Finish the game in Easy Mode

Defeat 50 enemies with stealth attacks

Find all 100 treasures

Defeat ten enemies using hand-to-hand combat on the back of the convoy trucks

Defeat 30 enemies with the M9

20 times in a row, pick up ammo while rolling

Defeat 30 enemies with the T-Bolt Sniper

Defeat 100 enemies with headshots

Defeat four enemies with one explosion

Find 80 treasures

Defeat ten enemies in a row, alternating hand-to-hand combat and gunplay

Defeat 30 enemies with the RPG - 7