Information from the Chinese portal.
On February 15th, the “Spring Offensive” event comes. After the event starts each player will be able to compete with each other in the battles. After the end of the “offensive”, the 250 best elite commanders will be able to get the first premium tier X tank – 121B. At the end of the event, each commander will be able to receive a certain number of containers. Opening the container, you will be able to get a certain amount of talismans needed to get 121B. If the stars align, you can instantly get this machine from a container.