After some researching it seems CQC and CQB are both legitimate terms that vary in various definitions. As one user online put it: [i]"In the army, we used CQC to denote any TIC that involved hand to hand combat. CQB was any TIC that was a firefight at under 50 meters, such as most MOUT engagements."[/i] Not sure what that means to Ruby and Gunther, but the conversation inspired me to do some digging.