Ok, I didn't know where else to post this so ill post it here.
I need to know how to get the tf2 models to have more flexibility. I heard that they are called HWM models.
I searched the internet for information about it, and came up with nothing but that its already default in the game.
But all it does is make it so i can put silly faces on the tf2 characters.
An example of what I mean is, this. (Sorry for page-stretch if there is one)

Both ragdolls are being held up by their feet.
The spy is the default ragdoll for tf2, and the medic is from Meet the Medic.
Notice the difference in flexibility. I need the spy to be like the medic. If anyone can help then, that would be cool.