OP, What would your reaction be if someone got hold of you and asked how they could get into close protection work, because they like shooting guns and strongarming other people and reckon they might make that their career in life? You know, 'cause it's not that hard, in fact, in a couple of years they're going to employ other guys that will do the hard yards while they run the business? Not getting at you mate, but there's a hell of a lot more to the job than just being able to climb a tree and hack it down. Get some education on trees (there is LOTS to learn!), at the very least work for a reputable company so you know what you're really in for. I know nothing about being in combat, but if i can compare the situation for you, in both jobs, what you don't know can kill you. I don't usually have much to say on here, but at present i have plenty of time to spare while ruefully contemplating my climbing future following a silly accident up a tree. I'm now waiting for an appointment with an orthopedic surgeon to repair cartilage damage to my knee. I guess it boils down to this- don't run before you can walk. Good luck, whatever you decide.