I know I already posted, but I've been an EMT pretty much non-stop since I came back to the game (James Archer -- Server 2). I wanted to sort of comment on everything from a newbish perspective, because while you're getting a lot of +1's, so much thought went into this it deserves a lot more.
Ranking Structure
For the ranking structure -- This is fantastic. The only thing I would suggest (and I admit to it being borderline pointless) is another rank. That sounds superfluous, but, speaking at least for myself, there is something about moving up. I imagine Medical Director will be few and far between. Something to fit between EMTs and Medical Directors (Maybe Paramedic?) could probably help in the achievement mindset that gives people a lot of satisfaction in moving up. Maybe a bit too cuddly an idea, and I wont be bothered either way.
Rules
These are great, and common sense. #7 is doubly important, as I've noticed while playing that there will be a ton of medics on, and using the talent I have to see EMTs, I can see they are trailing people and capturing stuff with gangs. I suspect it's one of the reasons I've been shot on site several times -- people assume I'm a gang EMT.
I would though suggest holding off on #3. I will shamelessly admit that after a day of flying all over Altis in a helicopter, it's something I will never do again unless something like the Organ harvesting comes about. I have zipped along Altis at 280km in my heli, crossing huge chunks of territory only for the person to respawn with three minutes left on their timer. Usually at the price of missing several calls in Kavala that I could have been a block or two from if I hadn't tried to be a real EMT and helped people around the map.
I beg you not to implement #3 without implementing some sort of relief for medics who try to traverse the map to help people outside of Kavala. Right now there's 0 benefit to leaving the city, which is a real shame. I love the organ idea.
As far as rules, I'd also love if the microphone thing was enforced. We've got radios and direct chat and as it is now, most medics (obviously, most are trolls right now) don't use them. I haven't used teamspeak, probably should, but there aren't many medics I've actually been successful in coordinating with, mostly on account of them being gang medics/not using or having a mic.
Talents
Awesome, love the list. The only thing I would worry about is Master Combat Medic. It makes complete sense, but unless the powers that be are 100% certain they can root out every "corrupt" EMT, this would be incredibly OP to have in the wrong hands. As long as you're confident that it will be dealt with though, this is awesome -- I'm always bummed when someone gets RDMed twice and I can't pick them up again.
Small things to fix/add
Sirens are sweet now. Thanks for whoever did that. The option to drag the unconscious would be incredible. I've showed up on a scene of someone dead in the road, went to heal them, and then the person who VDMed before I got there swings back around the block and mows me down too. Anything that helps make the helis worth it would be awesome.
and
God Yes. Or at a minimum organ harvesting.
Random Suggestions
Being able to sell medical supplies in the field would be awesome. Although since we are unarmed, if they are items we are paying for ourselves, it may make us even more of a robbing target.
I'd love to see non-EMT defibs be more of an issue as well. We definitely have the advantage as we have the items and what not, but we shouldn't be SO easily replaceable. I admit to not knowing off hand how much defibs cost rebels, but the prices for civvies should be significantly high enough to make the EMT a better option in all but the most dire of cases.
And the oath looks fantastic.