Medals
Description: Below is an extensive list of all of the medals you can earn in the game. Next to the name of each medal is a brief description on how that medal can be earned.

10 Headshots	Kill 10 enemies with headshots
20 Kills Desert-5	Kill 20 enemies using the Desert-5
20 Kills Mk-NDI	Kill 20 enemies using Mk-NDI grenades
20 Kills Wes-44	Kill 20 enemies using the Wes-44
30 Headshots	Kill 30 enemies with headshots
30 Kills Dragon Sniper	Kill 30 enemies using the Dragon Sniper
30 Kills M79	Kill 30 enemies using the M79
30 Kills MP40	Kill 40 enemies using the MP40
50 Kills 92FS-9mm	Kill 50 enemies using the 92FS-9mm
50 Kills AK47	Kill 50 enemies using the AK47
50 Kills M4	Kill 50 enemies using the M4
50 Kills Micro-9mm	Kill 50 enemies using the Micro-9mm
50 Kills Moss-12	Kill 50 enemies using the Moss-12
50 Kills PM-9mm	Kill 50 enemies using the PM-9mm
50 Kills SAS-12	Kill 50 enemies using the SAS-12
100 Headshots	Kill 100 enemies with headshots
Advanced Fortune Hunter	Obtain 35 treasures
Beginner Fortune Hunter	Obtain five treasures
Brutal Brawler	Kill 5 enemies using Brutal Combo
Brutal Expert	Kill 5 enemies in a role using Brutal Combo
Brutal Slugger	Kill 20 enemies using Brutal Combo
Charted!-Crushing	Complete every chapter with Crushing difficulty
Charted!-Easy	Complete every chapter with Easy difficulty
Charted!-Hard	Complete every chapter with Hard difficulty
Charted!-Normal	Complete every chapter with Normal difficulty
Crack Fortune Hunter	Obtain 55 treasures
Dyno-Might!	Kill 3 enemies with a single explosion
Enthusiastic Fortune Hunter	Obtain 15 treasures
Expert Dyno-Might	Kill 3 enemies with a single explosion 5 times
Expert Fortune Hunter	Obtain 50 treasures
First Treasure	Obtain one treasure
Grenade Hangman	Kill 10 enemies using grenades while hanging from a ledge
Hangman	Kill 10 enemies using firearms while hanging from a ledge
Headshot Expert	Kill 5 enemies in a row with headshots
Intermediate Fortune Hunter	Obtain 20 treasures
Master Fortune Hunter	Obtain 60 treasures
Novice Fortune Hunter	Obtain ten treasures
Professional Fortune Hunter	Obtain 40 treasures
Proficient Fortune Hunter	Obtain 30 treasures
Relic Finder	Obtain the Strange Relic
Run-and-Gunner	Kill 20 enemies using firearms without aiming with L1
Senior Fortune Hunter	Obtain 45 treasures
Skilled Fortune Hunter	Obtain 25 treasures
Stealth Attacker	Kill 20 enemies using melee from behind
Steel Fist	Kill 5 enemies with a single punch after weakening them with gunfire
Steel Fist Expert	Kill 5 enemies in a row with a single punch after weakening them with gunfire
Survivor	Kill 50 enemies in a row without dying

"Unlimited" Ammo
[Submitted by: Cheat Masters ]
Description: You must have at least 300 Medal Points (since this is not actually a true "unlimited ammo" cheat). When you do, press Start and head to the Rewards menu. From there, head to "Weapon Select" and choose from the weapons available. This will allow you to choose any weapon with full ammunition once selected. Now, all you have to do is go back and forth to this menu, selecting and deselecting the same weapon to constantly refill your ammunition.

Crushing Difficulty
Description: Unlock a difficulty harder than Hard Mode (called "Crushing")
How to unlock: You have to complete the entire game, all chapters, on Hard Mode without once changing the difficulty level. If you do this successfully, you should be able to select Crushing difficulty during your next playthrough.

Drakes Jersey
How to unlock: head to the Costume section of the game and insert the following code:
Left, Right, Down, Up, Triangle, R1, L1, Square.

Making A Cutscene Secret Videos
Description: To unlock secret videos embedded in the Making a Cutscene section of the game, insert the following codes:

Video for Grave Robbing	Left, R2, Right, Up, L2, Triangle, Square, Down
Video for Times Up	L1, Right, Square, Down, Left, Triangle, R1, Up

Concept Art Secrets
Description: To unlock secrets embedded in the Concept Art, head to the Rewards section of the game and insert the following codes:

Video	L2, Right, Up, Square, Left, Triangle, R1, Down
More Art	Square, L1, Right, Left, Down, R2, Triangle, Up