Creature creation and bone weigths in 3ds max. Need help please

[3AMt]

Hi,

I'm working on a new dismemberment mod.

But everytime I edit some creatures shape in 3dsmax the bone weights get messed up.

 

I need to get them back. I have read I can use the skin modifieres to "rip" them back from other meshes within seconds, but noone really telling how to do so. The skin modifier is allways empty. So what should I do? I've searched the hole internet, but there isn't any usefull information about it. If anyone knows how to do it please tell me.

 

Here's what I would like to add into the game.

 

 

And it always ends up like this: