Coast Guard and Navy Non-Commissioned Officer (NCO) Ranks E-4: Petty Officer Third Class: PO3: E-5: Petty Officer Second Class: PO2: E-6: ... Master Chief Petty Officer of the Coast Guard. MCPON.

Yet despite his legendary exploits, his rank has remained static: Master Chief Petty Officer. In the real-world U.S. military, such a scenario would be implausible, if not outright impossible.

Over half a century later, senior chief petty officer (E-8) and master chief petty officer (E-9) were added, completing what is now known as the Chief’s Mess. Those who hold the ranks of E-7 to ...

Halo's Master Chief has single-handedly turned the tide of interstellar wars. Yet despite his legendary exploits, his rank has remained static.

Yet despite his legendary exploits, his rank has remained static: Master Chief Petty Officer. In the real-world U.S. military, such a scenario would be implausible, if not outright impossible.

Yet despite his legendary exploits, his rank has remained static: Master Chief Petty Officer. In the real-world U.S. military, such a scenario would be implausible, if not outright impossible.