Gears of War: E-Day All Collectibles Guide

Gears of War: E-Day has 140 campaign collectibles across five Acts. This guide follows their chapter order, separates them from upgrade cases and side objectives, and flags the detours that are easiest to leave behind. In open districts, follow the suggested sweep as access opens; there is no single compulsory order within an explorable area.

Spoiler warning: chapter titles, locations and automatic story rewards appear below. Descriptions avoid explaining the ending or naming the final enemy.

Checked on October 23, 2026, against the released game and the October 22 hotfix notes. The Coalition develops E-Day and Xbox Game Studios publishes it for Xbox Series X|S and Windows PC, including Steam. General release was October 6, 2026. The dated update is the version reference here; the official notes do not supply a universal platform build number.

What belongs in the 140

The main collection includes COG Tags, written records and physical keepsakes. Some entries arrive through story scenes; others need an interaction, including the pilot helmet. Do not exclude an item just because Marcus examines it instead of putting it in a conventional inventory.

Hard Cases unlock upgrades and have their own goal. Secondary Objectives and Supply Cache unlocks are separate again. Ordinary ammunition, scenery and readable-looking props are not automatically collectibles: confirm a named collection entry. The route below covers the 140 main entries, not every upgrade case.

A repeatable sweep for each accessible chapter area.

Tracking and chapter replay

From the lobby, open War Journal, then Campaign, and inspect the Act/chapter collection progress. During a chapter, the pause menu provides collection information and a Collectibles view. Use the missing named entries together with the chapter totals below; a map icon by itself does not prove that an item was collected.

Use Tac-Com to check nearby objects. Semi-open chapters also mark discoveries on their maps, while a short musical cue helps with proximity. The October 14 patch added a setting to disable collectible chimes, so check that setting if you expect a sound and hear none.

Chapter Select lets you revisit missed campaign items; it is confirmed as a cleanup route after finishing the campaign. Previously recorded collection entries remain part of the overall tally. This does not establish an exact first-unlock point for every selectable chapter, nor does it make a new campaign's equipment loadout identical to the old one.

A mandatory full chapter completion after every replay pickup is not established by the reviewed documentation. For cleanup, collect the item, reach the next checkpoint and verify the entry in War Journal before quitting. That is a precaution for saving, not a claim that a checkpoint is the documented trigger for every collectible.

Campaign checklist

Replay: use Chapter Select for cleanup. The warning column highlights the main search priority, not every possible transition.

All 140 main collectibles, separated by Act and chapter.

Act 1 - 13 collectibles

Item, chapter and location names are kept in English for matching against menus and signs. COG, Locust and Emergence Day also retain their original names in both editions. Each list restarts at 1 within its chapter; open-area order is a suggested sweep.

1-1 Emergence - 3

1. Monster Jaw - After the opening pipe fight and cutscene, check the ground in front of the newsstand on your right.

2. Bloody Transit Worker's Helmet - In the maintenance tunnel, take the left opening; the helmet lies beside a body illuminated by a flashlight.

3. Front Page of the Kalona Times - After freeing the trapped civilians, enter Cafe and Bakery. Pass the counter into the rear kitchen and inspect its worktop.

1-2 Survival of the Fittest - 4

1. KPD Police Bulletin - Inside the police station's first office, keep left and inspect the desk toward the back wall.

2. Bloodied Police Chief's Badge - Through the double doors in Tactical Operations, inspect the floor below the chief's body pinned to the wall.

3. Army Recruitment Pamphlet - At the recruitment center, walk behind the reception desk in front of the large COG emblems.

4. Try On Pilot Helmet - From the pamphlet, turn right to the helmet display. Interact with the third helmet from the left before leaving.

1-3 A Gear in Need - 2

1. Tomatoes, Canned - In Pay-n-Save Warehouse, enter the second room and check the floor tray on the left beside a body.

2. Broken Lancer Bayonet - After the warehouse cutscene, look down beside the nearby corpse before following the route outside.

1-4 Back in the Fold - 4

1. Front Page of the Tyran Chronicle - Along the opening street, inspect the right-hand doorstep alcove before the Bar & Lounge billboard.

2. Anti-UIR Propaganda Poster - Before entering the clinic, go down the steps and turn right. Inspect the poster on the graffiti-covered wall.

3. Landa Memorial Medical Supplies Memo - Inside the clinic, check the tables on the right before returning to the escort route.

