He reported to his first operational command, USS George Washington (CVN 73) in December 2002, where he deployed throughout the Mediterranean, Middle East and Caribbean, and advanced to Second Class Petty Officer. He eventually pursued conversion to Navy Counselor and transferred as a First Class Petty Officer. While aboard the Washington he was named the 2005 Junior Sailor of the Year. In February 2008, he transferred to USS Carr (FFG 52) as the Command Career Counselor. Carr deployed multiple times to the Caribbean and South America as well, in support of counter drug operations. Aboard the Carr, he served as the Administration Department Leading Petty Officer and the Command Managed Equal Opportunity Advisor. In addition, Marlatt was selected as the 2009 USS Carr, Destroyer Squadron 2 and Strike Group 12 Sailor of the Year.
Marlatt transferred from Carr to assume the duties of Command Career Counselor of Naval Test Wing Atlantic at NAS Patuxent River, Maryland. He reported aboard in March 2010 and shortly after was selected for Chief Petty Officer. He served as Secretary and House Committee Chairman of the NAS Chief Petty Officers (CPO) Association and Chairman of the Navy and Marine Corps Relief Society After hours CPO program.
Following his tour at Naval Test Wing Atlantic, he was stationed at Officer Training Command Newport, where he served as the Command Senior Chief, Command Career Counselor and Class Chief for the Direct Commission Officer Indoctrination Course.
After selection to the Command Senior Chief (CMDCS) program, he reported to the U.S. Coast Guard Leadership Development Center (LDC) to be the Command Senior Chief of the Senior Enlisted Leadership Course in New London, Connecticut. There he served as a liaison between USN and USCG senior enlisted leadership. While on staff at the LDC, he was selected for Master Chief as well as joined the U.S. Coast Guard Auxiliary. He served in the Mystic Flotilla 25-03 as a Flotilla Staff Officer for Member Training. He was USCG Auxiliary instructor qualified and taught midgrade officer leadership courses.
In February 2019, he assumed the duties and responsibilities of Command Master Chief aboard USS Stout, where he has successfully led and completed a nine-month deployment in support of Freedom of Navigation Operations (FONOPS), with the USS