Out of interest, how long does it take you to convert a whole level using that method?
Here's how to do the method i use:
First you need the col and dff exporter that can export all the .dffs at once and all the .cols at once. Deniska script pack
has the batch dff + col exporter.
1) Import the scene1 and scene2 bsp into 3dsmax and select every
object then rotate it 90 degrees so it's correctly rotated.
2) In 3dsmax, move all the selected objects to wherever they need to be. (basically anywhere above 0.0 sea level)
3) Once the objects are moved to the needed coordinates, while all objects are still selected, click "affect pivot only" then "center to object" and then click "transform" which resets the rotation of the pivot then click "affect pivot only" again to finish using that tool.
4)Reset the xform then right click the grey background of the perspective viewport and click "convert to editable mesh".
5)Now you need to make all the objects have better names than "object01/02/etc," so first make sure every objects is still
selected and then click "tools">"rename objects..." and a window should appear.
6) Still writing the rest, tell me if you have any problems with completing steps 1-5.