Your examiner doesn’t decide whether or not your condition is service connected – VBA claims processors do. C&P exams are tools used by claims processors to either collect missing evidence or clarify information in your claim. A complete C&P exam is just one part of the complete body of evidence from which claims processors must consider when making their decision.
VBA has published a SOURCES SOUGHT/REQUEST FOR INFORMATION (RFI) for a potential MDE. The MDE contract is VA’s mechanism in determining the extent of a Veteran's disability and the disability rating that is warranted. Veterans know these as "compensation & pension exams," or "C&P exams."