"So you're talking about assessing each aircraft against................?"
...The designed standards required by the Maintenance Manuals and the OEM to assure that the aircraft actually works as designed/expected.
There is nothing to stop the MAA (and the OEM) at any time recalculating the original and additional stresses and strains imposed by heavy modification programmes to produce revised Type Certificate Data Sheets (Possibly what you refer to as the Release To Service) Isn't that what happened to the Bucc?
However, to clarify things, Role/Mission Equipment includes items that may only affect "airworthiness" through changes to flying/handling properties, electrical load shifts or major structural changes affecting strength or airflow.
And yes, BBG, civil or military - the principles for airworthiness achievement are the same.
and again, it is nice to see some signs of "considered" responsibility at the top appearing in Manuals - Maybe the mist is clearing? - and they can now see the Tsunami coming their way.
G'Nite