Any information on 68a mos? I am going active active duty in a month and want to set some expectations on what to expect. Duty stations etc?

If you get a MEDDAC as your first duty station, that is the best duty station you can get as a first assignment. MEDDACs are generally attached to a hospital, but not necessarily. You will be doing your job and learning lots of things every day. For you, it will basically be like having a 9-5 job with some pt thrown in. You don't have to worry about going out to the fields or motor pool Mondays. If you want to take college courses in the evening, this is the best situation to do it in.
If you go to a CSH or Med Log, you can expect to do your job some of the time. Or you might not at all depending on the how the unit is set up. There is more focus on going out to the field, motor pool, and Army tasking than doing your MOS.
If you get stuck with a regular field unit, you probably won't do your MOS very often. In fact, they'll probably try to stick you as the generator mechanic if they lack one. More focus on field, motor pool, and Army tasking.
You can be sent to any duty station in the world. Your unit can deploy or they can send you and a small team. You can be deployed for 9 months or more. You can be deployed for as little as one month. It really depends on the needs of the customer.
For example, I was deployed to Africa from 2015-2016 for five months. My unit sent two 68Js and myself to operate out of Camp Lemonnier, Djibouti.
A year later I was deployed again to Africa with one other BMET. He and I spent an entire month hopping from place to place across Africa. Just the two of us.
I have worked in a MEDDAC, a CSH, a Med Log, and even gotten the opportunity to help at a Christian missionary hospital. (The latter wasn't done as part of an official mission. It was actually at the request of a local who became friends with the military in the area I happened to be in at the time.)
In short, you can be sent to any spot a combat MOS can go. I like being a 68A. It has been a lot of fun. If you like being a BMET and make it through the school house, do everything you can to improve yourself as a BMET. Your name will get around quickly. That is how you get the interesting assignments.

Your expectation and experience varies depending on if you are at the hospital, field unit, combat support hospital or a medlog company. So could you be more specific?...