Collision Model SMD file destination

Where do i find the collsion SMD file to the jeep in half life?

Im trying to edit it but i cant find the file.

also

where is that notepad file for a vehicle/prop to apply the destination to the smd file, example text inside $collision model.

This is a pretty bare bone help thread, you can extract the models from source games using GCFScape, it’s free and if you have trouble with it just reply, once you find the model (.mdl) you will have to decompile it most likely using Crowbar, you will get all sorts of SMD files like the LODs, main model and the collision / physics model, and also the “notepad file” called QC.

so i have the GCFScape but i cant find the buggy or airboat.

It’s in

Steam\steamapps\common\Half-Life 2\hl2\hl2_misc_dir.vpk\models\airboat.mdl
Steam\steamapps\common\Half-Life 2\hl2\hl2_misc_dir.vpk\models\buggy.mdl

okay found it, but when i decompile it and stright away compile it again i get this

ERROR: unknown bone reference ‘Airboat’ in weightlist ‘weights_weapon_pitch’
ERROR: Aborted Processing on ‘airboat.mdl’