I work at a small power generator with an equally small staff (38).
We are trained annually on first aid/first responder, CPR, confined space retrieval, and several others.
Included in the CPR training is the new defib unit that is "smart" I don't know if you have seen any of these. All you have to do is apply the sticky pads (it tells/shows you where on each pad, plug in the cable and turn it on. It will check for a pulse and recommend action. It will not let you shock if it finds a pulse. It is pretty neat, but I hope that I never get to see it in use.
