Donnie entered the Army in 2004, graduating from Airborne School and the Ranger Indoctrination Process. He also served in the 1st Ranger Battalion as an Infantryman. While in the 1st Ranger Battalion, he served as Rifleman, Squad Automatic Rifleman, and earned his Australia Jump Wings. He also deployed to Afghanistan in Operation Enduring Freedom. After leaving the military, he began and is currently in a career in law enforcement. Being in law enforcement, he is a SWAT Team Leader, Master Firearms Instructor, Red Dot Handgun Instructor, Gracie Survival Tactics Instructor, and Defensive Tactics Coordinator.