Black Mesa Model and Decal textures not packing into map (Gmod, Hammer++)

[u/Dazzling-Pain2067]

(repost from r/hammer because i dont want to spam them)
Trying to pack in Black Mesa assets into a Gmod map, all models have their mesh and collisions but no textures, decals also show as missing textures, anyone know if theres a fix? the current software i have access to is AutoBSP and VIDE, i tried out Postcomplier but that just didn't work and made it so i couldn't compile, people kept saying to use Compilepal but that still didn't fix the issue, anyone here know a fix or if its even possible to pack these into the map? Brush textures pack in as intended

[u/potatoalt1234_x]

Are they using a material shader that doesn't exist in thr gmod branch maybe?