Do 6 years....you won't regret it!!! My own opinion is that a job is a job, and the military has the most security now days. Some people hate the air force and say they wished they had never done it, but it is because rules and dicipline are being forced upon them....and there is a lot of political crap too, but you know you just deal with it. The grass is not any greener on the other side, coming from personal experience. So, do 6 years and have fun with it! Good luck and thanks for your service!! BTW, as a medical tech, you may expect to deploy in the field. But, don't worry, you will be fine. The worst part is leaving your family, and you don't have kids, so it is that much easier.