From what it sounds like, you are asking for a script that will determine if a soldier is wounded, and if so it will order any nearby medic(s) to go to that soldier's aid and heal him. As of right now, when a soldier is injured he is told by his group leader to go to the medic soldier. Then either the AI or you have to run (or crawl) your wounded ass to where ever that medic might just be. WTF is that?? He's a Combat Medic! It's his job to come to YOUR aid, not the other way around! But, this is just how OFP is. Many times when I was wounded I tried using the command menu to say I'm injured, but the medic never comes to me, I have to go to him. Pretty stupid, and I see how a script like this would make the game more realistic and enjoyful at the same time.
It would also be nice if this kind of script were made so that the player could also take the role of a medic, and have the injured AI call for help. Instead of having 2-3 AI crawling towards you like a bunch of zombies, they stay put yelling and screaming, while you have to go to them. Would work both ways, as either the wounded or as the medic. And making it MP compatible shouldn't be a problem either I think.