Custom models on Map!

I need help on how to make Custom Models appear in a gmod map i made.

Have you already modelled them?

If so: http://developer.valvesoftware.com/wiki/Compiling_a_model

If not: http://developer.valvesoftware.com/wiki/Model_Creation_Overview

No i mean i have putted some Team Fortress 2 Sniper Assets Pack models but they don’t show up when i load the map.

Add the custom models into the TF2 content. By that i mean put them in TeamFotress2 Models folder.