Finding collectibles...
	Marine: Avoiding instant kills...
	Skin Unlocks...
	Steam achievements...

As an Alien or Predator, activate your Focus to have collectibles appear as flashes on the HUD.

In multi-player mode, keep your back against walls to prevent getting killed instantly by Aliens or Predators.

These are the ranks you need to achieve to unlock each skin.

Skin	How to unlock
Alien - Nethead	Achieve Rank 34
Alien - Praetorian	Achieve Rank 19
Alien - Ridged	Achieve Rank 10
Alien - Warrior Dome	Achieve Rank 04
Marine - Connor	Achieve Rank 05
Marine - Gibson	Achieve Rank 02
Marine - Johnson	Achieve Rank 22
Marine - Moss	Achieve Rank 13
Marine - Rookie	Achieve Rank 28
Predator - Claw	Achieve Rank 03
Predator - Hunter	Achieve Rank 16
Predator - Spartan	Achieve Rank 31
Predator - Stalker	Achieve Rank 07
Predator - Wolf	Achieve Rank 25

Complete the following tasks to unlock the corresponding achievement. To view your achievements and stats in Steam, select "Community", then "My profile", then "View all my games", then the game and view stats.

Achievement	How to unlock
...That's A Promise	Get Tequila to surgery.
Ain't Got Time to Bleed	Heal or regenerate 30 blocks of health in Survivor.
Alien vs Predator	Create a new species.
Breaking and Entering	Find a way into the Research Lab.
Breaking Quarantine	Escape from the Research Lab.
Club hopper	Survive The 'Party' at The Club.
Come to Mama	Liberate the Matriarch.
Elite Sniper	Kill 10 enemies with head shots from the scoped rifle.
Exit Strategy	Escape from C-Block.
Extinction Agenda	Destroy the Abomination.
Eyes of The Demon	Retrieve the ancient mask.
Fallen Comrade	Find the Youngbloods in the Jungle.
Fortune and Glory	Find all 45 Predator trophy belts.
Game Over, Man!	Complete all three Campaigns.
Get to The Chopper!	Recover Weyland's datapad.
Grim Reaper	Harvest all available civilians in the Alien Campaign.
Grunt Hunt	Wipe out all of the Marines in the Colony.
Gunslinger	Kill 30 enemies with the pistol.
Harsh Language	Discover all 67 Audio Diaries.
I Admire its Purity	Complete Alien Campaign on Hard difficulty setting.
I Like to Keep This Handy	Kill 2 enemies with one shot with the shotgun.
I LOVE the Corps!	Complete Marine Campaign on Nightmare difficulty setting.
I Will Never Leave You...	Locate Tequila.
It Ain't No Man	Complete Predator Campaign on Hard difficulty setting.
It Uses The Jungle	Find a way through Gateway.
Let's Rock!	Kill 5 enemies with one burst from the smartgun.
Magnificent, Isn't It?	Complete Alien Campaign on Nightmare difficulty setting.
Matter of Honor	Discover the Elite Predator's fate.
Not Bad for A Human	Get all the Aliens vs Predator achievements.
One Big Bug	Defeat the Praetorian.
One Ugly Mother	Complete Predator Campaign on Nightmare difficulty setting.
Persecution Complex	Achieve Persecutor status more than once in any Ranked Match.
Quite A Specimen	Destroy all 50 Royal Jelly Containers.
Real Nasty Habit	Get 18060 XP in Ranked Matches.
Reclaimer	Retrieve the second artifact.
Regicide	Defeat the Matriarch.
Scatter Shot	As a team, kill 20 enemies in under 60 seconds in a Survivor match..
Serial Killer	Win 10 Ranked Matches in any Deathmatch mode.
Spin Doctor	Kill two enemies with one throw of the Battle Disc.
Stay Frosty	Complete Marine Campaign on Hard difficulty setting.
Stick Around	Kill 20 enemies with the Combi Stick.
The Six Pack	Play with six friends in a Ranked Match.
The Uninfected	Finish a Ranked Infestation match as the only remaining prey.
Under Pressure	Solve the riddle of the Ruins.
Very Tough Hombre	Kill 10 enemies in a row without dying in a Ranked Match.
Welcome to The Party	Get 6000 XP in Ranked Matches.
Welcome to The War	Play and complete your first Ranked Match in standard Deathmatch mode.
World of Hurt	Survive trial by combat.
You Have My Sympathies	Help Van Zandt.