Phoenix Logs/The Ark/Forerunner Sentinels


 * Sentinels were created by Forerunners as automated worker and defense
 * drones to maintain and protect Forerunner installations from transgressors.
 * Although designed without the independent intelligence of Forerunner
 * Monitors, or the UNSC's smart Al, they remain highly adaptable and a
 * formidable foe to anything they recognize as a threat to the Ark.


 * The Foundry at the center of the Ark is populated by Retriever and Assembler
 * Sentinels, who extract resources and minerals from the small moon held there.
 * The mining capabilities of the ship-size Retriever Sentinels can be highly
 * destructive when used against trespassers, but it is the smaller Aggressor
 * Sentinels that are primarily used for enforcement.


 * When deployed in great numbers, these Sentinels will swoop in and attack as
 * one in a perfectly coordinated wave. Swiftly removing any threats while leaving
 * the Ark undamaged.