A sense of self confidence and whatever they told you at the recruiting office.
Are you hard that is the question, you need to be mentally strong to push yourself to your physical limits each time you train
A security guard does not need very much training. It typically just takes one class during a semester to get what you need. Unless you carry a gun then you need gun training.
Before you start a security guard training business you need to register it.
Depends on the specifics of your crime. You need to speak to a National Guard recruiter for a definitive answer on this.
A security guard can need varied certification on a state by state basis pertaining to state law. Certification or training is not always required it can vary by job.
No experience needed.
I'd be prone to disagree. The Reserve components (including the National Guard) have been suffering substantially higher attrition rates than their regular counterparts, because the Reserve training schedule (one weekend a month, two weeks a year) does not allow them to be trained to the level of proficiency which a regular would be trained to. It's one of the reasons the National Guard now has their 'Active First' option, so that members of the National Guard can spend some time in the active Army, and receive substantial training of the sort they would not receive by spending their entire career in the National Guard.
An ASVAB score of 50.
96 months.
Most states have no formal requirements. Instead, OTJ training is the norm. California, however, has a certification requirement called California Guard Card.
Most Security Guard jobs are on the job training any special training you need is usually given by the company or they tell you where to go from my experience's.
First, you need to define "militia". The Militia is the body of adult citizens that are NOT part of the Armed Forces (National Guard is part of the Armed Forces). Please note that when the 2nd Amendment was written, there WAS no National Guard.