original_query: What were Cyril Bernard's concerns about the scheme and why did he express them strongly to his superiors?
query: What were Cyril Bernard's concerns about the scheme to form a francophone unit in the Rhodesian Army, and why did he express them strongly to his superiors?
answer: The passage does not explicitly state Cyril Bernard's specific concerns, only that he "warned his superiors strongly against the scheme".  No reason for his opposition is given.