Z-510 Directed Energy Focus Weapon

The Promethean Defense Turret is an automated Forerunner directed energy weapon used by Prometheans on Requiem and the Mantle's Approach.

Function
This weapon is spawned by Promethean Watchers to defend a position. When it detects a hostile, it charges for approximately 4 seconds, and fires a beam similar to that of a Sentinel or Monitor.

Promethean Watchers project a blue beam onto a vantage point, spawning these weapons. The spawn point for the turrets does not need to be on a Forerunner surface. Watchers have been seen generating the turrets on Covenant crates and even on UNSC technology.

When destroyed, they disintegrate with a particle effect similar to that of a Promethean Knight.

Trivia

 * In the mission, Midnight, Cortana takes control of several turrets to help John-117. While under Cortana's control they have a blue coloration. The same happens when the Librarian activated several turrets to assist Fireteam Crimson.