How to play animation on ragdoll

[StPepe]

So I have a death ragdoll with the classic zombie model, and I want to play the "headcrabbed" animation on the ragdoll. Problem is the only place where you can find the animation is in the citizen. So I just create an animated prop, and try to transfer the bones from the zombie onto the prop. But there is 57 bones in the zombie and 56 bones in the citizen, so the animation looks jacked up in-game. How may I go around doing this?

[MPan1 banned]

lol i made that awful death animation addon
(The code is awful, I still need to fix it)

I know this is useless, but I'm not sure if it's possible to (properly) transfer an animation from one model to another.
The closest I got was by forcing the bone positions of a ragdoll to match the bones of an animated entity. I think this is what the code above is doing.
I think the code above is from the GitHub version. I never added this to the actual addon because it was too laggy.

I'm just wondering if anyone knows how to do this as well. I never properly figured it out.