From the 30th of November to the 10th of December you will be able to enter battle and complete stages to earn the SU130PM, a tier 8 premium Russian Tank destroyer. Of course you will be able to buy it outright, but don't forget you are not just buying the tank, but also the extra rewards of credits, boosters and equipment you get on the various stages so it could be quite costly. For each stage you complete however, you receive a 10% discount off the purchase price. As in the previous marathon, there are 2 ways to do each stage, COMMITMENT which is for tier 6 to 10 vehicles, and MASTERY which is tier 10 vehicles only.
Click the picture or link to see my full video and review of the tank.
These are the stages, what you have to do to complete them, and the rewards you receive in doing so.