Unlock the following trophies by performing the corresponding tasks:

TROPHY - HOW TO UNLOCK
Speedster - Clear all chapters under 5 hours
S.T.A.R.S Mission - Clear secret scenario
Bomber - Use 50 grenades
Vegetarian - Use 50 herbs
Put trust in others - Partner killed 30 enemies
Trigger Happy - Fire more than 10,000 rounds
Zombie shooter - Kill 100 zombies
Zombie Hunter - Kill 500 zombies
Zombie Killer - Kill 1000 zombies
Hunter Killer - Kill 100 hunters
Licker Killer - Kill 50 lickers
Head Shooter - Get 50 head shots
Head Hunter - Get 100 head shots
Executinor - Get 500 head shots
Memory of a Lost City 1 to 8 - Clear all the chapters on hard mode without continuing
Game of Oblivion 1 to 7 - Clear all the chapters on hard mode without continuing
Operation Javier 1 to 5 - Clear all chapters on hard mode without continuing.
Well off - Get over 50,000 money
Wealthy - Get over 100,000 money
Ultra - Rich Get over 150,000 money