You can't Master these! 11May-21May Tank Mastery

KRZYBooP: Howdy Boom Jockies!    I am so amazing that I have already tried these events and failed miserably for a total of 127 times. I challenge you to beat my high score.    11May- 21May  Rheinmetall Panzerwagen T-34-2 Kravagn Stug III Ausf. G   Are all up to receive Mastery for these ten days with rewards like 100% Free XP personal reserves   More information on what this event can be found HERE.   Good luck out there!