Template talk:BattleTier
Batttletier is a comprehensive list of tanks and their respective battle tiers, which is consulted by the Sidebar template during page generation. The purpose of Battletier is to take about 300 lines of script and move them out of what would otherwise be a very crowded page in order to output the one line that Sidebar actually needs at one given time.
Battletier should be updated with every MM chart revision.
To understand the formatting of Battletier, PM ForcestormX