Rear admiral (lower half)
From Halopedia, the Halo wiki
File:Brigadier General.jpg
Collar device of a UNSC Navy Rear Admiral (Lower Half).
Rear Admiral (Lower Half) is a senior commissioned officer rank of the UNSC Navy.
It is equal with the rank of Brigadier General in the UNSC Marine Corps.
In informal settings, Rear Admirals are typically referred to simply as "Admiral".
