"On or after 18 September 2001: medical personnel assigned or attached to or under operational control of any combat arms or combat aviation unit of brigade or smaller size, who has satisfactorily performed medical duties while the unit is engaged in active ground combat, provided they are personally present and under fire. Retroactive awards under these criteria are not authorized for service prior to 18 September 2001."
Look, plain and simple it depends on who's operational control you fall under.
I was medic in Iraq with the MP's who fell under the 89th Military Police Brigade. I treated in combat, but could not recieve the CMB because the brigade is considered Combat Maneuver/Support and cannot approve such an award, and hence I was awarded the CAB.
My Second Deployment, still with the MP's we were under the operational control of 2-12 4ID. I treated while in combat, and since we were under a brigade that was allowed to award the CMB, I was awarded the CMB. On the flip side my Soldier was in Combat with the MP's but did not treat, all of the MP's recieved CAB's, but my medic received nothing.
I am proud of both badges, I just think the CMB should precede the CAB when worn on the uniform.
Check out this link, it has all the Q&A you want directly from HRC.https://www.hrc.army.mil/TAGD/...edical%20Badge%20CMB