Acquire the Boreas Icestorm

Kill Cronos

Successfully entertain Aphrodite

Kill Hercules

Completed "Escape!"

Complete story mission 1.

Complete the Single Player campaign on any difficulty.

Assault Makarov's safe house.

Execute the plan to help the Americans.

Kill 6 enemies in a row using a thermal weapon in Single Player or Special Ops.

Kill at least 10 enemies with one Predator missile in Single Player or Special Ops.

Infiltrate the snowy mountain side base.

Cover Kratos in 500 buckets of blood by killing the enemies