Halo Campaign Evolved: Best PC Settings Guide

Fix blurry visuals, eliminate film grain and chromatic aberration, and dial in stable FPS during combat with this community-verified settings guide.

Engine.ini tweak required UE5 Unreal Engine 5 60 FPS target

1. Fix the Blur and Input Feel (Do This First)

The default post-processing in Halo Campaign Evolved forces film grain and chromatic aberration that makes the image look smeary and fuzzy. This is the single most reported visual issue players are experiencing. Applying the Engine.ini fix below produces a dramatic night-and-day improvement before touching any in-game settings.

Exact Steps (Steam Version)

Navigate to: C:\Users\[YourUsername]\AppData\Local\Meteorite\Saved\Config\Windows
For Game Pass / Xbox app version: use the WinGDK folder instead of Windows
Create a new text file named exactly Engine.ini (enable "File name extensions" in File Explorer View options so Windows does not secretly make it Engine.ini.txt)
Paste the following content into the file:

Engine.ini

[SystemSettings]
; Film grain
r.FilmGrain=0
r.Tonemapper.GrainQuantization=0
; Chromatic aberration
r.SceneColorFringeQuality=0
; Extra cleanup
r.Tonemapper.Quality=0
; Mild Lumen denoising help
r.Lumen.ScreenProbeGather.Temporal.MaxFramesAccumulated=12
r.Lumen.DiffuseIndirect.Temporal.MaxFramesAccumulated=12

[/Script/Engine.InputSettings]
bEnableMouseSmoothing=False
bViewAccelerationEnabled=False
bDisableMouseAcceleration=True

Save the file, then right-click it, select Properties, and check Read-only (otherwise the game can delete or overwrite it on launch)
Launch the game and verify the image is clearer

Important

If the file does not apply, double-check the exact file extension and the Read-only flag. A common workaround is using Steam launch options: -ExecCmds="r.FilmGrain=0; r.Tonemapper.GrainQuantization=0; r.SceneColorFringeQuality=0; r.Tonemapper.Quality=0"

Decision: Extra Lumen Lines

The Lumen temporal accumulation lines help reduce noise for some setups. If you force newer DLSS presets and see more noise after applying them, remove those two lines.

Decision: Community INI Packs

Nexus community INI packs exist and some players prefer them, but stick to the minimal version above first. Broader packs can introduce artifacts for some hardware configurations.

2. In-Game Graphics Settings for Stable FPS

Community reports highlight heavy FPS drops during particle effects, combat, and open areas. Global Illumination and Lighting are the heaviest hitters. The settings below are tuned for stability across mid-range and stronger hardware.

Recommended Settings (Custom Preset)

Setting	Value
Quality Preset	Custom
Effects Quality	Low
Geometric Quality	Low
Global Illumination Quality	Very Low
Lighting Quality	Low
Texture Quality	Medium
Reflections	Very Low
Atmospheric Quality	Low
Post-Processing Quality	Medium
Screen Shake	Off
Motion Blur	Off
Frame Rate Limit	60
Resolution	Native
Resolution Scale	100%
Upscaling Technique	DLSS / FSR / XeSS / TSR
Upscaling Quality	High
Async Compute	On
Frame Generation	Off (initially)

Why These Choices

GI and Lighting give the biggest FPS recovery without destroying readability. Lower Effects and Geometric quality help particle-heavy fights. Texture Medium keeps the game from looking too soft. 60 FPS cap with motion blur off improves consistency and clarity when the game dips.

Strong Hardware (High-End RTX/RX + Good CPU)

Try raising Geometric, Textures, Post-Processing, or GI to Medium and test open areas plus big fights. Many players still lower GI first even on high-end setups.

Mid/Low Hardware or Stutter in Combat

Stick to the list above with aggressive upscaling (Medium or lower quality). Prioritize GI, then Lighting, then Effects when tuning downward.

Prefer Sharpness Over Frames

Use TSR at Native or higher Resolution Scale, but expect lower FPS. If you have VRR/G-Sync/FreeSync, keep VSync off.

Test in a combat-heavy section (Library, Keyes, or open outdoor fights) after making changes to verify stability.

3. Common Mistakes to Avoid

Leaving film grain and chromatic aberration on while only lowering graphics settings. The image stays smeary regardless of FPS.
Forgetting to set Read-only on Engine.ini. The file vanishes on next launch without it.
Setting Frame Rate to None or uncapped too early. More hitching is reported with uncapped frames.
Enabling Frame Generation first instead of fixing base settings and upscaling. It can hurt cutscenes or introduce issues.
Ignoring first-session shader compilation stutters. This is normal for UE5 and improves after playing for a bit.
Using very low upscaling quality with low graphics but without the INI fix. Grain and haze look worse combined.
Not checking the folder path for Game Pass vs Steam. The WinGDK folder is required for the Xbox app version.

4. Extra Community Tips

Update to the recommended GPU drivers. Players note specific older drivers can crash with FSR or on certain missions.
Close overlays and disable Xbox Game Bar if stuttering persists after all settings changes.
Some players report better results switching from DLSS to TSR if residual blur remains after applying the INI fix.

Apply the INI fix first, set the graphics options above, then play a mission with heavy combat and adjust only the heaviest settings (GI, then Lighting, then Effects) upward or downward based on your FPS. This matches what players are actively sharing as the practical path to a playable, clearer experience right now.