I had a quick look right away. For some reason it seems the current version does not have the US running files. See if adding the attached two bitmatps to East Front helps?
About the medic 2D icons. They appear OK in my own test scenario... But maybe I've made a glitch of packaging these too...
Which German medics they are, squads or platoons? And are they Allied or Axis Germans?
EDIT: Tomorrow being Mother's Day here in Finland, I thought I'd quickly run through your scenario. Looks good, soon we'll have a new scenario to play, right!
I hope I fixed the US bitmap problem with the zip file below. Those files were missing from the download. You are turning into an excellent debugger, I need to offer you a drink or three one of these days!
As for the German Medics, I see them in bot 2D views. I see the medics, I see the ambulances. What I don't see is the Field Hospital, because it is stacked under other units.
EDIT2: I think you've set the German medics as a a separate unit in the OOB. I think you need to manually move them to very top of your OOB tree, right there too the same level as top HQ and top cdr. That way they are able to assist all units in the game in their side. I packaged them as sub units to OOB so they would be more easily copied into scenario OOB. There is no way (at least I did not figure out any) that would make them appear in the top as one group.
Was I able to make sense here?