Indeed, for the first couple of months, I played solely as a medic. When I got my first upgrade, I got the new medic weapon with the cool sight and "amazing accuracy" (yeah right, the spec ops weapon was WAY more accurate IMO).
That aside, I hope FS keeps the revive functionality, it is an amazing experience playing as a medic. And there really isn't any reason they couldn't just use shock paddles because most of the soldiers are human, and humans have hearts, and hearts are revived by shocking them 