There are 59 Trophies that can be collected.

BRONZE

Captain
Complete all levels on the easy difficulty

Toothpick Master
20 kills with the M32 combat knife

Backstabber
20 kills with the FSK-7 Fury

Bullheaded
20 headshots with the M4 Semi-Automatic Pistol

Tripletapper
Get 3 headshots in one magazine, using the secondary fire on the lvP-18 Tropov pistol

3 Birds With One Stone
Kill 3 Helghast with one cooked M194 Percussion Grenade

One For You And One For You
Kill 2 Helghast with one Double Shot from the M13 Semi-Automatic Shotgun

Disproportinate Force
Kill 1 unfortunate Helghast soldier with 3 rockets from the BLR-06 Hadra

Eco-Warrior
Hit 15 Helghast soldiers without reloading, using the secondary fire on the M66 SD Submachine gun

Call Of The Siren
Kill 25 Helghast soldiers with the VnD-10M Siren

Explosive Consequences
Kill 5 Helghast soldiers with one grenade using the attachment on the M82-G Assault rifle

Right In The Jewels
Use the M224-A3 Heavy Support Weapon to melee 20 Helghast soldiers

Designation: Demolition
Destroy 3 Towers using the BDL-23 Dohvat

The Reds Of Their Eyes
10 headshots with the STA-52 SLAR Sniper rifle

2 For The Price Of 1
Kill 2 Helghast with 1 shot from the BP-02 Pup launcher

Beep Beep Beeeep
Kill 10 Helghast with the secondary fire on the M327 Grenade Launcher

Get Out Of My Comfort Zone
Kill a Helghast within 1m with the M404-MAW M. Anti Tank Weapon . . . and don't die

Artillery Artist
Kill a Helghast from 200m+ away with the Pnv-3 Siska

Covering Fire
Kill 10 Helghast with the M224 Mounted Machine Gun

Something Borrowed
Kill 20 Helghast soldiers with the VnS-10 Scylla Mounted Machine Gun

Short Controlled Bursts
Finish a level above 50% hit ratio

Economical Soldier
Finish a level above 75% hit ratio

1 V 50
Kill 50 Helghast soldiers without dying

Brouhaha
Kill 30 Helghast soldiers in under a minute

Burn Baby Burn
Destroy your first enemy APC

Tanks For The Good Times
Destroy 2 Helghast Tanks attacking the Industrial level

Elite? HA!
Take down your first 2 Helghast Elite

That Got Their Attention
Destroy the Missile launching APCs in the Misty Waters Firebase

They're On Our Side Now
Switch allegiance of Helghast Sentry bots as Hakha

Anti-Air Specialist
Bring two Dropships crashing down in the Mist Waters Firebase

Bounty Hunted
Kill the IFO Bounty Hunter

Abridged Bridge
Collapse the Helghast bridge in the Jungle Valley

Supply And Demand
Blow up the ammo dumps in the Forward Logistics Base

Generally Better
Kill General Lente and his bodyguards

Orbital Strike
Take down General Adams with a melee attack

Helghast Assault
Complete Chapter 1

Vekta Evacuates
Complete Chapter 2

New Allies
Complete Chapter 3

Strange Company
Complete Chapter 4

Escape
Complete Chapter 5

Misty Waters
Complete Chapter 6

Hunting The Traitor
Complete Chapter 7

Forging A Path
Complete Chapter 8

Hidden Pasts
Complete Chapter 9

Onwards And Upwards
Complete Chapter 10

Hope
Complete Chapter 11

Rapid Reaction Force
Complete Chapter 1 to 11 playing as Templar

Shadow Marshal
Complete Chapter 3 to 11 playing as Luger

ISA Regular
Complete Chapter 4 to 11 playing as Rico

Field Operative
Complete Chapter 5 to 11 playing as Hakha

Helghast Champion
Win a battlefields game playing on the Helghast's side with the enemy AI set to hard

ISA Saviour
Win a battlefields game playing on the ISA's side with the enemy AI set to hard

Two's Company
Win a battlefields game with another player in split screen

SILVER

Colonel
Complete all levels on the medium difficulty

Nobody Hides From Me
Finish a level 90% hit ratio

4 X 4 X 4
Kill 4 Helghast in under 4 seconds with the EAW-25/4 Chimera

Scavenger
Pick up 10,000 rounds for the STA-52 LAR rifle

GOLD

General
Complete all levels on the hard difficulty

PLATINUM

Platinum
Collect all trophies in Killzone

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