Use bees to harass an enemy

Make Snake throw up

CQC Slam a guard and knock him out

Hold up an enemy

Eat a snake of any type

Capture any animal alive

Clear the game without entering Alert Mode (not including events where Alert Mode is mandatory)

Defeat Solidus Snake

Befriend Olga Gurlukovich

Tranquilize 100 enemies

Defeat Vamp

Destroy 5 cameras

Learn the location of the president