I think what they need are more “Gun Free Zone” signs in and around the base.
Yeah, a sign, that should deter a raging lunatic.
That way... all the law abiding people will obey the sign, giving the raging lunatic easy targets. Just like shooting fish in a barrel.
Everyone knows that criminals who will think nothing of robbing or killing someone will be stopped in their tracks by a guns prohibited sign. It's part of the liberal theology along with its correlary that the more helpless and more defenseless you are the safer you are.