4. COG Tags of Private Brick Russo - After the clinic fight, approach Echo Park. Check beside the body at the police car left of the entrance.

Act 2 - 38 collectibles

2-1 Bravo Squad - 5

1. COG Helmet With Bullet Hole - On the opening street, find the traffic light and two yellow bins. Search left beside the body.

2. Sniper Goggles - In the West Control Room, check the left side beside the water dispenser before using the exit.

3. Bridge Worker's Lunch Kit - Before entering the East Control Room, descend the ladder and turn left into the corner.

4. Thrashball Rush Magazine - Inside the East Control Room, inspect the far corner to the left of the doorway.

5. Medic's First Aid Kit - On the Lower Deck, descend the stairs, turn right and search the floor near the truck.

2-2 Hold the Line - 27

The chapter opens in three successive parts: 3 opening pickups, 18 in the main district, then 6 around the later muster-point area. Complete the middle sweep before linking up with Charlie Squad and passing the camp gate. The bank vault and some optional routes open only after objective progress. The last six entries below belong to the later area.

1. Cinema Filmatica Magazine - Before Octus Way Station, enter Iron Coast Motors on the left; search the counter in its rear-left room.

2. A Letter Home - Start Trapped Family, enter Last Dollar Shop through the garage and check the hallway on the right.

3. Thrashies Cereal Box - At the fuel station, enter the Timgad Prime shop and inspect the desk.

4. Kalona Postcard - After exiting the station, turn right into the ruined park; search beneath the stone bench.

5. Vandalized Salvaging Poster - Return toward the station exit, then go ahead into Major Burger. Search its side room.

6. Foreman's Datapad - At the construction site south of the station, stay on the ground floor and inspect both rear corners for the foreman's body.

7. COG Tags of Private Liz Waxman - In the apartment left of the station exit, climb to the breakable window; shoot it out and step onto the scaffolding to the left.

8. Emgazi Blitz Display Case - Continue upstairs in that apartment building to the third floor; inspect the room with the computer.

9. Timgad Refinery Recruitment Poster - In the hotel between Bank of Tyrus and Warehouse District, check beside the elevator.

10. Re: Vibration Complaints - With Amberstone Storage on your left, enter the apartment opposite on the right, marked by a live-music sign; inspect the door inside.

11. COG Tags of Specialist Arnold Imhatip - Under the expressway between the bank and Warehouse District, find the burned body near the red light.

12. Caricature of Colonel Elias Trench - Above the Imhatip tags, return to street level at the COG roadblock; inspect the lamp post near the fuel pumps.

13. COG Tags of Master Sergeant Mark Avamor - From the roadblock poster, turn around and follow the street into the wrecked loading bay on the right; inspect the body.

14. Kalona Metro Fare Notice - Southwest of the bank, descend into Hance Station and inspect the notice on the wall.

15. Birthday Card with Toy Lancer - Behind Bank of Tyrus, follow the riverside walkway to the body and inspect the ground in front of it.

16. COG Tags of Specialist Jada Clemmons - Southwest of the bank, enter Grind Coffee and walk behind the counter to the body.

17. Tales from the Tyran Night Story Book - During Apartment SOS, reach the fourth floor. Search the table beside the refrigerator.

18. Major Burger Box - North of the Financial District, enter Major Burger and search the kitchen behind the serving area.

19. COG Tags of Specialist Brendan O'Connell - Face the muster-point objective, take the alley uphill left and search among the dead squad beside the Vulcan cannon.

20. Photograph and Harmonica from Mags' Apartment - Awarded through the Get Mags' meds objective. Check that the entry registers after the scene.

21. War Savings Bond - When the bank objective opens its vault, walk inside and inspect the left side; the Hard Case is on the right.

22. Pendulum Wars Victory Flag - At the muster point, inspect the newsstand beside the wrecked ambulance.

23. Child's Monster Drawings - In the LD grocery shop north of the Residential District, walk to the back of the storeroom.

24. Holiday Photos - Near Kalona Hotel and the newsstand south of Monroe Library, search beneath the bench.

25. Muster Point Instructions - North of the Residential District, check the wall near the telephone booth between the butcher and shoe shops.

26. COG Tags of Sergeant Elijah Adams - After the courtyard objective, start Lone Wolf (also called Lone Sniper in guides). Take the library-side apartment elevator; inspect the body upstairs.

