The fortress in the ice

Beneath the ice, something has awakened. Our radars have identified a building, a fortress, at the bottom of a frozen chasm. A dark, ancient place, which we believe to be the source of this creeping corruption.

We are fighting on all fronts. The moment is right for a surprise attack, out of sight. The enemy is busy elsewhere. Don't be fooled by these abandoned ruins; there are not. Experience has shown us that the enemy is deceitful.

Your objective is simple: infiltration, assessment, neutralization. No trace. No rumors. If you fail, there will be no reinforcements. There will be nothing left to save.

You are discreet. You are efficient. You are determined.
Don't return unless the threat is gone.