How to edit lighting in a game?

[Molkey]

I've been trying to edit lighting in 'Into The Dead' using iFile but without success can anyone tell me how to do it?
I think I need to edit part of the main data file:
ZOMBIEBONUSBLOODPARTICLES clearZoneDisabled
IntroSceneDefault
TransparentFXIgnore RaycastWaterEnemiesWeaponsPlayerPhysics:EnemyOnlyPhysicslayerOnlyTreesPhysics:Bonuses
SpawnPointGUIUI€?€?€?C€?Y
 VertexLit

Legacy Shaders/Diffuse Fast
Diffuse
Bumped Diffuse
Specular
Bumped Specular
Diffuse Detail
Self-Illumin/VertexLit

Self-Illumin/Diffuse

Self-Illumin/Bumped Diffuse

Self-Illumin/Specular

Self-Illumin/Bumped Specular
Reflective/VertexLit
Reflective/Bumped Unlit
Reflective/Diffuse
Reflective/Bumped Diffuse
Reflective/Bumped VertexLit
Reflective/Specular
Reflective/Bumped Specular
"Transparent/VertexLit
Transparent/Diffuse
Transparent/Bumped Diffuse
Transparent/Specular
!Transparent/Bumped Specular
2Transparent/Cutout/VertexLit
3Transparent/Cutout/Diffuse
4!Transparent/Cutout/Bumped Diffuse
5Transparent/Cutout/Specular
6"Transparent/Cutout/Bumped Specular
Parallax Diffuse
Parallax Specular
Self-Illumin/Parallax Diffuse
Self-Illumin/Parallax Specular
Reflective/Parallax Diffuse
Reflective/Parallax Specular
#Transparent/Parallax Diffuse
$Transparent/Parallax Specular
<Hidden/Shadow-ScreenBlur
=Hidden/Camera-DepthTexture
> Hidden/Camera-DepthNormalTexture
?Hidden/Internal-PrePassLighting
@%Hidden/Internal-PrePassCollectShadows
A#Hidden/Internal-CombineDepthNormals
BHidden/BlitCopy
CHidden/Shadow-ScreenBlurRotated
dDecal
eFX/Flare
fHidden/Internal-Flare
gRenderFX/Skybox Cubed
hRenderFX/Skybox
iHidden/Internal-Halo
?Particles/Additive
?Particles/~Additive-Multiply
?Particles/Additive (Soft)
?Particles/Alpha Blended
?Particles/Multiply
?Particles/Multiply (Double)
?#Particles/Alpha Blended Premultiply
?Particles/VertexLit Blended
(#Hidden/Internal-GUITextureClip
)#"Hidden/Internal-GUITextureClipText
*#Hidden/Internal-GUITexture
+#Hidden/Internal-GUITextureBlit
u'GUI/Text Shader
)&Hidden/TerrainEngine/Details/Vertexlit
)-Hidden/TerrainEngine/Details/WavingDoublePass
)6Hidden/TerrainEngine/Details/BillboardWavingDoublePass
)0Hidden/TerrainEngine/Splatmap/Lightmap-FirstPass
).Hidden/TerrainEngine/Splatmap/Lightmap-AddPass

)"Hidden/TerrainEngine/BillboardTree
)"Transparent/Cutout/Soft Edge Unlit

Unlit/Texture$
Custom/custom_bloodShot?Custom/custom_fastZombieEyes.Sprite/Vertex Colored, Fast#
Custom/custom_fastFogEmissive"
%Custom/custom_fastFogUnlitAlphaUVAnim
Custom/custom_vignetteLast?Custom/custom_fastZombieBody
Custom/custom_fadeOutLast
Custom/custom_fastTexColorBlend
Custom/custom_screenBlood?Custom/custom_alphaNoFog
Custom/custom_fastFogDiffuse%
Custom/custom_fastLensEffect-Sprite/Vertex Colored
Custom/custom_fastFogUnlit!
Custom/custom_fastFogUnlitAlpha
Custom/custom_simpleAdditive?
?.
?.
?.s0?c

Thanks Molkey