[asheshouse]

I think your wrong about the size CW.

I have used beauvais1943.tga as a test
The image size is 512x512

The size in the game comes out at exactly 1600x1600 metres

The multiplier does not increase the texture size in the display, it reduces it.
So ,2 inserts a 2x2 pattern into the 1600x1600m box
,4 a 4x4 pattern etc.

I will changed my post above to reflect these conclusions.