Tank used WZ 111 5A
This mission took longer than I had planned. The problem was ofc that you need to be top 3 dmg of both teams and 3 times in a row. The tank that you choose to use doesnt matter but I do recommend a mobile tank so you can hunt dmg. I played pretty aggressive at the start to get some dmg and when my hp got to low I retreated and tried to snipe some dmg. Another thing is that I think a T10 tank is the best way to go, if you get a top tier game in a 3-5-7 you almost have a free top dmg game.
Best of luck to you all