An enlisted man or woman discharged from the National Guard or the unorganized militia when called or ordered into active service of the state shall receive a discharge in writing in a form and with those qualifications as may be prescribed under the laws and regulations prescribed for the government of the National Guard by the United States and that are not inconsistent with this code. The certificates of discharge may be in the form of an honorable, a general, or undesirable discharge. Bad conduct and dishonorable discharges shall be awarded only by courts-martial as provided in this code.