after that, I also attach the tag into the bip and export it
however, I found the tag will no any animation in MD3Compile.exe
Thus, I try to rename the tag object into other name in 3ds and export it into md3.
and using MD3Compile.exe to rename it into tag objects.
now, it seem work, but the upper and lower body separate so far.
Anybody know what step I do wrong?

Thanks Thanks