'Special tasks' are a type of battle tasks that will reward you with medals, which are necessary to unlock the access to some goods in the WB shop. After a specific number of changes in a day, the change will then charge for Golden Eagles only - so choose carefully. The more often the task is changed, the more Silver Lions it will cost. If the available daily Task is disliked by the player, it can be changed for a small fee of Silver Lions. The completed tasks will reward the player with 2 progress points for the easy task and 3 progress points for the medium task in the Battle Pass menu. These are slightly harder and require vehicles of rank III and above to be fulfilled (BR 2.7 and above for naval battles). Once these are finished, a new set of medium tasks appear in the same fashion, six total between the game modes and vehicle choices. These easy tasks can be fulfilled with vehicles of rank II and above (BR 2.0 and above for naval battles). Initially, three battle tasks are available for Aviation, Ground vehicles and Fleet, with different tasks between Arcade mode and Realistic mode (there are no tasks for Simulator mode) for a total of six different battle tasks.

Daily battle tasks come in two levels of difficulty (easy and medium) and in different game modes.

War of the immortals wiki