!API(s) // aDS3D, aOpenAL, aXACT, XAudio2, NoSound
!MixFrequency(i)
!Channels(i)
!ForceSoftware()
!ForceSoftwareEAX()
!ForceNoFXes()
!Quality3D(s) // low, medium, high
!UseEAX()
!ExtraSounds01()
!SpeechVolume(i)
!FXVolume(i)
!WaveVolume(i)
!GlobalSettings(s)
!DebugMode()

API("XAUDIO2")
MixFrequency(96000)
Channels(64)
Quality3D("high")
FXVolume(1
WaveVolume(13)
SpeechVolume(35)
GlobalSettings("")

// API can be changed but there's no real advantage in doing that, increasing channels and frequence is possible as well though for the frequence you won't really hear much of a difference though the game can still use higher values as long as your sound card can handle them.

!Resolution(i,i)
!WindowOffset(i,i)
!Monitor(i) // -1 primary monitor
!BPP(i)
!FSAA(i) // Full Screen AntiAliasing, 0 - none, higher is better
!TexBPP(i)
!TextureQuality(s) // VeryLow, Low, High
!Filtering(s) // Bilinear, Trilinear, Anisotropic, AnisotropicTrilinear
!GammaFloat(f)
!MaxRefresh(i)
!Shadows(s) // Low, High
!ShadowMapSize(i)
!Lightmaps()
!Fullscreen()
!VSync() // enable vertical sync
!MaterialQuality(i) // lower is better
!WaterQuality(i) // lower is better
!GrassQuality(i) // lower is better
!FXQuality(i) // higher is better
!FXFadeLevel(i) // 0-4 (lower is better)
!EnvQuality(s) // FullDynamic, RareDynamic, Static
!ShaderPath(i) // 0 - 1.1, 1 - 1.4, 2 - 2.0, 3 - 3.0, 4 - x360, 5 - 4.0, 6 - ps3
!PostProcess(s) // Simple, Normal
!DisplayDeviceType(i,f,f,f,f) //device type (LCD TV etc.): 0 - default
!Curves(s) // curves texure

Resolution(1680,1050)
Monitor(0)
BPP(24)
FSAA(4)
TexBPP(32)
TextureQuality("High")
Filtering("AnisotropicTrilinear")
Fullscreen()
Shadows("High")
ShadowMapSize(2048)
Lightmaps()
GammaFloat(1.00)
MaxRefresh(60)
MaterialQuality(0)
FXQuality(3)
FXFadeLevel(0)
WaterQuality(0)
GrassQuality(0)
EnvQuality("FullDynamic")
ShaderPath(3)
Postprocess("Normal")
DisplayDeviceType(0,0.000000,1.000000,1.000000,1.000000)

//Shaderpath would have been nice to get to "5" (DX10) but it seems only SM3 works, looks OK though, also added trilinear filtering to the texture filtering along with anisotropic filtering, bit of a quality increase albeit probably not very noticeable, pushing shadow resolution from 1024 to 2048 pixels however made a nice change in detail as did enabling FSAA though I need to compare that better.