Turn off the HUD, cross-hair, mini-maps and interaction & navigation prompts completely throughout the whole game-play experience. Enabling this should deactivate all other options shown below.
Navigation prompts?
Should you show on-screen prompts about where they need to go?
Interaction prompts?
An example of what this is would be: "Press 'E' to use" appearing on the screen when you go near it.
Waypoint markers?
Options for markers on mini-map on/off.
Options for markers in the world (like a giant arrow in the 3D world) on/off.
Could have distance fade in options for this when on.
Mini-map?
Add opacity options for a mini-map.
HUD Opacity
Could fade from one value to another when not in use.
Cross-hair Opacity
Options to fade out certain HUD options when they're not needed.
Allow them to select which parts.
Allow them to set timers for those parts (times after they're no longer useful).