The body.txt file defines droid body components in Warzone 3.1 and earlier.
http://developer.wz2100.net/wiki/TxtEditing#Body.txt
On Warzone 3.2 and above, you need to use body.ini instead.
Assimilate:
The "body.txt" that comes with Warzone can be found here:
base.wz or base
stats
body.txt
If you want a "body.txt" in your mod, it should be stored here:
<your mod>.wz or <your mod>
Warzone 3.1 and earlier.
For Warzone 3.2 and above, use body.ini instead.
Your mod can include both the body.txt and body.ini if you want it to work on all versions.