As the US goes, medical treatment is controlled by the Brigade now. If you did not know, the US Army has changed so that a brigade can operate pretty much without too much support from higher.
I do not think procedures have changed too much. In a perfect world, there is one medic per a platoon. I have yet to see that. It is the job of the company to set up an aid station where at least one medic is present. If someone gets wounded, he or she is first seen by a combat life saver. That person has a bit of training in stopping bleeding and IV. I have been one a few times. As a CLS, you will assist the medic if needed. Then the wounded soldier is evaced by any means to the company collection point. The medic there evaluates the casuality. It is the job of the company to evac soldiers by any means to the Battalion aid station. The medical officers there will evaluate, treat and pass the causality on...you kind of get the point.
As for mount, you are not going to see an FLA with bullets flying around.
