Blueprint
Fragments collected from battles that reduce the experience needed to research a specific vehicle, or any vehicle of a nation.
Also known as blueprints, blueprint fragments.
Blueprints come in three kinds: fragments for one specific vehicle, fragments for any vehicle of a nation, and universal fragments that work anywhere. Assembling a full blueprint removes a large share of the research cost, and a complete one removes all of it.
They are earned from battles at Tier II and above and from events, so they accumulate quietly and take the edge off the longest grinds.
Related terms
ResearchSpending a vehicle's experience to unlock its modules and the vehicles that follow it in the tree.ExperienceThe currency earned per battle from damage, spotting, kills, capture and defence, spent on research and crew training.Tech treeA nation's chart of researchable vehicles, where each one unlocks the vehicles above it.