There are sixteen secret trophies to collect in SOCOM 4: US Navy Seals for the PS3. Here is the full list of secret trophies and how to unlock them.
10-Piece Meal (Bronze) -Eliminate a total of 10 chickens during your career
Allegiance Exposed (Bronze) -‘Revelation’ – Expose Gorman’s treachery and determine his true allegiance
Beowulf (Bronze) -‘Leviathan’ – Destroy the enemy stealth frigate to ensure the safety of the remaining NATO fleet
Destroy Gorman’s Car (Bronze) -Destroy Gorman’s Car
Destroy Razad’s Car (Bronze) -Destroy Razad’s Car
Double Down (Bronze) -Eliminate 2 chickens with a single explosive
Executioner (Bronze) – ‘Animus’ – Complete the Story Campaign by choosing to take Gorman’s life
Eye in the Sky (Bronze) -‘Uninvited Guest’ – Secure the intel that reveals ClawHammer’s true objective in the region
Field Promotion (Bronze) -‘First Strike’ – Complete your first mission as Ops Commander
Passing the Torch (Bronze) -‘Countdown’ – Stop ClawHammer’s missile launch and promote Forty-Five to Ops Commander
Peace Keeper (Bronze) – ‘Animus’ – Complete the Story Campaign by choosing to bring Gorman to justice
Rendezvous (Bronze) -‘Rendezvous’ – Rescue the surviving allies at the NATO rally point
The Blood Orange (Bronze) -Find and collect a Tarocco
The Sweetest, Darkest Juice is at its Core (Silver) – Find and collect the Tarocco in each Story Campaign mission
Trial by Fire (Bronze) -‘Means to an End’ – Confront Razad and expose Naga’s partnership with ClawHammer
Whatever it Takes (Bronze) -‘Fluid Dynamics’ – Stop the Naga forces from reaching the capital by whatever means necessary