To celebrate the release of Update 1.57 "Battle March" just play the game throughout the weekend and receive the unique “Victory” decal! The requirements are simple: Gain five victories (with 80% battle activity) whilst using vehicles of ranks III to V in Random Battles, in any mode you prefer. The decal is only obtainable during the special from March 19th 07:00 GMT to March 21th 07:00 GMT.