Large numbered squares on the map for World of tanks 0.9.16 is intended to facilitate coordination between the allies during the platoon, clan or team battles. You don't need to look at the minimap to convey to the team information about how square you are. Will be quite a bit zoom out the camera up and read the name of the square. This small revision will be able to save in battle a couple of extra seconds, which may not be enough at the critical moment to win.
A nice bonus to mod go wide boundaries of gaming locations. Now to crash into an invisible wall due to the fact that the card is over will be much more difficult. The border will appear bright purple.