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The Tech Tree Trade-In event is making its debut in World of Tanks from October 24-28, offering players a unique opportunity to trade in fully researched vehicle branches from Tiers VI to X for an unresearched branch.
This means that you can “de-research” any fully researched vehicle branch of your choice, from Tiers VI to X, allowing you to instantly unlock the same tier vehicles in a different, unresearched branch. Every vehicle you own from Tiers VI to X in the traded branch will be replaced by its corresponding counterpart in the new target branch, giving you a fast way to explore different tech tree lines and tanks.