the "covey" killer is a UNSC destroyer that was in naval blocade. the covey in the name is short for, covenant. covenant killer. the destroyers captain, antonio bonj', named the ship and had lord hood abord it for trasportation to a UNSC base or in battles to see what naval blocade is capeable of. later on in 2550, the destroyer was on its way to get an ODST squad from a [unknown] planet that they were stranded on. but half way there, the covenant corvette, silent heart, came out a slipspace drive and quickly destroyed the destroyer in its tracks.