I used to use just the plain ole tarred haversack. Simple and easier to carry along and doesnt stand out as something unusual, nor modern intrusive. I had added internal pockets and dividers into the liner so that articles could stay better arranged. The gunners haversack while affording more space.. but also more weight of items that you will soon discover arent really needed. To me it would stand out as something unusual and ackward for a medical officer to be using. Most tend to want everything to properly and quietly blend in with the given impression. In majority of cases the most you will be doing is acting in a simple first responder role. Which the few simple articles that may be required can easily fit into a common tarred haversack, diverting the common habit of trying to haul far too much stuff that experience will show isnt really needed. We quickly learn to do much more with much less.
Just an opinion and observation
(former paramedic & military combat medic)
Lieut Frederick Sineath
14th Virginia Infantry Regt Co.I
- 106th Penna Vol Co.F