Complete 20 story missions without switching to a new horse at a hitching post.

Complete a task for a Stranger.

Demonstrate killer economic sensibilities by taking down 3 enemies with a single bullet.

Crack the code.

Use the Grim Reaper to destroy the MG emplacement.

Escape the Past.

Retrieve the dossier and the defector from Hue City.

Kill 10 NVA with Dragon's Breath rounds.

Sabotage the Soviet space program.

Escape Vorkuta.

Take down Castro with a headshot.

Online: unlock 3 weapons in the Assault kit