Riley-B311

Riley-G311 (born Riley Blake; also recognized as Codename ENDEAVOR) was a Spartan supersoldier who fought throughout multiple battles, including the Fall of Reach and the Loss of Hope. Riley began Gamma training at the age of 13. He began service at the age of 21, making him one of the youngest Spartans to be utilized by the UNSC. Known for his sense of humor, and his ability to take the harsh realities of war lightly, Riley was well recognized among Spartan-IIIs.

It is known that Riley had been separated from the rest of Gamma, along with at least six other members of before the Battle of Onyx.

Battles
It is known that he was separated from the rest of his team during the Fall of Reach, and was forced to fight entire Covenant assault teams alone for two days straight, until being rescued by a team of marines, accompanied by Justin DeLucus, in a Pelican Dropship, where he was taken back to the UNSC Eternal Peacekeeper.