I believe General Hawkins is really...going to need lots of luck as the Enterprise he runs is not monolithically a cloud based web environment with low availability expectations. C4ISR activities in remote locations involving time critical activities are not well served by this architecture and networks are today not available and reliable out to the last mile. As for Open Systems, my experience has been that in general the software is undocumented, written in several coding styles with no architectural integrity and no legal entity owns or supports it on demand. Committees rarely produce quality designs and military needs don't mix well with the "get it to market first" based testing strategy of "let the customer test it".
Commercial companies have no reason to build in features that increase availability of their solution or that are Military Unique Features since DoD is a minor customer. Economy of scale will get you good prices at the expense of solutions that actually meet real end customer needs.
More information about text formats