[BLENDER] 3 problems i'm having with modeling and porting.

So, I may need your help on these.

1: Ragdoll not working
[I made a Stickman model, and it’s fine in the model viewer, but the physics model is not working correctly.]
2: Faceposing not working.
[I made the VTAs, then made a line on the QC. Does not work.]
3: Physics model fail
[So, I decided to make a PLAYER.MDL ragdoll. (You know, the Player model from Half Life 2?) and I used the citizen phymodel, but that does not work.]

If you have a answer to any of those problems, tell me.

EDIT: Can anyone help me?