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Enemy Lines is Act 3, Chapter 2 of Gears of War: E-Day, following Stranded. Follow the tunnels toward the storm sewers, take the collectible detours around the subway wreckage, and collect Erick Davis’s COG Tags beside the sewer supply cache before starting the Corpser fight. In the arena, use the pillars: bait the Corpser into attacking one so it falls onto the creature.
Route through Enemy Lines
The main route is largely linear, but several collectibles sit off the path. Use Tac-Com to highlight nearby items, and listen for the COG Omen audio cue, as TechWiser recommends in its Enemy Lines collectibles guide.
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1. Search the red-lit cavern
At the start, follow the objective marker into the cavern. The route bends right and descends. Before continuing, check the narrow passage on the right for the Damaged Gnasher Shotgun and the first Hard Case. Continue to the Locust supply cavern and search the pile or crates on the left for Parchment and Powder Pouch. The supply cache is also a useful place to resupply before the subway station.
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2. Clear the subway station
Clear the station, using elevation and ranged weapons where practical. On the right side of the wrecked train, near the Kalona poster, look for a crate containing Parchment with Indecipherable Writing. Before moving on, search the lobby and upper balcony for Hard Cases.
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- AN ORIGIN STORY BEGINS — Fight alongside Marcus Fenix and Dom Santiago in the gripping origin story of Emergence Day, as the Locust Horde erupts from below.
- A DARKER, GRITTIER THREAT — Face reimagined enemies and a terrifying underground invasion that restores the fear, dread, and intensity at the heart of the Gears of War series.
- MULTIPLAYER EVOLVED — Battle in Horde Siege for large‑scale PvE action or prove your skill in refined Versus PvP with greater precision and competitive depth.
- CLASSIC COMBAT, MODERNIZED — Experience signature cover‑based gameplay enhanced with updated movement, traversal, and controls that feel like Gears while playing like something new.
- CO‑OP YOUR WAY — Play online with up to four players across Campaign, Horde Siege, and Versus, or team up locally with 2‑player split‑screen co‑op on console.
3. Take both detours by the crashed trains
After the Wretches ambush, climb the broken train sections. Take the side tunnel and stairs down near the wreckage to find Beth Avila’s COG Tags. For the Maintenance Worker’s Bloodied Flashlight, search the dark tunnel leading away from the objective toward the red glow and wreckage.
4. Reach the storm sewers
Return to the main route, cross toward the sinkhole, and clear the hostiles. Control radios that rescue will not come until the squad reaches the surface, so continue toward the storm sewers. Find Private First Class Erick Davis’s COG Tags beside the COG supply cache. Get them before advancing into the boss encounter; the guide from AllThingsHow warns that the fight can begin before you can return for them.
Rank #2
- Disc only. Original case and manual not included. Will come packaged in a generic case.
- This renewed game has been cleaned, tested, and shows minimal wear.
All six Enemy Lines collectibles
Use this checklist to verify the chapter’s six reported collectibles. Locations below follow the third-party walkthroughs from AllThingsHow and TechWiser.
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1Repair Windows errors before they cause bigger problems2Scan for outdated or missing drivers - takes under a minute3Clear out junk files and repair common Windows errors| Collectible | Where to find it |
|---|---|
| Damaged Gnasher Shotgun | Small side area in the red-lit cavern. |
| Parchment and Powder Pouch | Left-side pile or crates in the Locust supply cavern. |
| Parchment with Indecipherable Writing | Crate by the wrecked train and Kalona poster in the subway station. |
| COG Tags of Private Beth Avila | Down the stairs in the detour near the crashed subway cars. |
| Maintenance Worker’s Bloodied Flashlight | Dark side tunnel near the train wreckage and red glow. |
| COG Tags of Private First Class Erick Davis | Beside the COG supply cache in the storm sewers, before the boss trigger. |
AllThingsHow also reports eight Hard Cases in the chapter. Search the subway station carefully, including its lobby and upper balcony; those cases are separate from the six collectibles.
Rank #3
- Listen up, soldier. The world is in ruin. The Locust Horde has risen. It’s Human vs Horde, and here’s your mission: Pick a side, build a powerful deck, and win the war. The fate of the world is in your hands!
- Experience the gritty gunplay of the video game in this official two-player card game. Take command of the COG forces or the Locust horde and seize control of the battlefield, one chapter at a time.
- Strategise your way through each chapter, bolstering your forces with classic characters like Marcus Fenix, General Raam, August “Cole Train” Cole, Dominic Santiago, and Damon Baird.
- Every battle counts. Whatever happens in each chapter will change what comes next, so you’d better be ready to dominate. The deck you build and decisions you make will change the way you play each campaign, making this a game you can reload time and time again.
- Whether you're a hardened vet or a grass-green rookie, get ready to take cover and lay down suppressive fire. Your enemies are trying to take the line, soldier. You’d better shove back hard.
How to beat the Corpser
The dependable tactic in both AllThingsHow’s walkthrough and Gamer Social Club’s guide is to make the arena pillars do the damage.
- Position yourself behind an arena pillar.
- Draw the Corpser into attacking your position so it hits the pillar and brings it down onto itself.
- Repeat with another pillar as the fight continues, then respond to the opening that follows rather than relying on gunfire to solve the encounter immediately.
The guides differ on the exact sequence after the first pillar hits. Gamer Social Club says the Corpser initially cannot be hurt by weapons, then retreats to another area where it can be shot; it also reports Tickers and Juvies joining the fight. AllThingsHow describes repeated pillar hits followed by a ceiling collapse. Treat those details as walkthrough-specific rather than a guaranteed sequence for every run.
Rank #4
- Disc only. Original case and manual not included. Will come packaged in a generic case.
- This renewed game has been cleaned, tested, and shows minimal wear.
Gamer Social Club says Tickers can be kicked back with B on an Xbox controller. That button instruction is specific to the Xbox control scheme described by that guide.
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AllThingsHow says Enemy Lines ends when the ceiling collapses onto the Corpser and the escape route opens. The story then proceeds to Act 3, Chapter 3, Last Foothold. Check the War Journal for a six-of-six Enemy Lines collectible count.
Quick Recap
Best Value
- 25 Years after Gears of War 3, spurred by a series of strange disappearances, JD Fenix must embrace his father’s legacy and battle a terrifying new enemy
- Never Fight Alone: Enjoy two-player co-op with friends locally via split-screen, over Xbox Live or LAN. Player 2 can select either Kait or Del
- Redefined Cover Gameplay: New close-cover combat moves and combat-knife executions turn each piece of cover into an offensive opportunity
- Brutal New Weapons: An incredible arsenal of new weapons includes the Buzzkill and Dropshot, which can shoot around and over cover, raining destruction from all angles
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