Classes of both misdemeanors and felonies all derive from the severity of the offense. In Wisconsin we go from a class A all the way down to a class H.
Typically expungement proceedings can only be held for Class C misdemeanors. Below is a link to an article on expungement. Another View: The expungment requirements of the various states differ...
In Texas, you will have a hard time obtaining a healthcare related license and You will be disqualified, up to ten years discharge from any supervision/probation, if you want to be a trooper/police...