How to use a particular rig with many other models.

Ok ok hear me out. i got this guy Xbot from mixamo, I disected him on blender in order to make damageable pieces from him so he can safely lose an arm or leg.

each piece was parented to the rig because it needs a hitbox to be damaged , and the box needs to move according to the model. yes the boxes are way larger because the game needs them to be easier to actually hit. (left side)

on the other hand there’s this other guy that comes out of blender as is .


this other guy on the right has all of the pieces not moving according to the rig because they are not parented,

My questions are:

Is there a way to use the the rig on the left side for other characters ? with all the hitboxes moving as they should, even if they do not exactly match the viewable model.

if so, how?, please please point me to some references, the SEO has frustrated my plans already on google.