2/68th Armor: Silver Lions!
What do the 'specialised units' actually represent?
Engineers seem obvious enough, but the 'Medic' units are a bit odd in that elite Red Cross personnel storming the enemy front-line is somewhat ahistorical.
I have to disagree with you. Medic units refer to combat medic units, of which many combat veterans regard the medics the elite of the elite. Most combat medics risked life and limb to get to the wounded and get them out of harm way. I good bulk of the Medals of Honor awarded in the United States have been awarded to combat medics.