Cold Waters 90%

A depth where water temperature changes sharply. It acts as a sound barrier. Staying just below the layer can hide you from surface ships, while staying above it can hide you from deep submarines.

Moves you at 5-10 knots. Use this when approaching targets to ensure you spawn in a "quiet" state. cold waters

Before diving into a campaign, complete all . They teach you vital basics: Navigation: How to move in 3D space and manage depth/speed. A depth where water temperature changes sharply