Gun control on military installations only apply to those who choose to obey these controls. If you are authorized to be on post, it is a simple matter to bring weapons in with you, Fort Hood is like a city. It would be impractical to search every person and vehicle that enters every day.

Once in, the only armed opposition you have are the security forces. Everyone else is unarmed in the main part of post. If you see typical soldiers with weapons in the barracks areas, you can bet they are unloaded.

This practice works extremely well, unless of course you happen to be caught in the vicinity of an incident like this.