Have not been to FT. Polk since the late 50`s but when I was there on the post were all kinds of wildlife especially feral hogs! Areas outside of the FT. should be excellent for varmits ( all kinds)!
One of your other post was pertaining to catfishing opportunities in the same area. Well just to the west of Leesville are two pretty good size lakes and just a little west of those is the bonaza" Toledo Bend" used to be loaded with fish! I caught several igloo icebox`s full of bream and whiteperch ( crappie) and always tied into catfish to add to the catch!
Lot`s of luck! Hope you like " sand fleas"!!