If you're fired for cause, which it sounds like you will be, then they don't need to give you severance. Normally companies will give something to avoid getting sued for wrongful dismissal, because normally there are steps they need to take in order to avoid those kinds of lawsuits.
Do You Get Severance If You Get Fired? There are no legal requirements or federal law for employers to offer a dismissal or redundancy package at the time of termination of employment. The Fair Labor Standards Act (FLSA) does not have any such provisions either.