27. Portrait of Chairman Tomas Dalyell - Inside Kalona Hotel, climb upstairs and inspect the upper hall between the elevators.

2-3 No Gear Left Behind - 5

1. COG Tags of Private Sal Harkniss - After the Impaler cutscene, enter its road tunnel and inspect the body in the middle of the floor.

2. COG Tags of Private Siv Strickland - In the same tunnel, inspect below the soldier impaled against the side of the van.

3. Bloodied Spike - Leaving the tunnel toward the golden-statue plaza, keep right before the arch under the elevated tracks; inspect the body in the corner.

4. Ink-Covered Wrench - Northwest of Allfathers Plaza, follow the street to the stone benches; inspect the ground beside them.

5. COG Tags of Lieutenant Jane Hawkins - Following Captain Grey, stop before the gate and search the ground on its right.

2-4 Flyboys - 0

No main collectibles in this chapter. Continue to the next chapter in the checklist.

2-5 Overrun - 1

1. Point Fairlight Hangar Data Pad - After returning inside the hangar near the Rally Point, walk forward and look left; inspect the boxes between the trucks.

Act 3 - 36 collectibles

3-1 Stranded - 5

1. COG Army Knife - After descending the rope in the woods, take the left fork to the tree and mauled body.

2. Fairlight Rifle Range Sign - After climbing the container into Fairlight Outpost, go uphill right and inspect the wall beside the blocked gate.

3. Gut-Puncher Grenade Rounds - Past the red containers, check crates left of the Supply Cache outside the large warehouse.

4. Prepper's Scavenging Map - At the sub-station entrance, pass through the fence opening and look right between the generators.

5. UIR Soldier Shooting Target - Before entering the sub-station, turn left and follow the building to the broken target against the rear fence.

3-2 Enemy Lines - 6

1. Damaged Gnasher Shotgun - In the opening red-lit chamber, climb the short slope on the right and inspect the supply crate.

2. Parchment and Powder Pouch - In the next supply-filled chamber, climb the left slope and inspect the crates at the top.

3. Parchment with Indecipherable Writing - After the station fight, check crates right of the train tracks beneath a Kalona poster.

4. Maintenance Worker's Bloodied Flashlight - Before crossing the wrecked trains, follow the dark tracks away from the objective to the red-lit dead end; check left.

5. COG Tags of Private Beth Avila - Back at the wrecked trains, take the left doorway downstairs before crossing the cars; inspect the body on the right.

6. COG Tags of Private First Class Erick Davis - At the sewer Supply Cache, inspect the ground immediately left of the adjacent Hard Case.

3-3 Last Foothold - 14

Sweep the district, then return for Lost in the Park and Rooftop Mayday when story progress makes them available. Collect their physical pickups before taking the final route out; neither icon should be treated as automatic collection credit.

1. COG Tags of Sergeant First Class Robin Hamill - At the surface emergence hole, face Kalona Theatre and check behind the taxi on its right.

2. COG Tags of Corporal Tracy Moore - Under the Skytrain route, enter the ruined building on the right and search its burning back room.

3. Colonel Trench's VIP List - At the abandoned checkpoint, inspect the table under the right-hand tent before following Tai over the bus.

4. COG Tags of Private Luis Garcia - After the fight toward the library, climb the right-hand ledges and check inside the shipping container at the top.

5. Captain Grey's Field Journal - After the library briefing, take the back room on the right; inspect the computer table.

6. Landa Memorial Hospital Evacuation Order - Inside the hospital's ground floor, keep right and search the filing cabinet behind reception.

7. COG Tags of Specialist Rachel Carnahan - From the hospital entrance, climb the stairs on the left; turn left at the top to the dead Gear.

8. COG Tags of Private Terrance Sander - At the police building facing the Weak Signal loading bay, follow its right side and enter the left door; check just right inside.

9. COG Tags of Private Oded Bay - Walk behind the police department and climb into the bloodied fountain used for the earlier ambush.

10. COG Tags of Specialist Bernard Havelock - Outside the pharmacy, use the abandoned truck to reach the hanging Downtown Line carriage; search its rear-right corner.

11. Locust Pistol Ammunition - From the library/apartment frontage, head toward the river; check beside bodies in front of four park benches.

12. COG Tags of Private First Class John Carnahan - Follow the main road to its end; inspect the body right of the closed blue-fronted COG shelter.

