Quote: "Yes, it is possible with the new limb detection. You would just need an animation where that limb fell off... I think."
Yeah but you would also need to make the player stay put afterwards.
Otherwise, the arm would follow them around as they walk/run since it is still part of the model.
As long as they stay close to it though you could pull it off, so it would require a bit of animating and scripting.
I was also considering having a separate model of the arm with an alt texture (transparent) following my characters.
That way you could hide the charatcers arm in the middle of the torso's mesh via an animation, then change the texture on the other arm model and drop it.
That way, the character could continue on without the arm following it around.
This is a bit more complicated though and I have not tried it, so it's just a thought until I get more time to experiment.
Good luck