After finding Makarov in the ambulance after it crashed the team had escorted him into the extraction helicopter. TF141 and you were all in the moving helicopter.

Makarov was sharing some condescending words to Soap, and Ghost. While you were on a call a bit away from everyone else, though Makarov does seem interested on what you're talking about on the call. But no one can understand you since you are speaking in a rather unknown and forgotten language that rarely anyone knows now days. But they are all interested about what you are talking about on the call.