Back in 2007 the Braves drafted Mitch Harris in the 24th round, but he decided to go back to Navy another year and ended up getting drafted in the 13th round by the Arizona Cardinals. He did make it briefly to the majors and last pitched in 2017.
Then in 2015 the Braves drafted Stephen Moore in the 10th round No. 300 overall. The Braves had made Moore the highest drafted Navy player ever, though only 8 Navy players have ever been drafted. Moore was more control than stuff, throwing around 86-88, but averaged less than 2 walks per 9 in college.