Z-2500 autosentry

The Z-2500 Automated Protection Drone, or Autosentry, is an automated Forerunner defense construct used by Promethean Knights. It is also utilized by the UNSC's SPARTAN-IVs.

Overview
The Z-2500 is an automated drone that can distract and damage enemy combatants without direct control from the user. It currently outstrips similar devices used by the UNSC by virtue of its mobility and power.

List of appearances

 * Reclaimer Trilogy
 * Halo 4