they aren't separate groups on the P4 nor the Mil people figures, the meshes are separate but grouped together, you'd have to explode them to delete, and you run the risk of messing up the uvmapping completely when you open it in the modelling room. So that's not going to work, more than likely. Grouper is the best way to go, and the easiest way... he can delete the unwanted groups in Carrara as he's used to in Bryce then. :)