I'm not sure what he means either, Mike. I'm guessing he meant he had a familiarization class and fam-fire with the M2.
Gabe, this board is a lot more civil than others, but as you've seen, the other members here who have military experience are having a hard time with some of your assertions. The mistakes about the weapons systems, which certainly is a honest mistake, bring some to then look closely at the rest of your experiences. As I said, this is a civil board, and had you made that mistake on another, the subsequent pile on that typically occurs on those other boards would have been vicious.
In the interest of keeping that from occuring, the Moderators do proactively step in and stop that kind of behavior here. But, it would be a good idea to not let questions like those to go unresolved simply because its unfortunate for someone who had given good and honorable service to our country have his credibility undermined by misunderstandings.
I certainly was led to believe you had more than a passing familiarization with the M2 by your characterization with it. There's nothing wrong with being an RTO. Plenty of folks serve in all sorts of capacities, and its not any less honorable to be a cook, or a clerk, or Motor T to us. Most folks don't ever serve our country in such ways, and some who'd like to simply cannot for various reasons; a military life is hard and demanding.
For the record, I was a Marine infantryman, and my job was 0331, a heavy machinegunner in 3/2 when I was in the Fleet. So, I spotted the faux pa right away. And, when I posted something that I erred on because I'm not familiar about it, I've been corrected as well. As John suggests, the membership here is big and wide enough to have experts in all sorts of endeavors. If someone posts an inaccuracy, its usually gets noticed.
Gabe, you wouldn't mind clearing some of this up for us, would you?