Check out this guide about the Campaign Mission 8 of DOOM Eternal, Sentinel Prime! Know how to clear this mission, secrets & unlockables, boss fights, weapon locations, & more!
Table of Contents
Campaign Progression & Walkthrough
| << Previous Mission | Next Mission >> |
|---|---|
| Mars Core | Taras Nabad |
Mission 8: Sentinel Prime - Walkthrough
Sentinel Prime Walkthrough Flowchart
| No. | Procedure |
|---|---|
| 1 | After the cutscene, follow the path until you enter the first building |
| 2 | Take the elevator down to trigger another cutscene |
| 3 | Continue pushing forward until you reach an elevator that goes up |
| 4 | Move past the corridor with imprisoned demons and enter the room in front |
| 5 | Another cutscene will play |
| 6 | Defeat the Gladiator and other fodder enemies that appear |
| 7 | After killing the Gladiator, another cutscene will play |
| 8 | Mission ends after the cutscene |
1~5. Heading to Daeg Grav Tips
Straightforward Path
The path leading to the room where Daeg Grav is in is pretty linear, meaning that there will be no twists and turns that will confuse you on your way. There will also be transmissions of Khan Maykr popping up to let you know you're on the right path.
Imprisoned Demons Will Not Attack
Do not worry about the imprisoned demons when walking along the corridor right before Daeg Grav's room. They will not attack, so you do not need to use up ammo trying to kill them while they're imprisoned.
Gladiator - Boss Fight Tips
| Weak Point |
|---|
| When the shield's eyes flash green, the Gladiator is about to attack. Shoot him when its eyes are green to Stagger him, and create an opening. |
Fight Has Two Phases
The Gladiator boss will have two phases. During the first phase, it will have a shield, and will not move around as much. The second phase of the fight will give the Gladiator two flails and make it move around more often!
Check Out How to Beat Gladiator Here!First Phase Tips
Shoot at the Shield When it Blinks
Keep an eye on the Gladiator's shield during the fight. When it blinks, get ready to fire your gun at it. Once the shield blinks, its eyes will turn green. Attacking it at that moment will stagger the Gladiator, giving you an opening to close in and deal some damage!
Ballista Is Effective
A good method for a guaranteed opening is to aim at the Gladiator from distance with your Ballista. When The shield blinks, fire and dodge away. The shot should hit around the time Gladiator throws its flails.
Check Out The Ballista Here!Move Around the Gladiator
The Gladiator will mostly stay in the middle of the room. You will need to be constantly on the move to avoid its attacks. Thankfully, dashing will allow you to avoid most of the boss' attacks since they don't home in on you.
Resupply From Fodder Enemies
At times, the boss will spawn some fodder enemies after its attacks. This is a great time to resupply on ammo, armor, and health if you are in low supply. You will also be invincible while performing these kills so there is no need to worry about sustaining damage!
Check Out All Enemies Here!Second Phase Tips
Avoid Shooting When Gladiator Twirls its Flail
The boss will start to twirl its flails around, producing a circular yellow barrier. Do not shoot at the boss when this is active as it will reflect the projectiles back at you! Wait for the barrier to disappear before engaging.
Move Around to Avoid Getting Hit
The boss will start to move around the arena during the second stage. Use your dashes to avoid taking direct hits, and stay away from danger.
Stagger the Boss After Jump Rope Attack
One of the boss' notable attacks is that it will corner you in a section of the stage, and produce electric strands that you will need to jump over or duck to avoid. There is a small window after this attack where shooting it will cause it to stagger, allowing you to deal some damage!
Mission 8 Sentinel Prime Challenge List
No Missions Challenges
Sentinel Prime has no mission challenges and features only a boss fight and a few collectibles.
Complete To Get Weapon Points
Completing an objective in a mission's challenge list rewards you with a Weapon Point. Weapon Points can be used to increase the effectiveness of your weapon mods.
Complete All For A Sentinel Battery
Clearing all challenges in a mission rewards you with a Sentinel Battery that can be used to open the locked doors in the Fortress Of Doom.
| Related Guides | |
|---|---|
| Weapon Points | Sentinel Batteries |
Mission 8: Sentinel Prime - Upgrade & Collectible Location
Upgrade & Collectible Location & Map
Click on the collectible for instruction on how to get to their locations.
| Collectible | Quantity |
|---|---|
| ModBot | 0 |
| Rune | 0 |
| Praetor Tokens | 1 |
| Sentinel Crystal | 0 |
| Sentinel Battery | 0 |
| Secret Encounters | 0 |
| Cheat Code | 0 |
| Slayer Key & Gate | 0 |
| Toy | 0 |
| Albums | 0 |
| Codex Entry | 8 |
| AutoMap | 1 |
Modbots
There are no Modbots in this mission.
Check Out The Modbot Guide Here!Runes
There are no Runes in this mission.
Check Out The Rune Guide Here!Praetor Suit Tokens
There is 1 Praetor Suit Token in this mission.
| No. | Map and Instructions |
|---|---|
| 1 |  Click to Enlarge  Head up the stairs where Khan Maykr appears. Before leaving the building, take a right, and follow the corridor. Jump and dash to the other ledge to find the Praetor Suit Point |
Sentinel Crystal
There are no Sentinel Crystals in this mission.
Check Out The Sentinel Crystal Guide Here!Sentinel Battery
There are no Sentinel Batteies in this mission.
Check Out The Sentinel Battery Guide Here!Secret Encounters
There are no Secret Encounters in the mission.
Check Out The Demonic Corruption Guide Here!Cheat Codes
There are no Cheat Codes in the mission.
Check Out Cheat Codes Guide Here!Slayer Gate & Key
There are no Slayer Gates for this mission.
Check Out The Slayer Gate Guide Here!Toys
There are no Toys in this mission.
Albums
There are no Albums in this mission.
Codex Entry
There are 8 Codex Entries in this mission.
| No. | Map and Instructions |
|---|---|
| 1 |  Click to Enlarge  Found near the entrance to the first building at the start of the level |
| 2 |  Click to Enlarge  Found along the corridor after the flashback while going down the elevator |
| 3 |  Click to Enlarge  Move past the first illusion of Khan Maykr. The Codex will be along the path |
| 4 |  Click to Enlarge  Found behind a gate. Simply walk around the gate to collect the Codex |
| 5 |  Click to Enlarge  After finding the fourth codex, head up the platforms and onto the walkway. Look to your left to find the fifth Codex |
| 6 |  Click to Enlarge  In the room with the staircase Khan Maykr appears. There is a path on the right side of the stairs. Follow the path to get the Codex |
| 7 |  Click to Enlarge  Found right before taking the elevator going up |
| 8 |  Click to Enlarge  Found right after using the elevator going up. Face away from the Khan Maykr illusion to find the Codex |
AutoMap
There is 1 Automap in this mission.
| No. | Map and Instructions |
|---|---|
| 1 |  Click to Enlarge  Found in the room with the staircase where Khan Maykr appears. Look to the right of the entrance to find the Automap |
Campaign Progression & Walkthrough
| << Previous Mission | Next Mission >> |
|---|---|
| Mars Core | Taras Nabad |
DOOM Eternal Related Articles
Story Mission Walkthrough
Story Campaign List & WalkthroughMust-Read Guides
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