The Abomination is the first and final mission of Act 4's first and final chapter, The Abomination.
Mission overview[]
The Secret[]
The location of the Secret is on an elevation (highlighted in red).
The Secret is embedded in biomass.
In order to unlock the "Mind Your Step" achievement, players must tackle this mission, but they do not have to complete it successfully.
Once the Cleaners reach the third phase of the mission, players can wait for the Abomination to break down the first barrier. Alternatively, the team can use a tunnel on the left to get to the next section ahead of time. After following the narrow tunnel, the team returns to the main tunnel where they find in the middle of the section a "bridge" made of biomass on which two other bridges cross horizontally
The Secret is located at the very top on the right side of the first horizontal biomass bridge.
Accomplishments[]
The Abomination must be successfully completed in order to satisfy the unlock conditions for the following Accomplishments:
| Icon | Name | Description | Reward |
|---|---|---|---|
|
Mind Your Step | Find the secret in The Abomination. | None |
|
Act 4 Recruit | Complete Act 4 on Recruit difficulty or higher. | 200 
|
|
Act 4 Veteran | Complete Act 4 on Veteran difficulty or higher. | 300
|
|
Act 4 Cleaner | Complete Act 4 on Nightmare difficulty. | 400
|
|
Complete Act 4 on No Hope difficulty | Complete Act 4 on No Hope difficulty | 500
|
|
Complete all maps on No Hope difficulty | Complete all maps on No Hope difficulty | Banner: Grisly End |
|
Complete all Campaign maps on Nightmare as Evangelo | Complete all Campaign maps on Nightmare as Evangelo | Outfit: ZWAT (Evangelo) Title: ZWAT Team |
|
Complete all Campaign maps on Nightmare as Walker | Complete all Campaign maps on Nightmare as Walker | Outfit: ZWAT (Walker) Title: ZWAT Team |
|
Complete all Campaign maps on Nightmare as Holly | Complete all Campaign maps on Nightmare as Holly | Outfit: ZWAT (Holly) Title: ZWAT Team |
|
Complete all Campaign maps on Nightmare as Mom | Complete all Campaign maps on Nightmare as Christine Tuttle | Outfit: ZWAT (Christine Tuttle) Title: ZWAT Team |
|
Complete all Campaign maps on Nightmare as Doc | Complete all Campaign maps on Nightmare as Doc | Outfit: ZWAT (Seo-yeon) Title: ZWAT Team |
|
Complete all Campaign maps on Nightmare as Hoffman | Complete all Campaign maps on Nightmare as Hoffman | Outfit: ZWAT (Hoffman) Title: ZWAT Team |
|
Complete all Campaign maps on Nightmare as Jim | Complete all Campaign maps on Nightmare as Jim | Outfit: ZWAT (Jim) Title: ZWAT Team |
|
Complete all Campaign maps on Nightmare as Karlee | Complete all Campaign maps on Nightmare as Karlee | Outfit: ZWAT (Karlee) Title: ZWAT Team |
Notes[]
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