Marine Corps Base Quantico, Va. There are four programs of warrant officers for Marines: Regular Active Duty, Active Reserve, Marine Gunner and Career Recruiter. Each program has different requirements for grade and time in service. The Regular Active Duty and Active Reserve programs require Marines have at least eight years of service and a minimum rank of sergeant. The United States Marine Corps MOS 0306, Infantry Weapons Officers, commonly referred to as 'The Gunner' or 'Marine Gunner' are non-technical Chief Warrant Officers.