Full list of all 71 Uncharted 2: Among Thieves trophies - 57 bronze, 10 silver, 3 gold and 1 platinum.
The base game contains 48 trophies, and there are 2 DLC packs containing 23 trophies.
Platinum
Finish the game in Crushing Mode
Find all 100 treasures
Find 90 treasures
Find 80 treasures
Defeat ten enemies with grenades by aiming while hanging
Defeat ten enemies in a row with a single punch, after softening them up with gunfire
Finish the game in Hard Mode
Defeat 20 enemies with a single punch, after softening them up with gunfire
Defeat 250 enemies with headshots
Find 70 treasures
Complete one Cooperative Multiplayer game
Defeat 200 enemies with the GAU - 19
Defeat 75 enemies in a row without dying
Defeat 70 enemies with the SAS - 12
Find 60 treasures
Complete one Competitive Multiplayer game
Defeat 30 enemies with the Moss - 12
Defeat 70 enemies with the FAL
Find 50 treasures
Defeat 50 enemies with stealth attacks
Defeat 50 enemies with the Micro - 9mm
Defeat 30 enemies with the Wes - 44
Defeat 50 enemies with the M32 - Hammer
Defeat 30 enemies with the RPG - 7
Defeat 20 enemies with gunfire by aiming while hanging
Defeat ten enemies in a row with hand-to-hand combat
Finish the game in Easy Mode
Finish the game in Normal Mode
Defeat 50 enemies with the Dragon Sniper
Find 40 treasures
Defeat 70 enemies with the M4
Defeat 30 enemies with the Desert - 5
Defeat 100 enemies with headshots
Defeat 20 enemies by shooting from the hip (without aiming with L1)
Defeat 20 enemies with the Pistole
Find 30 treasures
Defeat 50 enemies with the 92FS - 9mm
Defeat 30 enemies with Mk-NDI grenades
Find 20 treasures
Defeat 50 enemies with hand-to-hand combat
Defeat three enemies with one explosion
Find the Strange Relic
Defeat five enemies in a row with headshots
Defeat 20 enemies with headshots
Defeat 20 enemies with hand-to-hand combat
Find ten treasures
Find one treasure
Get 2500 Kills in Deathmatch or Elimination games
Win 50 Deathmatch Games
Get 20 BBQ Medals in Deathmatch or Elimination games
Win 50 Objective Games
Get 200 Captured Medals
Win 50 Elimination Games
Finish Wave 10 in 1 Gold Rush Game
Finish Wave 10 in 1 Survival Game
Complete All 3 Co-op Objective Maps on Hard Difficulty
Get 100 Melee Kills in Deathmatch or Elimination games
Get 7 Tripled Medals in Deathmatch or Elimination games
Get 50 Stealth Kills in Deathmatch of Elimination games
Get 15 Triple Threat Medals
Get 20 Shut 'Em Down Medals
Get 50 Afterlife Medals
Get 50 Retaliation Medals
Get 10 Protectorate Medals
Get 50 Defender Medals
Get 5 Put 'Em Down Medals
Get 10 First! Medals
Finish Wave 10 in one Siege Game
Get 100 Tricky Medals
Complete all three Co-op Objective maps on Crushing