Here is the full list of all 30 Army Corps of Hell (EU) trophies - there are 12 bronze, 12 silver, 5 gold and 1 platinum.
Obtained all trophies.
Alchemized all possible weapons, armor, and items.
Alchemized all weapons and armor for magi.
Alchemized all weapons and armor for spearmen.
Alchemized all weapons and armor for soldiers.
Cleared a Purgatory stage (21-30) with spearmen only.
Cleared a Purgatory stage (21-30) with soldiers only.
Exceeded 66,666 jewels in your possession.
Achieved an overall platinum rating ten or more times.
Cleared a Tartarus stage (31-40) with an overall platinum rating.
Cleared a Purgatory stage (21-30) with an overall platinum rating.
Cleared a stage between 11 and 20 with an overall platinum rating.
Cleared all Tartarus stages (31-40).
Cleared all Purgatory stages (21-30).
Completely filled the Demonic Compendium.
Defeated all bosses.
Crushed 3,000 foes.
Cleared a Purgatory stage (21-30) with magi only.
Cleared up to stage 20.
Cleared a stage between 11 and 20 with magi only.
Crushed 1,000 foes.
Cleared a stage between 11 and 20 with spearmen only.
Cleared a stage between 11 and 20 with soldiers only.
Alchemized all consumable items.
Alchemized first equipment for magi.
Achieved the maximum rating (excellent) in one of the musical instrument mini-games.
Crushed 100 foes.
Alchemized first equipment for spearmen.
Alchemized first equipment for soldiers.
Cleared the first stage.