| Aerial Superiority - Kill 5 Helghast while in the air (Bronze) | Killed 5 Helghast while airborne using the Jetpack |
| Bring It Down - Defeat the MAWLR (Bronze) | Defeated the MAWLR defending the Space Elevator |
| Cagefighter - Kill 10 Helghast using Brutal Melee (Bronze) | Killed 10 Helaghast using Brutal Melee |
| Close Quarters Killer - Kill 25 Helghast using Brutal Melee (Silver) | Killed 25 Helghast using Brutal Melee |
| Completist - Destroy everything on the MAWLR (Bronze) | Destroyed every destructible weapon on the MAWLR while on foot and on the Intruder |
| Double Trouble - Reach the river in Co-op (Bronze) | Made it to the Corinth River in Co-op mode |
| Eagle Eye - Every Sniper Rifle bullet is a kill (Bronze) | Shot and killed 6 Helghast using the Sniper Rifle without reloading or switching weapons |
| Evening The Odds - Kill 500 Helghast (Bronze) | Kill 500 Helghast |
| Excessive Force - Kill a lone Helghast with the WASP secondary fire (Bronze) | Used the secondary fire function of the WASP launcher to kill a single Helghast |
| Fight To The Last - Kill 1500 Helghast (Silver) | Killed 1500 Helghast |
| Frag Out - Kill 3 Helghast with 1 Frag Grenade (Bronze) | Killed 3 Helghast using 1 fragmentation grenade |
| Frazzle Dazzle - Kill 3 Helghast with one shot from the StA5X Arc Cannon (Bronze) | Used the StA5X Arc Cannon to kill 3 Helghast with one shot |
| Go Down And Stay Down - Destroy the ATAC (Bronze) | Defeated the ATAC outside the Stahl Arms facility |
| Grand Slam - Win a match in 3 multiplayer modes (Gold) | Won a match in Operations, Warzone & Guerrilla Warfare modes |
| Hand To Hand Master - Kill 50 Helghast using Brutal Melee (Silver) | Killed 50 Helghast using Brutal Melee |
| Handy Man - Repair an object (Bronze) | Repaired an object for the first time |
| Iced - Destroy all Ice-Saws and Dropships (Bronze) | Destroyed all 4 Helghast Ice-Saws and all 6 Dropships |
| In Your Face - First Brutal Melee (Bronze) | Performed first Brutal Melee move |
| Into The Lair - Reach the cable car (Bronze) | Reached the cable car and gained access to Stahl Arms South |
| Iron Man - Get a kill with the Exo (Bronze) | Killed a player using the Exo in any multiplayer mode |
| ISA TV - Establish communications (Bronze) | Made contact with Earth |
| Jail Break - Liberate Narville (Bronze) | Liberated Narville from Stahl Arms South |
| Let's Go Home - Destroy Stahl's Cruiser (Gold) | Destroyed Stahl's Cruiser and left the planet on any difficulty |
| Medic! - Revive another player (Bronze) | Revived a friendly player for the first time |
| Minigunned - Destroy all targets (Bronze) | Destroyed everything while using the Minigun on the Intruder |
| Mopping Up - Kill 40 Helghast foot soldiers (Bronze) | Killed 40 or more Helghast foot soldiers on the beach |
| Never There - Sneak past Helghast (Bronze) | Sneaked past all Helghast in the Jungle without alerting any of them |
| No Witnesses - Destroy all dropships on the Highway (Bronze) | Destroy all dropships on the Highway |
| Now It's Personal - Kill 1000 Helghast (Silver) | Killed 1000 Helghast |
| Now You See Me - Kill using Cloak (Bronze) | Killed another player while cloaked |
| One Each - Kill 3 Helghast with Shotgun Pistol, no reloads (Bronze) | Shot and killed 3 Helghast using the Shotgun Pistol without reloading or switching weapons |
| Pilot's Wings - Mid-air kill (Bronze) | Got a mid-air kill using the Jet Pack in any multiplayer mode |
| Pinpoint - Kill the Heavy with an StA-14 (Bronze) | Killed the Heavy using the StA-14 rifle |
| Platinum (Platinum) | Collect all Killzone 3 trophies |
| Power Spike - Nail a Helghast to an exploding object (Bronze) | Used the Boltgun to nail a Helghast to an exploding object |
| Quick Exit - Escape the Oil Rig quickly (Bronze) | Got off the 2nd rig within 2 minutes. |
| Ready For Battle - Complete weapons training (Bronze) | Completed weapons training in Prologue |
| Save The Intruders - Arc APCs destroyed (Bronze) | Successfully assisted with defeating the Arc APCs |
| Sawn Off - Destroy all chasing APC's (Bronze) | Destroyed all chasing SawBlade APC's in the Senlin Beach section |
| Shattered - Destroy all glass in the Labs (Bronze) | Destroy all glass panes in the Stahl Arms South laboratories |
| Smoking Wrecks - Destroy all Tanks on Senlin Beach (Bronze) | Destroyed all the Helghast Tanks in the Senlin Beach section |
| Spiky Personality - Kill a Helghast using a Burster (Bronze) | Killed a Helghast by shooting a Burster plant |
| Spread The Love - Kill 5 Helghast at once using the WASP's secondary fire (Bronze) | Killed 5 Helghast at once using the secondary fire mode of the WASP launcher |
| Spy Game - Kill using Disguise (Bronze) | Killed another player while disguised |
| Stranded Together - Reach the Extraction Point in Co-op (Bronze) | Made it to the Extraction Point in Co-op mode |
| Team Player - Play a match as part of a squad (Bronze) | Joined and completed a match as part of a squad |
| Time For A Dip - Reach the river (Bronze) | Reached the Corinth River with the convoy |
| Turf War - Capture a Tactical Spawn Point (Bronze) | Captured a Tactical Spawn Point for the first time |
| Turn The Tables - Melee Kill a Capture Trooper (Bronze) | Killed a Capture Trooper using melee |
| Up Close & Personal - Brutal Melee another player (Bronze) | Used the Brutal Melee move against another player |
| Victory - Complete Campaign on Elite (Gold) | Completed every mission on Elite difficulty |
| You Drive - Drive the Mobile Factory (Bronze) | Took over the controls of the Mobile Factory |
