Here is the full list of all 50 Metal Gear Solid: Peace Walker HD Edition trophies - there are 39 bronze, 8 silver, 2 gold and 1 platinum.
Obtained every trophy.
Read all of Paz's diary.
Collected a soldier using a divine wind.
Customized ZEKE's head parts and foot parts with special AI weapon parts.
Obtained every costume.
Threw a chaff grenade at ZEKE (single player only).
Cleared "Capture the Enemy Base 06" in OUTER OPS using only soldiers.
Heard a ghost on the radio.
Performed a Leap of Faith.
Cleared all MAIN OPS and EXTRA OPS missions at Rank S.
Cleared all EXTRA OPS missions at Rank S.
Cleared all EXTRA OPS missions at Rank A or higher.
Cleared all EXTRA OPS missions.
Cleared all hunting quests.
Acquired stealth camouflage. Never worry about being detected ever again.
Acquired Infinity Bandana. Never worry about running out of bullets ever again.
Reached a total of 20,000 or more Camaraderie.
Reached 100 kills.
Obtained Rank S on a date with Kaz.
Obtained Rank S on a date with Paz.
Reached 50 or more game overs.
Nicely cooked a ration.
Defeated all AI weapons.
Read all of Strangelove's memoirs.
Rolled 100 times or more in a single mission.
Attacked enemy soldiers by blowing up an oil drum or truck (single player only).
Reached 100 hold-ups.
Cleared all MAIN OPS missions at Rank S.
Cleared all MAIN OPS missions at Rank A or higher.
Performed CQC six times in a row.
Reached 300 Fulton recoveries.
Cleared Chapter 5: Outer Heaven.
Complete Metal Gear ZEKE.
Assembled all special staff members.
Cleared Chapter 4: The Illusion of Peace.
Defeated Pupa, Chrysalis, Cocoon, Peace Walker.
Cleared Chapter 3: A Nation Reborn.
Reached at least 100 stun attacks or sleep-inducing attacks.
Cleared Chapter 2: The Phantom Hero.
Carried out a mission in OUTER OPS.
Read Huey's love letter.
Cleared Chapter 1: A Country Without An Army.
Recruited Hideo Kojima.
Shot enemy right in the middle of the rear end.
Played using all of the rules in VERSUS OPS.
Carried out a trade.
Sent an item using Delivery.
Captured a mech.
Wearing a cardboard box gives you that feeling of inner peace.
Cleared Prologue: An Army Without Borders.