Jacob Cole

Jacob Cole was a human UNSC captain that played a large role in the Battle of Installation 09. He was the captain of the Motherbird Frigate. He would be captured my covenant forces within the Halo Ring's library and be infested with Flood DNA. Cole transformed into a Flood form and was forced to be killed by Bruce-B11.

Early Life
Jacob was a skilled tactician when he joined the UNSC, making him climb the ranks faster than any other. He became a captain and was soon issued his own frigate to command, the UNSC Motherbird.

Attacks on Draco III
Jacob Cole was stationed on Draco III after Insurrectionists began to target the planet. Jacob met and analyzed many spartan teams, specifically Team Onyx, the most elite of them all. He became good partners with Bruce-B11, the commander of the Onyx.

The Captain then fought on Draco when the Insurrectionists and the Covenant joined together to bring down the UNSC on the planet. Jacob provided great help to protect the ground and not allow any Covenant ships to break through the blockade. They eventually would though, due to larger numbers, and cause Jacob to order a retreat. Team Onyx were the only spartan team to escape the surface successfully and board the Motherbird just in time to jump to slip-space, going to coordinates taken from the forerunner structures on Draco.

Installation 09
The jump to slipspace brought them to the Halo Ring, Installation 09. The covenant followed them and began to attack the Motherbird. Jacob flew the ship onto the ring's surface to seek shelter. The covenant once again followed and a war broke loose between the UNSC and the covenant on the ring's surface. Jacob was then captured by the covenant forces, along with other Marines in his vicinity.

Death
Team Onyx and marines launched a rescue mission to save him at the library, which was the location of the ring's index. The Spartans were able to retrieve the Index and save the captain. Before they had left though, Jacob was infested with a flood virus from the library's depths and began to transform into a flood. At the Motherbird's crashsite, Bruce was forced to kill Jacob to take his implants and make sure he didn't cause harm to everyone else.

Legacy
Jacob was remembered fondly for his bravery and smart battle tactics on Draco, that bought everyone enough time to jump to slip-space and allow Team Onyx to escape Draco. If he hadn't made the jump to Installation 09, the covenant would have followed them to Earth and most likely would have won.