To answer your question in a little more detail. QL3 is broken down into three phases. The first is your clinical skills, patient histories, in patient care, learning basic medications, IV's, injectables, wound care and dressing changes and of course A&P. Your second phase is your PCP at JIBC, of course if you are already qualified PCP or higher and they do a PLA, then you won't have to do that phase. Your third phase is your field phase, which is kinda old doctrine compared to what we are doing in Afghanistan now.
QL5 course is more in depth clinical, more detailed exams, creating a treatment plan and making that treatment plan happen. You also do your OTC exam so you can prescribe certain medications. As well you learn how to do sick chits and can give a max of 2 days excused duties and up to 7 days I believe of modified duties, as well you learn simple suturing. Then you do your AEC phase, which is Advanced Emergent Component. Its basically an ALS paramedic program, minus the major airway managment because we have already learned blind intubation (combitubes) on your 3's, then you go back to Borden and do another field phase
Your major trauma protocols are what you learn on Tacmed, which you take if your deploying. It deals with major bleeds, airways (NPA's and cric's), respiration issues (needle decompression), IO, antibiotics and pain management and then you learn how to put all these new protocols into effect under fire and under stressful situations (low light, sensory depirved, not being able to move much, wearing all your kit and so on)
And yes QL3's deploy, because I came back from roto 8 and I was and still am a QL3, and as well QL3's can go on ships now, we have one here in Halifax that is actually posted to a ship, but most 3's just get attach posted. Also, QL3's that are PCP qualifed are now allowed to do the independant tasks (range coverage)
I hope that helps. If anyone on here is a 5 or knows a bit more, I will step back and let you take over, but I'm just going with what I have from my pre-course package