$include

The $include QC command is used to include the contents of an external .qc, or .qci file as though they were part of the parent file.

• MDL files can also be included by using the $includemodel command.

QC syntax example 1

• If another model uses a very similar skeleton to the one you're compiling, simply copy its ragdoll.qc to your model’s folder.
• Otherwise, copy $hl2/models/ragdoll.qc to your model’s folder.
• Then, at the end of your model’s .QC file, add :

$include      "ragdoll.qc".