Unidentified master gunnery sergeant

The unnamed Master Gunnery Sergeant in charge of Cairo Station's armory was a non-commissioned officer. He helped the Master Chief get used to his new Mark VI armor by testing his shields. He was killed soon after by two Elites as Covenant forces invaded the station. He was wielding the only Shotgun in the level against them. He was voiced by R. Lee Ermy in Halo 2, and has made no further appearances since his death. In the game, he was another of the several NPCs in the game.

Confusion over rank
There has been a great deal of confusion regarding this character's name and rank. In The Armory (Level), he is referred to as "Master Guns" by Sergeant Major Johnson. Many interpreted this as him being a Master Sergeant with the last name "Guns". However, "Master Guns" is an informal address for a Master Gunnery Sergeant, and the character's name is not known. In articles he is often referred to as the unnamed Master Gunnery Sergeant; the Armory's Master Gunnery Sergeant; or "Master Guns" (only if a direct quote from the game).

Quotes

 * "So, Johnson, when you gonna tell me how you made it back home in one piece?"


 * "Pfft, my ass! Well you can forget about those adjustments to your A2 scope! And you're sure to-"


 * "Get the hell outta my armory split-lip, OH GOD! [aaaaaarghhh!!...] "


 * "His armor's working fine, Johnson, so shut your chili-hole."


 * "Come on now is that a weapon or a flashlight!"


 * "Well, I guess it was all obsolete, anyway."-referring to destroyed equipment


 * "Your new suit's a Mark VI, just came up from Songnam this morning. Try and take it easy till you get used to the upgrades."


 * "Okay, let's test your targeting, first thing. Please look at the top light." (Once the Chief does as he's told)"Good. Now look at the bottom light." (Once the Chief does as he's told)"Alright. Look at the top light again." (Once the Chief does as he's told)"That's it. Now the bottom one." (Once the Chief does as he's told)"Okay.


 * "Tracking looks sketchy, I'm gonna run you through the full diagnostic. The diagnostic software sets your targeting system to be normal. Go ahead and look at the four lights, Chief. You want me to leave it like that, or make it inverted?"
 * "Look, just because the brass kisses your ass doesn't mean I will!"


 * "Just what this place needed: a couple of real live targets!" (In Co-Op)


 * "For all ya' friends, I've got enough ammo for all of youse... aaaaaaaargh!!"


 * "Oh God!!"


 * If you jump after you get out of the inhibitors he yells "Hey, take it easy!"


 * If you continue jumping he says "Careful, you'll tear a tendon doing that!"


 * Jump some more and he says "Fine, but don't come cryin' to me when you rip your leg out of its socket..."

Trivia

 * If the player waits underneath the Armory away from the stairs before entering it the Gunnery Sergeant is invincible. He will hold off the two Covenant Elites but he cannot kill them and will die as soon as the player enters the Armory. On Legendary, one can wait as he takes down the Elite's shield before going up and engaging them.