Only battles in which you are number one in your team by base XP count towards the mission’s progress.
Restrictions:
Only Random battles
Once per account
Tier VII or higher
“Experience Challenge – Elite” must have been completed first.
If you complete the mission “Experience Challenge – Best of the Best”, even though you already own the Heavy Tank No. VI, you’ll be compensated with 1,500,000 and a garage slot.
This event is available from 1 August at 07:00 to 1 September at 07:00 CEST (UTC+2).