If I was convicted of a class A misdemeanor, how likely is it to get a waiver?

Depending on the severity of the issue, the number of a misdemeanor was committed and the age in which you received that conviction will pretty much determine if you need a waiver. Best chance to get the best answer is just go talk to a recruiter.

MSG (Join to see) Has the only answer. Which is to ask a recruiter and give him all the necessary information about the charge.