unoiscool's post in Lifepak was marked as the answer
Hi!This is how to use the lifepak.
In order to be able to use the lifepak, you need to have it placed down close to a person, then you need to have the medical tab open, hold left alt and click on a person's chest, then select the pouch on the right side of the lifepak and and attach 2 ECGs to the person's chest, then you can click on the buttons on the lifepak (Analyze, CPR, Shock). In order to use the buttons you need to have the medical tab open. Shock doesn't work, but I've only seen it work when a person died while being connected to the lifepak, it didn't shock them back to life though. To pickup the lifepak you click on the handle. Hope this helps!