Scale down, rigged mesh (through .FBX exporter)

Sorry if i didnt post it in the right place.

My problem start with a bad unit setup. The Animation team rigged and animated in a scene 100 time larger then the actully game unit. (in Max the metric is Meters, but 1 unit is 1,0 Centimeters and it should be 1,0 Meter).

So when i export it or even fix the max scene, the rigged Mesh goes from 1,60 Meters to 1.600,0 meters. =/

Im trying to avoid a hand rescale or redo all the work. checking the FBX exporter (which is our final format). there is a “Scene Units converted to:” … this could save me. but, it only works if i scale it up. since i need to scale down the mesh get all messed. ill post screenshots.

My question is.

First: is this a safe convertion? (will it be a in game convertion and the engine will have to rescale it each frame again? or the file will be writen in another scale?)

Second: i can´t find a know issue about it, and a way to fix the exportation, someone have any sugestion?

have you tried tinkering this Property: “UnitScaleFactor”, “double”, “”,1 in FBX files we used this property to scaleup some character and the animation worked fine in the Game Engine:):