Project Hex was a project to make generically modified humans who where modified to be stronger, faster, smarter, and to have no emotions. They were basically killing machines. They were trained by the best Spartans. When they hit puberty though, two of them died, so only 4 remained. That is also the stage when they started to have emotions. The Spartans finally realized that some of the things that they had done were terrible. All six Spartans escaped and eventually died due to UNSC and Banished forces. Numbers and nicknames were: Yukun, 907, green Mark 7, BOBX, 978, blue Mark 5, Crazy Eights, 8888, black Athlon, and Hally, 5026, blue Mark 7.