The Crawler is an autonomous Forerunner defense construct, designed by the Promethean Warrior-Servants as a means of asymmetrically combating the Flood.
A variant which leads packs of lesser Crawlers and utilizes a Z-130 Suppressor in combat.
A further upgraded long-range Crawler variant with a built-in Z-750 Special Application Sniper Rifle.
Promethean Knights are a class of mechanized Forerunner Promethean warriors. Several legions of Knights represent the central occupying force in the shield world of Requiem, alongside a number of other Promethean machines.
Heavily armored variant, equipped with Scattershot.
Command and control unit for Knight forces.
A variant equipped with long-range weaponry, greater mobility and enhanced tracking capabilities.
The Promethean Watcher is a Forerunner Sentinel variant. Like other Promethean constructs, the Watcher was designed as a countermeasure against the Flood. Numerous Watchers were encountered on the shield world Requiem in summer 2557.