Solid Snake is not alone in his mission. He has a dedicated support team from FOXHOUND, accessible via his radio (Select button). Each member provides different types of assistance and information. Knowing when to call each contact is vital for mission success.

- Big Boss (Frequency 120.75): Your commanding officer. Provides primary mission objectives, general advice, and is the only contact who can save your game. Call him frequently for updates and to save.
- Miller (Frequency 120.33): An expert in weapons and equipment. Provides information on where to find specific weapons, ammunition, and gadgets. Call him if you're looking for a particular item or need to know its function.
- Diane (Frequency 120.91): A military strategist and intelligence expert. Provides tactical advice, enemy patrol patterns, and hints about navigating complex areas. Call her if you're stuck on a puzzle or need help with enemy movements.
- Jennifer (Frequency 120.13): A local resistance member who provides information about Outer Heaven's layout, hidden passages, and sometimes even offers direct assistance (e.g., providing items). She becomes available later in the game.
Regularly contacting your support team is not just for plot progression; it's a crucial gameplay mechanic for receiving hints, saving, and understanding your next steps. Don't hesitate to call them if you're unsure what to do next.