Excellent post.
Yes it would seem a little conflicting
If Jacques was in the 4th FS, as it says, then the nose cone would be red not blue. Bet that would throw a monkey wrench to all the modelers, profilers and skinners.
The letters on the tail were the 1st letter in the last names of the squad members. When they were full or taken they used Greek. Omega being the last letter in the Greek alphabit it was as close as he could get to Y.
The authors info was a personal interview with Jacques.
But I imagine he may have been assigned to both squads during his time or that is a typo or mistake.