Depending on if you want to make this secure to SH5 GR2 files or not.
Do a check on the textures path as a lock.
You could also lock to 3DMax version as a step check.
Reason I point this out?
I test many different GR2 files from different Games.
The ones that do not load at this time?
You give me the information to correct them so that they do load.
Examples would be the CRC check which I can correct and the file size check which is also easily fixed.
For early testing?
It might help to disable both at this time.
In the over all design?
Many things will not need to be checked and placed into a strict structure.
Who gives a Rats ass if 3D Max was used, or Maya, or XSI?
Much of the Section 0 information is just junk that will not be modified or overlooked anyway.