Iroquois
From Halopedia, the Halo wiki
4 dozen UNSC ships engage 20 Covenant craft. Seven human craft survive. The Iroquois destroyed a stealth ship receiving an encrypted transmission from the surface. Once this ship is destroyed, the surviving Covenant ships break off and flee. The Iroquois heads back to Reach for debriefing. A Covenant tracker attached itself, unseen, to the Iroquois' hull.
