Do you have to have some sort of license to shoot or certification, I am in the military but have never been to a civilian range or to a range as a civilian

No license needed to shoot. It's a public range. However, it's located on a wildlife refuge and you need to have a Louisiana hunting or fishing license to be on the refuge, even if to go to and from the range.

Nope but you need a state fishing or hunting license or a Louisiana wildlife stamp. All the info and liks you will need to get them are on thier website