Progression is tied to completing daily, weekly, or seasonal Tasks, which can be viewed within the Battle Pass menu by tapping the Tasks button (the second tab). Tasks are also displayed at the end of every Multiplayer and Battle Royale match.
Tasks can range from earning a certain number of Medals to playing and completing matches. Every player gets two Daily Tasks and five free Weekly Tasks, which involve challenges that may take longer to complete than Daily Tasks.
Premium Pass members also have access to Elite Tasks as well as additional Weekly Tasks.
To collect XP through Tasks, return to the Tasks menu, tap Claim next to the completed Task.
It is also possible to use COD Points to purchase Tiers, which is optional and not required.