While I like revolvers, based on my experience, wheelguns—especially Snubbys—are actually about 20% harder to shoot well, excluding the more complex manual of arms of an auto-loader. That does not mean, however, that the Snubby is not still a viable weapon.
Tactical Combat Casualty Care (TCCC) is a concept developed for highly trained military medics in combat. These medics operate in a completely different arena than their civilian counterparts, working within an expanded scope of practice that is only allowed when operating in a specific environment, such as a combat zone.