Well I had a CPR class in basic but it was....chaotic to day the least.
This was a formal class taught in an actual classroom not a hangar full of 200+ people watching videos. Nothing had really changed but it was definitely a nice refresher. We're required to take CPR when we're inprocessing to a base so I saw a few higher ranking people in there. No Chiefs or Officers but there was a Senior Master Sergeant (E-8)