I'm not a lawyer, but I'd assume when a field unit conducts operations, in the field, and some equipment fails, it's the job of the supply chain to do everything possible to help mitigate the issue reasonably fast. Definition of "reasonably fast" would be an expectation, carried from previous history of similar cases, and definition of "similar" is carried from previous history of purchasing equipment for the army. In other words, one can't just say "oh, this is more complex, and suddenly you can't rely on your practices anymore" without first - when the equipment was talked about - making that clear.

And "everything possible" would include tools, electronic or software, and software codes - and yes, possibly engineers who created them on the line, something like what was done when Apollo project had landings on the Moon. Only in this case I'd assume different kind of responsibility than just contractual.

I don't fall in the military hierarchy at the moment, but that doesn't mean I can give aid and comfort to enemy. Again, I'm not a lawyer - that's why it's a tribunal - but for a court to give go-ahead to this (absent more prompt collaboration beforehand) would be something to expect. What would you expect if you'd be in the field in this case?