There seems to be some sort of comms issue when being contacted by the AWACS (Focus). The first message is missing the audio or perhaps it is being cut off by the built in AWACS comms announcing they are on station. Only played the first few missions but the problem exists in all of them so far. I suspect this is a DCS bug brought about by the last patch but something to be aware of. The work around is to just read the text from the AWACS.
Excellent campaign by the way Reflected. Really enjoying it.