From Halopedia, the Halo wiki
7 Charlie was a UNSC Army unit stationed on Reach during 2552. During the Fall of Reach on August 23, they fought in the Siege of New Alexandria where 7 Charlie 40 and his team were engaged by Covenant forces atop the Mainz Träger Headquarters building. SPARTAN-B312 was able to assist the team.
List of appearances
- Halo: Reach (First appearance)