This video shows you how a serious rescue helicopter like the Sea King can be used as a full-service rescue platform, as well as some avalanch and snow rescue techniques. Of course, Lochaber Mountain Rescue, the team in the vid, make it look easy, as does the Royal Navy crew. It actually takes years of training and conditioning to make it look that easy!
BTW, the soundtrack is the actual soundtrack of British search and rescue. There is a long history of traditional music on rescue teams. In fact, there are even folks songs about mountain rescue (although some of them are unprintable).