Sentinel (Earth-5875)

Sentinels are autonomous machines of forerunner origin designed for the maintain, safeguard, defend and construct their many facilities, structures, and installations.

Description
Sentinels exist in many variants, each one separated for a specific task. They are produced by Sentinel factories. Under the Covenant, Sentinels were known as the "holy warriors of the forerunners".

Sentinels are mostly subservient to the commands of a Monitor, which remain in charge of the facility they are assigned to. Installation 00 features a Sentinel defensive network, used to coordinate them despite the lack of presence of any Monitor. They follow their directives and protocol without question, and will engage even other forerunner constructs if necessary, such as was the case when the Aggressor Sentinels on Requiem fought against the Vex in 2563.

Variants

 * Aggressor Sentinel
 * Constructor Sentinel
 * Custodian Sentinel
 * Enforcer Sentinel
 * Gatherer Sentinel
 * Onyx Sentinel
 * Protector Sentinel
 * Retriever Sentinel
 * Super Sentinel
 * Turret Sentinel