13. Damaged Heavy Locust Helmet - During Lost in the Park, exit the park's left gate, turn right and inspect the Boomer beside the sinkhole police car.

14. Blade-like Projectiles - When Rooftop Mayday becomes available, cut its gate, climb the first stairs and double back along the scaffolding to its end.

3-4 The Convoy - 3

Before dropping through the bridge floor, finish the upper-road search, including Bartholomew's tags. The Locust Crest is later, on the lower bridge; do not search for all three on the upper deck.

1. COG Tags of Private Rudy Bartholomew - After the opening fight, cross to the left lane and check the burning car beyond the left barricade.

2. Locust Crest - After dropping to the lower bridge and clearing enemies, keep right as the convoy resumes; check the overturned police car.

3. COG Tags of Corporal Kevin Garbor - Climb through the control-room window; search beside the body near the central console before operating it.

3-5 Desperate Times - 5

1. A Bottle of Iron Coast Beer - In the opening apartment, inspect the floor beside the body on the sofa.

2. Portrait of Chairman Jacob Monroe - After crawling through the apartment wall opening, check the floor to the left.

3. Sanctum of the Fallen Memorial Ceremony Program - After the Reaver fight, keep right of the stone barricade; inspect the planter at the courtyard's far edge.

4. Locust Spiked Shoulder Pad - After the Torque Bow scene, cross the bridge and pass right of the red-leaved tree to the body by the balcony.

5. Explosive Bolt - After clearing the clock tower, climb to its top before descending to the street; inspect the enemy firing position.

3-6 Desperate Measures - 3

Collect the letter in the opening fort before the chase advances. Some lists incorrectly direct this Act 3 entry to Act 4; the fort route below follows the detailed chapter walkthroughs.

1. Commander's Letter Home - After the fort's opening fight, face back toward the entrance from the central statue; descend left to the red-lit truck corner.

2. Torn Flag of Tyrus - During the chase through the main entrance, check left toward the newly blocked route; the flag lies beside its wall.

3. Morith Harbor Snow Globe - In the gift shop on the chase route, climb upstairs and inspect the left-hand counter overlooking the hall.

Act 4 - 41 collectibles

4-1 Hope and Ruin - 13

1. COG Tags of Sergeant Major Hank Rustin - Automatic at the opening scene. Verify the journal entry rather than searching the district for a body.

2. Message from The Coalition - At the opening fort, descend to the memorial podium before leaving through the broken wall.

3. COG Tags of Sergeant Betsy Barnes - Cross the bridge out of the fort and turn left at the first junction; check beside the wrecked truck.

4. Regalia Hotel VIP Guest List - Enter Regalia Hotel and inspect the reception desk straight ahead.

5. Dispute Magazine - Behind the hotel, find the blocked underpass and wrecked van; inspect its open driver's doorway and the ground below.

6. Anniversary Card and Tickets to Khindago - Behind the restaurant near the sniper plaza, climb the right-hand ledges into the ruined apartment; check its pale-blue kitchen counter.

7. A Handwritten Letter, in Vasgari - At Cooper Commons, pass the market stalls and climb the rear steps; inspect the overturned canvas beside the paintings.

8. COG Tags of Specialist Harrison Alexieff - After Missing Convoy, head toward the university. Take the right-hand steps to the raised garden and check left at the top.

9. Statuette of Roman Kalona - At Kalona Square, enter the ruined red souvenir shop and inspect the stand against the rear-right wall.

10. COG Tags of Specialist Dale Maddoc - In the courtyard beside the university, inspect the dead soldier against the blood-streaked wall.

11. Blood Splattered Ulk Plushie - Past the square's gate toward the Opera House, enter the alley behind the right-hand police car; check behind the blue car.

12. COG Tags of Specialist Mei Aoi - Before entering the Opera House, follow its left-side street to the dead end; inspect the ambulance at the sinkhole.

13. Lighter Darker Opera Program - Inside the Opera House, climb two stair flights on the left and pass through the right wall opening; check the balcony's right side.

4-2 Technical Difficulties - 2

Read the first entry before the train stops. The red-lit intermediate platform is a short opportunity, distinct from the later station where you leave the subway. Return when the departure warning appears; no reliable number of seconds is established.

1. COG Tags of Sergeant Aman Landry - At the red-lit intermediate train stop, get onto the platform; collect beside the body beneath the Westbound/Eastbound sign and return immediately.

