Bronze

Club Hopper
Survive The 'Party' at The Club

Exit Strategy
Escape from C-Block

You Have My Sympathies
Help Van Zandt

Regicide
Defeat the Matriarch

I Will Never Leave You…
Locate Tequila

…That's A Promise
Get Tequila to surgery

One Big Bug
Defeat the Praetorian

Come to Mama
Liberate the Matriarch

Breaking Quarantine
Escape from the Research Lab

Grunt Hunt
Wipe out all of the Marines in the Colony

Under Pressure
Solve the riddle of the Ruins

Grim Reaper
Harvest all available civillians in the Alien Campaign

It Uses The Jungle
Find a way through Gateway

Fallen Comrade
Find the Youngbloods in the Jungle

Matter of Honor
Discover the Elite Predator's fate

Eyes of The Demon
Retrieve the ancient mask

World of Hurt
Survive trial by combat

Breaking and Entering
Find a way into the Research Lab

Reclaimer
Retrieve the second artifact

Stay Frosty
Complete Marine Campaign on Hard difficulty setting

I Admire its Purity
Complete Alien Campaign on Hard difficulty setting

It Ain't No Man
Complete Predator Campaign on Hard difficulty setting

Quite A Specimen
Destroy all 50 Royal Jelly Containers

Fortune and Glory
Find all 45 Predator trophy belts

Scatter Shot
As a team, kill 20 enemies in under 60 seconds in a Survivor match

I Like to Keep This Handy
Kill 2 enemies with one shot with the shotgun

Spin Doctor
Kill two enemies with one throw of the Battle Disc

Let's Rock!
Kill 5 enemies with one burst from the smartgun

Elite Sniper
Kill 10 enemies with head shots from the scoped rifle

Stick Around
Kill 20 enemies with the Combi Stick

Welcome to The War
Play and complete your first Ranked Match in standard Deathmatch mode

Killer Instinct
Win your first Ranked Match in standard Deathmatch mode

Very Tough Hombre
Kill 10 enemies in a row without dying in a Ranked Match

Persecution Complex
Achieve Persecutor status more than once in any Ranked Match

Ain't Got Time to Bleed
Heal or regenerate 30 blocks of health in Survivor

Silver

Game Over, Man!
Complete all three Campaigns

Get to The Chopper!
Recover Weyland's datapad

Alien vs Predator
Create a new species

Extinction Agenda
Destroy the Abomination

I LOVE the Corps!
Complete Marine Campaign on Nightmare difficulty setting

Magnificent, Isn't It?
Complete Alien Campaign on Nightmare difficulty setting

One Ugly Mother
Complete Predator Campaign on Nightmare difficulty setting

Harsh Language
Discover all 67 Audio Diaries

Gunslinger
Kill 30 enemies with the pistol

Serial Killer
Win 10 Ranked Matches in any Deathmatch mode

The Six Pack
Play with six friends in a Ranked Match

The Uninfected
Finish a Ranked Infestation match as the only remaining prey

Welcome to The Party
Get 6000 XP in Ranked Matches

Gold

Real Nasty Habit
Get 18060 XP in Ranked Matches

Platinum

Not Bad for A Human
Get all the Aliens vs Predator trophies

There are 35 Bronze, 13 Silver, 1 Gold and 1 Platinum, totalling to a nice 50 trophies.