Activation of maps with equivalent metas. If you have a map that has no meta, you may be able to activate it if there is an equivalent meta.
So, in simple terms (Iberia 960.7057 example):
Download/decompress/copy the map that you want to activate (but for which you don't have the meta).
Delete the relavent .meta file
Copy into the map folder the .meta file from the other map (same country - compatible as number) for the same country
Activate the map with the usual system.
Copy map 960.7057
Delete map 960.7057 meta file (Iberia-100567.meta)
Copy the meta of 960.7075 (Iberia-100579.meta) that has meta code into map 960.7057 folder
Unlock the map.