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The Official Wargaming video presents the new and upcoming tier 8 premium reward tank Bat.-Châtillon Bourrasque which is a tier 8 medium 2 shot auto loader tank. The event is running from February 21 through March 02 2020 and includes both the tank and a 3D-style plus many more smaller prices.
Read more information at https://worldoftanks.eu/en/news/general-news/bourrasque-challenge/