.zip file contains:
master.max - 3DSMAX 7 file
master_bump.tga - 512x512 diffuse texture
master_dif.tga - 512x512 self illumination texture
master_si.tga - 256x256 bump texture
master_spec.tga - 256x256 specular texture

A model consists of rigid parts and ready to attachment.
A robot has an armour with internal polygons, she can be taken off or torn off as a result of damage, under an armour there is a textured body and rotor of engine(heart!:). If you not going to take apart a robot simply optimize to model :)

All the best!