Complete the following tasks to unlock PlayStation 3 trophy rewards.

Trophy	How to unlock
Bathed in Glory (Gold)	Obtain all the Unlockables.
Co-ordinated Fire (Gold)	Complete any Level, in any difficulty, in a 4-player co-op game.
Grizzled Veteran (Gold)	Complete all 4 Levels in 'Nightmare' difficulty mode.
Jack of all Trades (Gold)	Obtain Rank 5 in all 4 categories.
Juggernaut (Gold)	Within a single session, obtain at least 6 Awards in one Multiplayer round or one Campaign level.
Level 1 Complete (Bronze)	Complete Level 1 in any difficulty mode.
Level 2 Complete (Gold)	Complete Level 2 in any difficulty mode.
Level 3 Complete (Gold)	Complete Level 3 in any difficulty mode.
Level 4 Complete (Gold)	Complete Level 4 in any difficulty mode.
Master of all Trades (Gold)	Obtain Rank 10 in all 4 categories.
Seasoned Pro (Gold)	Complete all 4 Levels in 'Normal' difficulty mode.
Small-Arms Specialist (Gold)	Complete any Level, in any difficulty, using only the Piranha.
The Scourge King (Platinum)	Unlock all available trophies.