Protector Sentinel (Installation 00)

Protector Sentinels are a specialized variety of Forerunner Sentinel similar to the Super Sentinels.

Overview
The Protector is one of the oldest classes of Sentinel built by the Forerunners, originally used by the Forerunner fleet in vast fleets as escorts for fighter-bomber squadrons. Over time, their role evolved to suit localised defence, leading to their deployment on a range of installations including Installation 00. It is unclear whether this evolution involved a literal evolution from the larger Protectors found on the Ark to the smaller Protectors found on Trove.

During the Second Ark Conflict, Ellen Anders was able to use her expertise in Forerunner technology to take control of a number of Protector Sentinels.

Armament
Protectors are outfitted with a high-powered beam emitter capable of cutting through energy shielding and ablative armour plating. When destroyed, they self-destruct and emit an electromagnetic pulse to disable enemy technology and vehicles in the nearby area.

To supplement their own offensive power, Protectors may be sometimes deployed alongside an escort of Aggressor Sentinels.

Halo Wars 2
Protector Sentinels are exclusive to Ellen Anders, and can be made at the Firebase once the leader power has unlocked them. They are effective against vehicles, but are only okay against infantry, aircraft, and structures. Protector Sentinels are a good all-rounder air unit.
 * Info: Core Air, Sentinel Detonation, Sentinel Beam.
 * Tier: 0
 * Cost:, ,
 * Protector Sentinel upgrades
 * Drone Escort
 * Info: Increased damage, Increased health, Lockdown Bolt unlocked, have additional two Aggressor Sentinels as an escort
 * Tier: 2
 * Cost: ,
 * Defense Grid
 * Info: Increased speed, Detonate on destruction
 * Tier: 3
 * Cost: ,

Blitz card
The Protector's Blitz card has the following attributes;

Production notes
During the development of Halo Wars, a design for a cut Sentinel boss - intended to appear as an enemy in the campaign level Cleansing - was concepted by Phil Wohr and modelled through to final game asset by Robert Walden. This model (shown below) remains in the game files of Halo Wars: Definitive Edition albeit untextured. The early design was later reused almost unchanged as the Protector Sentinels introduced in Halo Wars 2.

List of appearances

 * Halo Wars 2