Here is the full list of all 25 Syphon Filter: Dark Mirror trophies - there are 6 bronze, 11 silver, 7 gold and 1 platinum.
Unlock all trophies in Syphon Filter: Dark Mirror
Complete all training missions
Complete 'Insertion Point Alpha'
Complete 'Red Jack'
Complete 'Finding Freeman'
Complete 'A Man Without Power'
Complete 'Freeman's Files'
Complete 'Under NORAD's Nose'
Complete 'Security Section D'
Complete 'Kreisler's Garden'
Complete 'Freeman's Answer'
Complete 'Old Friends'
Complete 'Memories'
Complete 'Forged Under Fire'
Complete 'Traitors in Our Midst'
Complete 'The Ultimate Sacrifice'
Complete 'The Trojan Horse'
Complete 'Fist Full of Rubles'
Complete 'Blood Money'
Complete 'Meeting with Fate'
Complete 'Into the Abyss'
Complete 'Red Section'
Complete 'Drowning'
Complete 'Event Horizon'
Complete 'Matter's End'