Sentinel Mind

Sentinel Minds are specialized leadership-role Sentinel types. They were known to be present at the Arctic IV Installation, although it is unknown if they were present anywhere else.

Physical Description
Essentially, Sentinel Minds are simply advanced Forerunner AIs with computer terminals being their avatars.

Role
Their role is to control Sentinels in the absence of a Monitor or other controlling intelligence, and when one is present, they act as secondaries.

Other
Generally, Sentinel Minds are only able to speak in emotionless monotone.