DOOM Eternal
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Final Sin - Mission 13 Story Campaign Walkthrough
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DOOM Eternal
Final Sin - Mission 13 Story Campaign Walkthrough

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Check out this guide about the Campaign Mission 13 of DOOM Eternal, Final Sin! Know how to clear this mission, secrets & unlockables, final boss battle tips and techniques, & more!

Table of Contents

Campaign Progression & Walkthrough

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Urdak-
Check Out The Story Campaign Walkthrough List

Mission 13 - Final Sin Walkthrough

Final Sin Walkthrough Flowchart

No.Procedure
1 Jump to the other building. Prepare to fight swarms of enemies
2 Move in from the now open orange seal and jump to the next building. Fight through the mobs in the hallway
3 When reaching the top, jump to the wall across you, then jump back towards another wall you just jumped from. Double dash into the building with the marker
4 Jump out the pathway where the Final Sin just broke towards the scaffolding. Fight through the tower to the top. A Marauder will be waiting.
5 Jump through the buildings to reach another arena-like building, fighting tough enemies like 4 Tyrants. Fight swarms all the way up the skyscraper
6 Jump to the other building to start the boss fight against Icon of Sin
7 Go through the final portal to initiate the final stage of boss fight
8Ending cutscene after beating Icon of Sin

1. First Tower Fight Tips

Fight In Circles While Jumping

Fight In Circles

Don't Linger in 1 place too long or you'll be swarmed. Jump around the 4 corners of the map to pick up supplies and manage the flow of enemies and their position towards you. Thin the herd while being mobile!

Rocket Launcher Effective VS Mobs

Rocket Launcher Effective VS Mobs

Weak mob swarms like Hell Soldiers can be problematic if they come in numbers. Jump to the air and blast the floor with Rocket Launcher to wipe them out fast.

Check Out The Rocket Launcher Guide Here!

Use Ice Bombs For Crowd Control

Use Freeze Grenades For Crowd Control

Throw Ice Bombs when things get hairy. Target mob swarms or tough enemies so you can focus on taking out the head of snake or wipe out annoying mobs.

Check Out The Ice Bomb Guide Here!

Deploy Grappling Hook VS Nimble Enemies

Deploy Grappling Hook VS Nimble Enemies

Flying enemies like Gargoyles or fast ones like Whiplash can be a pain to target. Bring the fight to them and end them fast with the Grappling Hook attachment on your super shotgun.

Check Out The Super Shotgun Guide Here!

4. Getting To The Next Skyscraper

Jump Towards The Scaffolding

Jump Towards The Scaffolding

To enter the next skyscraper, jump out the pathway that Final Sin just broke off. Target the scaffolding near the lower part of the skyscraper.

Destroy Buff Totem & Use BFG

Destroy Buff Totem & Use BFG

A Buff Totem is located near the opening you just jumped through. There's a BFG round nearby as well, so feel free to blast away with it to clear the enemy swarms.

Marauder At Roof

Marauder At Roof

Our old friend Marauder returns and will be waiting for you on the roof. he will appear somewhere near the final wave. Run around and kill other mobs before focusing on him.

Check Out The Marauder Guide Here!

5. Skyscraper Arena Fight Tips

Use BFG & Crucible On Tyrant

Use BFG & Crucible On Tyrant

There will be 1 BFG ammo for you to use in this stage as well as 4 tyrants. Use it for the initial Tyrant or save it for the later one. Crucible also does wonders.

Check Out The Tyrant Guide Here!

Destroy Buff Totem On 2F

 Destroy Buff Totem On 2F

A buff totem will spawn mid-battle buffing enemies in the already hectic fight. Swing from the totems to reach it and knock it down fast.

Another Marauder At Top

There's another Marauder waiting for you near the top of this arena. As always, deal with mobs before focusing on him as he does need your undivided attention to beat.

Check Out The Marauder Guide Here!

Icon of Sin - Boss Fight Tips

2 Stage Battle

Icon of Sin

You'll be fighting Icon of Sin 2 times in this final battle: once to rid his armor, and again to kill him. The battle mechanics are the same however: Break all 8 of the Icon of Sin body parts.

Check Out How to Beat Icon of Sin Here!

Break All 8 Body Parts To Beat Icon of Sin

Break All Body Parts To Beat Final Sin

The battle is based on destroying all body parts of the Icon of Sin, which will glow red when hit. Break all parts to beat it. Hitting destroyed parts will not cause further damage so always shoot at remaining unbroken parts!

All Icon Of Sin Body Parts

  • Head
  • Left & Right Shoulder
  • Left & Right Torso
  • Left & Right Hand
  • Abdomen

Pick Up All Items Before Entering Green Portal

Pick Up All Items Before Entering Green Portal

After the first stage, a green portal will open for you to fight the second stage. Before starting the second stage, loot all the items & Power ups on your current building before entering green portal!

Check Out Item & Power Up List!

Use Crucible On Tough Enemies

Use Crucible On Tough Enemies

There's plenty of Crucible fuel littered on this map. Save your time & ammo for Final Sin's body parts and slice away tough enemies.

Check Out The Crucible Guide Here!

Pay Attention To Icon of Sin's Attacks

Icon of Sin will use several attacks of his own to attack you. These include:

Headblast

Headblast

Fires volleys of fireballs from its head. Duck from wall to wall before it can get a bead on you. If you're fast, you can pull off a few shots against him while it tried to hone in on you.

Fist Slam

Fist Slam

Slams fist onto the building platform. Can be a problem when you're trying to break its fist parts. Duck away from the platform when you see it raise its arms.

Meteor Slam & Rune Strike

Meteor Slam & Rune Strike

Calls in blasts of meteor to cause burns, and fires rune attack at the player. Keep hopping around or retreat to the lower levels for cover.

Mission 13 Final Sin Challenge List

No Missions Challenges

Final Sin has no mission challenges and features a few intense battles, 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.

Final Sin - Upgrade & Collectible Location

Upgrade & Collectible Location & Map

Click on the collectible for instruction on how to get to their locations.

CollectibleQuantity
Codex Entry1
AutoMap1

Codex Entry

There is only 1 Codex in this mission.

No.Map and Instructions
1
Codex 1
Click to Enlarge
Use the elevator shaft to jump up and get this codex

AutoMap

There is only 1 AutoMap in this mission.

No.Map and Instructions
1
Located near the first battle
Click to Enlarge
Located near the first battle
Check Out All Collectibles & Upgrades List

Campaign Progression & Walkthrough

<< Previous MissionNext Mission >>
Urdak-
Check Out The Story Campaign Walkthrough List

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