UTGame.ini
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[UTGame.UTPlayerController]

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[Engine.DecalManager]
DecalLifeSpan=10.0

The default is 30. I set this so that decals never last more than 10 seconds. If you're hardcore crazy you can set that to a really high number.

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[UTGame.UTPawn]
Bob=0.000
bWeaponBob=false

Eliminates your weapon from bobbing up and down when your character moves.

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bLandingShake=false

This turns off an effect which can get annoying, quickly.

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bCenteredWeaponFire=True

The game default is to slightly offset where you aim, compared to where the crosshairs of your HUD are, to either the left or to the right of it, depending on what hand you use. If you set WeaponHandPreference to HAND_Right then you will aim to the right of the crosshair, for example. So I set the bCenteredWeaponFire to True to fire at the center of your crosshair by default, regardless of which hand you choose, or if you use Hidden.

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[UTGame.UTConsolePlayerInput]
bViewAccelerationEnabled=FALSE

This disables mouse acceleration. It's a good idea to do this and disable mouse smoothing at the same time.

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