GP) --- Gather the troops. (Complete "All or Nothing" on any difficulty.)
Atlas Falls (25 GP) --- Distract the Federation Fleet. (Complete "
" on any difficulty.) Atlas Falls
Audiophile (15 GP) --- Collect all 18 Rorke files.
Birds of Prey (10 GP) --- Capture Rorke (Complete "Birds of Prey" on any difficulty.)
Blimey O'Riley (10 GP) --- Pounce on 10 enemies whilst controlling Riley.
Brave New World (10 GP) --- Rendez-vous in
(Complete "Brave New World" on any difficulty.) Fort Santa
Burn Baby Burn (25 GP) --- Destroy 80 fuel containers.
Carbon Faceprint (10 GP) --- Catch the photocopier with your face.
Clockwork (25 GP) --- Hack the system (Complete "Clockwork" on any difficulty.)
Cog in the machine (35 GP) --- Kill 5 enemies without being detected before infiltrating Black Zone.
David & Goliath (20 GP) --- Take down the LCS on the first go.
Deep Freeze (25 GP) --- Drop 8 vehicles into ice holes.
End of the Line (20 GP) --- Storm the factory (Complete "End of the Line" on any difficulty.)
End of your rope (20 GP) --- Cut a grappling hook rope with an enemy on it.
Federation Day (10 GP) --- Gather intel on Rorke. (Complete "Federation Day" on any difficulty.)
Fly-by-wire (20 GP) --- Take out 3 out of 3 helicopters with the remote missile.
Ghost Stories (5 GP) --- Escape. (Complete "Ghost Stories" on any difficulty.)
Go Ugly Early (10 GP) --- A-10 strafe 50 enemies.
Grindin' (40 GP) --- Blow the pressure valves on your first attempt.
Homecoming (10 GP) --- Defend LA. (Complete "Homecoming" on any difficulty.)
Into the Deep (20 GP) --- Destroy the enemy ship (Complete "Into The Deep" on any difficulty.)
It Came from Below! (10 GP) --- Kill 6 enemies with the knife while underwater in "Legends Never Die".
Jack-pot (20 GP) --- Destroy 21 slot machines.
Jungle Ghosts (25 GP) --- Finish the mission without breaking stealth.
Legends Never Die (10 GP) --- Hunt down Almagro. (Complete "Legends Never Die" on any difficulty.)
Loki (20 GP) --- Commandeer the enemy space station. (Complete "Loki" on any difficulty.)
No Man's Land (10 GP) --- Make it to
. (Complete "No Man's Land" on any
difficulty.) San Diego
Piece of cake (100 GP) --- Storm the common room and kill everyone without taking damage on Veteran.
Safeguard (20 GP) --- Reach round 20 in Safeguard.
Severed Ties (20 GP) --- Destroy the Federation's satellite array. (Complete "Severed Ties" on any difficulty.)
Sleeping Beauty (10 GP) --- Kill sleeping enemy in face down rappel section
Spatial Awareness (10 GP) --- Kill your first enemy in the Call of Duty Ghosts campaign.
Struck Down (10 GP) --- Find
. (Complete "Struck Down" on any difficulty.) Ajax
The Ghost Killer (20 GP) --- Confront Rorke (Complete "The Ghost Killer" on any difficulty.)
The Hunted (25 GP) --- Make it out alive (Complete "The Hunted" on any difficulty.)
They look like ants (20 GP) --- Destroy all enemy ground targets and kill no allies with the rods.
Tickets please (20 GP) --- Shoot the grapple guys off the side of the train.
Waste Not (10 GP) --- Every shot with the remote sniper kills a person or vehicle.
You've earned it (40 GP) --- Earn the mask. Finish the campaign on Veteran.
Complete one of the following Secret achievements to collect their Xbox Live Gamerscore points:
Unlockable: --- How to Unlock:
Any Means necessary (40 GP) --- Get 50 kills with the electric fence and fire traps in a single game.
Cabin Fever (10 GP) --- Make it to the cabin.
City Dweller (20 GP) --- Made it to the city.
Completionist (25 GP) --- Complete all Extinction challenges and escape.
Made it Out Alive (20 GP) --- Escape 1st time.
No Man Left (20 GP) --- Escape with all four players.
Sprinter (20 GP) --- Reach the exfil chopper with 1 minute and 30 seconds or more remaining on the clock.
Throttled Escape (10 GP) --- Escape using a relic.
Trash Picker (20 GP) --- Scavenge 40 items in a single game.
To unlock the Ghillie suit in Multiplayer, select "Weapon Challenges" to see if the "Chrome Barrel Master" challenge is active. If it says "Challenge Inactive", go to "Operations" and spend one Squad Point to get new challenges. Repeat this process until the "Chrome Barrel Master" challenge is active. Once done, complete the "Chrome Barrel Master" challenge to unlock the Ghillie suit.
Easy "Sprinter" achievement
This can just be performed in Extinction mode. You initially need to ruin all 12 hives to unlock the computer system that starts the exfiltration launch procedure. The computer system will generate right beside the last hive, and all players need to trigger it at the same time. You will have 2 minutes and 30 seconds to obtain back to the helicopter in the beginning area. Meteorite barricades will obstruct your method, however they will instantly break down after 30 seconds, and there are just 2 of them. You will likewise be assaulted by lots of Rhinos. They are greatly armored-- so make use of armor breaking ammunition to eliminate them. Completely updated sentry guns are really practical, as they sidetrack and harm the Rhinos. Deploy completely updated shield vests if your health gets reduced. If you are running and a Rhino attacks you from behind, Shield can be particularly helpful. Make certain all players have armor vests in their loadout to stay clear of decreasing.
Secret music on Federation Day
There is hidden music that plays during the Federation Day level of the campaign. After rappelling down the building, head downstairs into one of the office sections of the building and kill the enemies. Listen carefully to hear an instrumental version of the song that plays at the end of the game, by Eminem. It is easier to hear if you have a nice headset, so be sure to listen carefully.
In Extinction, Shoot an 'L', then an 'O', then another 'L' on the "Gil's Lodge Motel" sign to start the Golden Aliens easter egg that lasts for 90 sec. and can be repeated.
Zelda and Doctor Who easter eggs
Throughout the "Federation Day " campaign objective, after you enter the "CARANI" door, you can discover a trophy in the shape of The Physician's TARDIS with the words "Award for Largest Interior with Smallest Outside", and alongside it a Zelda rupee-shaped trophy with the words "for most bushes cut and pots smashed". There's likewise a trophy poking enjoyable at the entire "world ending in 2012" event.
Call of Duty: Modern Warfare Reference
In the goal "
," you'll breach a leisure room. There, you ought
to see an arcade machine called Call of Duty: Modern Warfare. Atlas Falls
Alien dolls easter egg
While playing Chapter 1: Point Of Contact in Extinction mode, grab the sniper rifle and find the "Gil's Lodge Motel" neon sign in the first area of the game. Shoot the letters "L", "O", and "L" (in order) in the word "Lodge" on that sign with the sniper rifle. If done correctly, the message "LOL" will appear in the center of the screen and any alien shot will temporarily explode into golden stuffed alien dolls. Note: This doesn't always work.