2. NO 80 Graffitied Poster - At Allfathers Avenue, stay on the platform instead of taking EXIT stairs; check the tiled wall above a bench beside a pale-blue bin.

4-3 Tough as Nails - 14

Finish Special Cargo and revisit late-opening side activities before the final communications-tower objective. Pick up Imulsion Blast Charge manually. This sweep follows the rail yard, loading bay and rooftop route; it is not the collection menu's display order.

1. A Letter Regarding Armadillos - After the bar and gates, drop through the wall opening; enter the civilians' Seradyne building on the right and check the back-room desk.

2. R.I.G. Component - In the Freight Yard, enter the empty rail car beside the fence and check beside its generator.

3. Young Artists Night Poster - Return toward the district entrance by the pub; take the left route and inspect the green wall poster.

4. COG Tags of Lance Corporal Calder Hunt - Climb the warehouse by the rail yard to its roof; go forward-right from the stairs to the body by the generator.

5. Refiner's Union Jacket - Near Special Cargo, climb into Railway Transfer and check the shelving/crates on the right.

6. Imulsion Blast Charge - Finish Special Cargo and manually collect the charge inside the opened cargo container.

7. COG Tags of Lieutenant Jacob Palma - After Fire in the Hole, pass through the central rail carriage; check the dead Gear in the rear-right corner.

8. Severed JACK Bot Head - After the loading-bay section, enter the nearby red-brick warehouse and inspect its back wall opposite the entrance.

9. Blurry Photo of Locust Attack - In the loading-bay courtyard, climb the blue van to the ledge and enter the small room on the left.

10. COG Tags of Lance Corporal Dalia Avdol - Follow the loading-bay slope up and right; jump the collapsed walkway to the isolated upper platform at the back left.

11. Seradyne Factory Closure Sign - At the rear factory entrance, enter the ground floor and inspect the wall on the right.

12. Maranday Apple Brandy Bottle - Opposite the power station, climb the rope; turn left, then right onto the open roof and inspect the left wall.

13. COG Tags of Corporal Goran Ducaine - From that roof, cross the bridge into the garage; follow the upper floor right to the body beside the large dead creature.

14. Port of Kalona Docking Registry - Save the final tower objective until the district is clear. Upstairs, double back left to the square blue console by the window.

4-4 Signals - 5

1. Infinity Mints - At the opening fuel station, enter the shop, round the counter left and inspect the floor corner.

2. Signed Kalona Eagles Cap - On the wooded tower approach, cross the bridge and drop left underneath it; inspect the space below.

3. Pair of Binoculars - Near the comms tower, follow the outer walkway to its end at the round tower and inspect the base.

4. Photo of Lucas and His Friends - Inside the comms station, turn left downstairs and inspect the noticeboard on the left.

5. Lucas' Handheld Radio - In the same room, turn from the photograph to the central console; inspect its end.

4-5 Paths Diverge - 2

1. COG Tags of Lance Corporal Aniyah Musa - Before following Auntie, cross the opening street past the car and barrier; inspect the base of the tall slatted metal gate.

2. COG Tags of Lance Corporal Ava Wilson - After the dock fight, climb the yellow ladder and stairs inside the dock building; inspect the Gear beside the metal wall and barrels.

4-6 Critical Failure - 5

Collect the research-room documents before using the lift to the boss arena. The descent closes the opportunity to search the upper rooms during this run.

1. Bust of Allfather Decha Timgad - In the refinery's first lobby, inspect the reception/back-desk area beneath the TIMGAD PRIME sign.

2. Damaged Gas Mask - After the long elevator, go left toward the low pipe/hatch route, then right to the bodies; inspect the gantry floor.

3. Tyran Business Monthly - After regrouping, descend to the lower floor; enter the dark side control room and inspect beneath the wall gauges.

4. Memorandum to Dr. Elliott - In Amber Labs reception along the Central Channel route, search behind the desk beside the water cooler.

5. Dalia Fabbri's Research Journal - Before taking the boss-area lift, inspect the desk opposite the missile schematic wall, beside the tape player.

Location note: written guides disagree on the precise direction for the NO 80 poster, Palma tags and brandy bottle. This route uses the platform bench, rail-car body and rooftop landmarks from detailed walkthroughs; check those landmarks rather than following an isolated left/right instruction from a different approach.

Act 5 - 12 collectibles

5-1 One Problem at a Time - 1

The chapter's collectible is after the train section. If you are also clearing Hard Cases, finish their earlier route before boarding the final train; those cases do not change the one-collectible target.

