Complete 'Just Like Old Times' and 'Endgame' on Veteran Difficulty.

Complete 'Of Their Own Accord', 'Second Sun', and 'Whiskey Hotel' on Veteran Difficulty.

Find the Strange Relic

Finish the game in Easy Mode

Defeat 30 enemies with the Desert - 5

Defeat 50 enemies with stealth attacks

Defeat 50 enemies with the 92FS - 9mm

Defeat 20 enemies with the Pistole

Defeat 50 enemies with the Micro - 9mm

Defeat 30 enemies with Mk-NDI grenades

Defeat 20 enemies with headshots

Defeat 20 enemies with hand-to-hand combat