He was the captain that deployed the "cry baby" and delayed the turtle hawk and Riff-Raff. He later admitted to this and apologized, while thanking the players for helping him escape the pirates they encountered later.
His ship is named the …
Captain Rock met the crew at the Edge of UNSC space and took delivery of a package from Gavin Stroud. His ship, the Brahma Bull, was a purple Action 6 freighter that sported gold turbo lasers. He spoke in 3rd person and was thoroughly entertaining.