Indeed, he looked like the model of a master chief.

Master Chief had a way of doing that to him.

He was too old for that sort of thing, the master chief knew.

Sounds like a bad time to drop in on the master chief.

"Master Chief, see how many of my guys you can round up."

But allowance shouldn't have to be made, not for a master chief.

She wasn't afraid to yell at the master chief, even if he was older than her father.

Master Chief, this one gets held over for a court.

The two master chiefs were surprised at first, but fell into line quickly.

"We've got some crazy people in this world," the master chief said.