If you contracted with the GC, then your claim will be against him. It sounds also like this is a Home Improvement Contract which has a strict set of requirements. From the many cases I have seen, almost 7 out of 10 GC's fail to comply with those requirements.
What is your question? It is unclear. the RMO or RMO has to be involved in running the operations of the contractor. Does that mean he has to supervise and be present on every project all the time. NO. You have to evaluate a case by case basis if you are trying to claim the RMO/RME is not adequately supervising the work.
Preliminary notice requirements are for California State Projects. Military projects are Federal Projects subject to the Miller Act which is different. Under Miller Act, those who do not have a direct relationship with the prime, i.e. generally second tier subs and material suppliers, have to file 90 day notices.
You will need to talk to a construction attorney. A written contract would be important here. If there is none, that may be a violation of licensing laws. If there is resulting damage you may go after his insurance. There are a lot of unknowns here so you will need an attorney to navigate all issues.