Different instructors are different, my experience is that 6 months after graduating BMQ your file is wiped clean. If you get a verbal warning for not shaving after BMQ it stays on your file for a year, unless something else comes up then it stays for another year, or until your CO decides to wipe it. (I've never seen the latter happen)
I'm only 98% sure on the exact numbers though. But remember that little class you took in bmq, they'll put you on C&P then march you in front of people before they punt you. And, not to sound silly, but no one looking at your file will think "oh dear this guy got a warning in BMQ because the instructor wanted to stress him out, 5 years ago, I better not promote him" BMQ is a game, they're stressing you to see how you'll react/train you to react.
Are the warnings for the same thing or different things? Forgetting your weapon is huge. But you seem to still be on the course and if the worst you've done is a initial warning, unless I'm seriously misinformed, you're still in the clear.
Not to be picky, but you're an officer and you're on BMQ? (Not BOTC?) I thought that they'd explain the warning system in the first week and then test it on the general military knowledge test...
In any event, I wish you the best of luck ... Sir
