From one veteran to another, thank you for your service! I'm from LA(Lower Alabama/FloraBama
)There are tons of info on this board for you to soak in. Start in the Training and Health sections to help get you started. Is it at all possible for you to get your pup back with his siblings and mom for a couple more weeks? This time period is a crucial time that the pup needs to learn certain things from them. If you can't, please be prepared for the road ahead of you. You will have to work 10 times harder at socialization, training, mouthy-ness, etc than others with pups coming from a responsible/ethical breeder or rescue.