There are 37 Bronze Trophies, 10 Silver Trophies, 2 Gold Trophies, and 1 Platinum Trophy.
| Unlockable: | How to unlock: |
| ... But No Cigar (Bronze) | Rescue a teammate from a Close Encounter |
| Adaptive Morphology (Silver) | Upgrade every Appearance slot once for a Xenomorph class |
| Adios, Muchachos (Bronze) | Gib two enemies at once |
| Another Bug Hunt (Bronze) | Complete a Challenge |
| Another Glorious Day in the Corps (Bronze) | Complete Distress |
| Anytime, Anywhere (Bronze) | Kill a Crusher without it damaging you |
| Arbitrarily Exterminated (Silver) | Kill 2179 Xenomorphs |
| Bad Feeling About This Drop (Bronze) | Complete Sulaco Falls |
| Coming Outta the Walls! (Bronze) | Kill a Xenomorph climbing on the walls or ceiling |
| Distinguished Service Medal (Silver) | Complete all Challenges |
| Don't Count Me Out (Bronze) | Revive a teammate |
| Dragged Queen (Bronze) | Complete Home |
| Eat This! (Bronze) | Kill a Xenomorph with a shotgun at very close range |
| Entry Prohibited (Bronze) | Kill 10 Xenomorphs that are using vents |
| Field Modified, Kill Certified (Bronze) | Upgrade every slot for a weapon |
| Field Promotion (Bronze) | Earn Rank 2 as a Marine |
| Fire Drill (Bronze) | Arm the emergency release and escape in under 2:30 on Sulaco Falls |
| Game Over, Man! (Silver) | Complete all Campaign levels on any difficulty |
| Heavy Lifting (Bronze) | Defeat the Raven in under 1:10 on Soldier difficulty or higher |
| I Can Handle Myself (Silver) | Purchase all Upgrades for a weapon |
| I Feel Safer Already (Bronze) | Have another player join your party |
| I Heard THAT (Bronze) | Collect all 12 Audio Logs |
| I Like to Keep These Handy (Silver) | Collect all 6 Legendary Weapons |
| I Love the Corps! (Gold) | Earn Rank 60 as a Marine |
| It's a Dry Heat (Bronze) | Kill 3 enemies with a single U4 Firebomb |
| Just a Grunt (Bronze) | Complete Hope in Hadley's |
| Lean and Mean (Bronze) | Earn Rank 20 as a Marine |
| Let's Rock! (Bronze) | Kill 10 Xenomorphs in a game with the M56A2 Smart Gun |
| Love at First Sight (Bronze) | Survive a Close Encounter with a Facehugger |
| Majority Shareholder (Bronze) | Spend 30 Commendations |
| Micro Changes in Air Density (Bronze) | Track 100 hostile targets with the Motion Tracker |
| Mostly Come at Night... (Bronze) | Find Newt's doll |
| Need a Deck of Cards? (Bronze) | Set up a UA 571-C Remote Sentry |
| No Need For Alarm (Bronze) | Complete One Bullet without setting off the alarm |
| No Offense (Silver) | Melee a Lurker that is pouncing toward you |
| Not Bad For a Human (Silver) | Complete all Campaign levels on Hardened difficulty |
| Oorah to Ashes (Bronze) | Collect a Dog Tag |
| Perfect Killing Machine (Bronze) | Upgrade every Loadout slot for a Xenomorph class |
| Personal Friend of Mine (Bronze) | Collect a Legendary Weapon |
| Platinum Trophy (Platinum) | Earn all Trophies |
| Quoth the Raven (Bronze) | Complete The Raven |
| Ready to Fry Half a City (Bronze) | Edit a Marine Loadout |
| Remember the Fallen (Silver) | Collect all 35 Dog Tags |
| Secreted from What? (Bronze) | Kill 5 Spitters without being damaged by acid |
| Short, Controlled Bursts (Bronze) | Defeat all Xenomorphs in the Sulaco hangar bay without them crossing your barricade |
| State of the Badass Art (Gold) | Complete all Campaign levels on Ultimate Badass difficulty |
| Stay Frosty (Bronze) | Complete an entire Challenge category |
| Still Got a Job to Do (Bronze) | Complete Rampart |
| Structural Perfection (Bronze) | Edit a Xenomorph Loadout |
| You Look Just Like I Feel (Silver) | Upgrade every Appearance slot once for your Marine |
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