if (version_flag >= ADT_VERSION_EXPANSION_WOTLK){
try{
if (header.getoffsMTFX() != 0) {
buff.position(base_offs + header.getoffsMTFX());
mtfx = new MTFX(buff);
}
}
catch(ChunkNotFoundException e){
// TODO: try to find it manually
throw new InvalidClassException(e.getMessage());