| Online, PS+ required |
Upon starting the Multiplayer part of Uncharted 4, you will be prompted to conduct the introduction course. This is a brief tutorial over the mechanics of the Multiplayer matches, from the treasures and additional attack abilities to including the Mysticals. This will take you around five minutes to complete. Furthermore, completing this is a part of a larger trophy requirement for:
If you end up entering the Multiplayer and then departing before accepting to take the tutorial, SubarooDroo has suggested that you go to Trials > Introduction and take it up from there. It will appear with a checkmark, but you still have to complete it yourself in order to obtain the trophy.