Metal Gear Solid V: The Phantom Pain offers a wide range of features that enhance gameplay and storytelling. Some prominent features include:

1. Open World Environment: The game is set in a vast, open-world environment, allowing players to explore Afghanistan and Africa freely.
2. Dynamic Weather System: The weather can change dynamically, impacting gameplay and mission strategies. Visibility and terrain can be affected by rain, dust storms, and time of day.
3. Day/Night Cycle: This cycle influences enemy behavior and visibility, enabling players to engage in stealth tactics or direct confrontations based on the time of day.
4. Stealth Gameplay: Players can approach missions with stealth, utilizing gadgets, distractions, and cover to avoid enemy detection.
5. Base Management: Players manage Mother Base, recruiting soldiers, developing new technologies, and gathering resources to upgrade their capabilities.
6. Character Customization: Players can customize both Snake and support characters, altering their equipment and abilities.
7. Mission Variety: The game offers a range of missions, from primary objectives to side quests, each requiring different strategies.
8. Animal Companions: Players can use various companions like D-Dog and Quiet to assist in missions, providing unique skills and advantages.
9. Online Multiplayer: The game includes a competitive multiplayer mode where players can engage in various game types and cooperate in missions.
10. Interactive NPCs: The world is populated with dynamic characters that react to player actions, offering a more immersive experience.
11. Cinematic Storytelling: The game presents a complex narrative with high-quality cinematics, building on the themes of war, loss, and camaraderie.

These features combined create a deeply engaging and multifaceted gameplay experience.