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From HalfLife 2 Knowledge Base

This is a very simple layout of a model's .QC file.

// Output .MDL
$modelname [Your model name].mdl

//Location of textures in the materials folder
$cdmaterials models/[Your model name]
$staticprop   // Remove this line for a prop_physics object
$scale 1.0

// Whole body
$body studio "./[Your model's reference].smd"

// Sequences: all sequences are in $cd
$sequence idle "[Your model's animation sequences" loop fps 15
$collisionmodel "[Your model's phyisics].smd" {

// Mass in kilograms
$Mass 100
$concave
}

kieQC:

This is a simple tool, which creates such a simple qc-file for your model and compiles it right after that. You are also able to view it with one click in the HLMV.

Download here.