Metaconstruct is a fine example of pac3 as said before.

After that the pac has completely stabilized and you don't need to deal with lag. pac3 is only bad when a heavy ass pac is loaded up for the first time. Loading � stream loaded, 13, 13555670� Loading � stream loaded, 14, 105325� Loading � stream loaded, 15, 55170� Loading � stream loaded, 16, 78993� Loading � stream loaded, 17, 12537� Loading � stream loaded, 18, 7478125� Your part ogg has been applied. Pac3 is then added ontop, with it's own lag cause of the needed rendering of custom items. You can click the link or alternatively ,Blender is also available for download on Steam. PAC3 is a Garrys Mod add-on that gives you the ability to personalize your look by placing objects and effects on yourself. After that the pac has completely stabilized and you dont need to deal with lag. Here is messages given without the webaudio option being applied: Pac3 is then added ontop, with its own lag cause of the needed rendering of custom items.

How to add ogg files to pac3 in gmod