As the Spartan fought his way through the facility, the Monitor, who floated above it all, offered commentary. “These Sentinels will supplement your combat systems. But I suggest you upgrade to at least a Class Twelve Combat Skin. Your current model only scans as a Class Two—which is unsuited for this kind of work.”
	If there’s a battle suit six times as powerful as MJOLNIR armor, he thought, I’ll be first in line to try it on.

Halo: The Flood Ch 9