Can I change my MOS in national guard before ship out to basic training?

11B*

Rza, there are a couple things at play here. The current policy for reclassification prior to shipping typically requires 100 days between the date of request and ship date. However, you're in the National Guard. That means you assessed (entered into service) the day you enlisted. This may not be so much a matter of your command "not working with you" than "you're already in".

Bro, if you're having second thoughts after going through the entire process of enlisting, reviewing and signing legally binding contracts, etc... this may not be for you. However, if after reading this you're still on board to serve, you should ship out.

Either way, I wish you the best of luck. You made a hard decision that most people won't.