Where are the Killing Floor 2 config files?

In C:\Users\ \Documents\My Games\KillingFloor2\KFGame\Config.

How do I skip the intro movies?

In KFEngine.ini find bForceNoMovies=FALSE and change it to TRUE, or delete the StartupMovies lines.

Why set the files to Read-Only?

Otherwise the game rewrites the configs on launch and your custom values are lost.

How do I get better audio cues?

Raise MaxChannels in KFEngine.ini from the default (usually 32 or lower) to 64 or 128 so more sounds can play at once without cutting out.

Binds & Console

KF2 Simple Config Guide: Render Distance, Gore, FPS, Audio

This compact guide lists the INI values worth touching in Killing Floor 2 for visibility, performance, gore density and sound. All three files live in C:\Users\YourUsername\Documents\My Games\KillingFloor2\KFGame\Config. Back them up before you start, and see the dynamic lights and texture streaming guide for related options.

KFSystemSettings.ini: view and shadow distance

GlobalShadowDistanceScale=1.000000 - shadow distance. 1.0 is 100%, 0.5 is 50%, 2 is 200%.
MaxDrawDistanceScale=1.000000 - render distance with the same scale.

Lowering these gives frames on weak hardware; raising them to 2.0 shows far detail at a cost.

KFGame.ini: corpse and gore limits

Setting	Suggested value	Meaning
BodyWoundDecalLifetime	30.0	Seconds wound decals stay
BloodPoolLifetime	20.0	Seconds blood pools stay
GibletLifetime	10.0	Seconds gibs stay
GoreFXLifetimeMultiplier	1.0 or 1.2	Depends on your graphics preset
MaxDeadBodies	12	Corpses allowed at once
MaxBloodSplatterDecals	20	Splatters on walls and floors
MaxBloodPoolDecals	20	Pools under Zeds
MaxBodyWoundDecals	5	Wound textures per Zed

KFEngine.ini: framerate, startup and audio

bSmoothFrameRate=TRUE, MinSmoothedFrameRate=22, and MaxSmoothedFrameRate set to your desired cap (or 999).
bUseTextureStreaming=False - the guide says this fixes VRAM instability.
Intro movies: find the StartupMovies lines and delete them, or simply change bForceNoMovies=FALSE to TRUE for a faster start.
Audio: find MaxChannels (usually 32 or lower) and set it to 64 or 128 so more sounds play at once, which gives clearer positional cues.

Important: make the files Read-Only

After editing, set the files to Read-Only in Windows. Otherwise the game overwrites your custom settings on launch.

FAQ

Where are the Killing Floor 2 config files?: In C:\Users\<YourUsername>\Documents\My Games\KillingFloor2\KFGame\Config.
How do I skip the intro movies?: In KFEngine.ini find bForceNoMovies=FALSE and change it to TRUE, or delete the StartupMovies lines.
Why set the files to Read-Only?: Otherwise the game rewrites the configs on launch and your custom values are lost.
How do I get better audio cues?: Raise MaxChannels in KFEngine.ini from the default (usually 32 or lower) to 64 or 128 so more sounds can play at once without cutting out.