Recently, I've been apart of some active shooter drills and MCI drills with SWAT medics. The tactic currently in use, at least in my experience, is team members initiate a sweep ignoring victims except a quick search for weapons, then a secondary team comes through to check the victims, stabilize with tourniquets etc and evacuate to the green zone. Rarely did the care they provided need the skills of a medic, but having the skills to rapidly triage in the thick of it is not something every medic has the skill to do.