Kat, my husband, Brent, is also a retired chief. He was a Surface Warfare sailor, though. He refers to your dad's Submariner badge as "two dolphins puking in a sh.tcan". He pointed out that summer whites are shortsleeved, so you wouldn't use the hashmarks, which go above the cuff on a long sleeve. In case you do go with long sleeves, it's four years per stripe. He'll need his anchors on his collar, too. Any medals or awards should be listed on his DD-214 (separation papers). If you have any specific questions, feel free to PM me, or message me on FB. Brent will be glad to help you out.