Open Crowbar.
Click on Compile tab.
Browse for qc file or drag-n-drop qc file onto window.
Click the Compile for Model Viewer button.
Wait for compile to finish.
Click the View Compiled Model in Model Viewer button.
Make sure model looks correct in HLMV.
If it looks correct, then click on Crowbar's Compile tab.
Click the Compile for Game button.
Wait for compile to finish.
Click the Go to Compiled Model File button.
Cut the selected mdl file and the other files with same name (not including extension).
Paste the model files into the folder used for vpk release.