Passive mode for new players and it only lasts an hour. Passive players can be seen on the map and maybe transparent if that is even possible or just an icon above the name.
One time use as soon as you join. Either Accept or Decline.
Teaches you the basics and takes you on missions (Paid for the missions obviously).
It shows you around the map; Where things are, keybinds, ect.
It allows you to leave the passive mode at anytime, but it deletes what you're doing and takes you back to respawn screen.