Complete the following tasks to unlock PlayStation 3 trophy rewards.

Trophy	How to unlock
Battle Hardened ( Silver )	Complete any 25 challenge missions.
Battle Tested ( Bronze )	Complete any 10 challenge missions.
Big Game Hunter ( Bronze )	Kill all giant bears in "Number One Threat to America".
First Blood ( Bronze )	Complete the first challenge mission, "Dead Meat".
Future Leader ( Silver )	Complete all 50 challenge missions.
Going Commando ( Bronze )	Kill 20 Enemy Commandoes.
Killed A Ton ( Bronze )	Kill 20 Desolator Troopers.
King Of The World ( Gold )	Complete all 50 challenge missions under par time.
Recycler ( Bronze )	Kill 20 Steel Ronin.
Star Pupil ( Bronze )	Complete all lessons in the tutorial.
Superior Commander ( Silver )	Complete all 13 main path challenge missions under par time.
Victor ( Bronze )	Complete all 13 main path challenge missions.