1. COG Tags of Private Lorin Galvin - After the train ride ends, turn left before the wall opening; inspect the body against the brick wall.

5-2 Ghost Town - 3

1. COG Tags of Specialist Wallace Teale - At the end of the tracks, inspect the train/container area right of the climbable slope; find the body leaning against a container.

2. Clinical Test Trial Medication - In the hospital, climb one floor and follow the upper walkway to its far end; inspect the medicine cabinet.

3. COG Tags of Master Sergeant Joseph Kopec - At the apartment's top floor, turn right along the corridor and through the burning wall opening to the body on a chair.

5-3 Storm Clouds - 0

No main collectibles in this chapter. Continue to the next chapter in the checklist.

5-4 Resolute - 5

1. COG Tags of Lieutenant Enola Tabaaha - At the start, go downstairs into the structure and follow the left passage to the body before the Michaelson meeting.

2. Captain's Log, CNV Resolute - In the control room where Michaelson meets you, check the shelf on the left of the entrance.

3. CNV Resolute Decommissioning Plans - During the dry-dock flooding objective, enter the boiler/workshop room and inspect the workbench at the far left.

4. COG Tags of Lieutenant Arthur Palarmo - After escorting Zee, climb the ladders and turn around at the top; inspect the soldier crushed under the shutter.

5. Sketch of the Kalona Skyline - At the crane's top on the main route, inspect the sketchbook resting on military crates before descending.

5-5 The Fall of Kalona - 3

The first item is a physical pickup; the last two are story awards. The names below can reveal connections to the ending.

1. COG Tags of Sergeant Alton Hau - At the opening bridge section, sweep the far-left corner and inspect the ground by the impaled bodies.

2. COG Tags of Sergeant Bryce Valen - Story award after the final boss. Check the journal once control or the menu becomes available.

3. Carlos Santiago's COG Tags and Photo - Story award at the campaign ending. Let the ending complete before checking your final total.

Three checks before leaving an area.

Before a one-way transition

Treat an elevator, squad gate, drop or vehicle departure as a reason to pause and compare the current area with this route. The specific traps above are route-dependent; not every door is a permanent lockout. A local missed opportunity can still be recovered in a chapter replay.

For Hold the Line, do the side routes as they open instead of assuming an early map marker means immediate access. For Technical Difficulties, prioritize the platform pickup and return to the train. For Critical Failure, finish the documents before the boss lift. These checks prevent long replays without needing to search every piece of scenery.

Achievements, difficulty and co-op

Memories From E-Day requires all campaign collectibles on any difficulty and awards 15 Gamerscore on Xbox. Steam lists the same achievement and condition. The 140 items in this route are the target; Hard Cases belong to Relax. I'm the Map., and Secondary Objectives to Side Piece. Supply Cache items belong to Quartermaster. Finding a station and unlocking every item are different goals.

The any-difficulty condition permits a collection run on the easiest campaign setting. No difficulty-exclusive subset is established for these 140 entries. This does not remove the Insane requirement from separate campaign-completion achievements.

Online campaign co-op supports up to four players; console split-screen supports two. The October 14 notes fixed co-op progress tracking and warn that missing collection entries cannot be automatically restored. They do not fully specify every host/client, late-join and pickup-credit case. Each player should check their own journal; if an entry is absent, replay together from before that pickup and verify it on each profile.

If a found object is absent from the journal after updating, identify the missing entry and re-collect it. Do not expect a patch installation, a completed chapter counter or another player's achievement to reconstruct your missing record.

Frequently asked questions

How many collectibles are in Gears of War: E-Day?

There are 140 main campaign collectibles: 13, 38, 36, 41 and 12 across Acts 1 to 5. Hard Cases, Secondary Objectives and Supply Cache unlocks are separate.

Can you return for missed collectibles?

Yes. Chapter Select provides cleanup after the campaign. Use the journal to identify the chapter and entry instead of replaying the entire game.

Does collection progress carry over when replaying a chapter?

Recorded entries remain in the overall collection. After a new pickup, reach a save and check War Journal before quitting; the reviewed documentation does not establish that finishing the entire chapter is always required.

Do you need every collectible for Memories From E-Day?

Yes, all 140, including automatic story awards, on any difficulty. You do not need every Hard Case solely for this achievement, although those cases have a separate achievement.