Editing the grunt

[Rapture]

Can't you just make a blank (Blank = Transparent) ".dds" file and just assign that to the grunt to make it invisible? (Something small like 32x32 to make the file size smaller)

You would have to first copy the "servant_grunt_hair.mat" because it's properly set up to take Alphas.
So copy it out and paste it over the (New Folder with the Invisible grunt) "servant_grunt.dds".

//***********************************
<Material>
<Main BlendMode="Add" DepthTest="true" PhysicsMaterial="Default" Type="soliddiffuse" UseAlpha="false" />
<TextureUnits>
<Diffuse AnimFrameTime="0" AnimMode="None" Compress="true" File="E:/lux/redist/entities/enemy/servant_grunt/servant_grunt_hair.dds" MipMaps="true" Type="2D" Wrap="Repeat" />
<NMap AnimFrameTime="0" AnimMode="None" Compress="true" File="E:/lux/redist/entities/enemy/servant_grunt/servant_grunt_hair_nrm.dds" MipMaps="true" Type="2D" Wrap="Repeat" />
<Alpha AnimFrameTime="0" AnimMode="None" Compress="false" File="E:/lux/redist/entities/enemy/servant_grunt/servant_grunt_hair.dds" MipMaps="true" Type="2D" Wrap="Repeat" />
<Specular AnimFrameTime="0" AnimMode="None" Compress="true" File="E:/lux/redist/entities/enemy/servant_grunt/servant_grunt_hair_spec.dds" MipMaps="true" Type="2D" Wrap="Repeat" />
</TextureUnits>
<SpecificVariables>
<Var Name="HeightMapScale" Value="0.05000000074505806" />
<Var Name="HeightMapBias" Value="0" />
<Var Name="FrenselBias" Value="0.20000000298023224" />
<Var Name="FrenselPow" Value="8" />
<Var Name="AlphaDissolveFilter" Value="false" />
</SpecificVariables>
</Material>
//***********************************

Simple change above the "E:/lux/redist/entities/enemy/servant_grunt/servant_grunt_hair_nrm.dds" & "E:/lux/redist/entities/enemy/servant_grunt/servant_grunt_hair.dds" to the blank, transparent, .dds file you have saved.

Their would be no point in including the "<NMap AnimFrameTime="0" AnimMode="None" Compress="true" File="E:/lux/redist/entities/enemy/servant_grunt/servant_grunt_hair_nrm.dds" MipMaps="true" Type="2D" Wrap="Repeat" />"