The M997 is the larger of the two ambulance versions of the HMMWV. It can transport four stretchers or eight seated ambulatory patients.
This excellent 3D model is from 3d_molier International. It was fully UV mapped and textured, which saved me a few weeks work! There were some small errors in the textures which were easy to fix. I added a dust layer in MudBox and animated the doors and wheels in DAZ Studio.
The UH-60 is modified from the HH-60 model.