These same sentiments ring true for small rural hospitals all over the country. They don't have the volume, nor the resources, to provide the high acuity services that are commonplace in larger cities.
I work for a group that covers three hospitals - at two of the three, a stat C-Section can literally, and easily, be decision to incision in less than five minutes. At the third, a small 50-ish bed facility, the OB doc may not even be in house.
For these small military hospitals, the solution seems obvious, and is already done at military installations that don't have their own hospital. Ship them to the nearest appropriate civilian hospital, have them treated there, and the government pays for it. It's gotta be a cheaper and far better way of treating our military than maintaining an empty hospital with a full staff.