For some reasons unknown, i'm having issues getting my skin ingame, i rechecked everything: materials, Jbeam and skin name, it still won't appear ingame.
These files seem fine to me. You probably tried to put them in this folder: Code: vehicles\fullsize\ Doing that is a bad idea with a materials.cs file since that file will conflict directly with an official game file. Instead you should place those files in a location like this: Code: vehicles\fullsize\pissh_police\
You skin is made for witch car ? The materials.cs file you provided is a mix betwin fullsize (grand marchall) and the Ford crown victoria : Code: singleton Material("Ford_Crown_Victoria_.skin.police") { mapTo = "Ford_Crown_Victoria_.skin.police"; overlayMap[2] = "vehicles/Ford_Crown_Victoria_/body_police.tga"; diffuseMap[2] = "vehicles/Ford_Crown_Victoria_/bodymap.tga"; specularMap[2] = "vehicles/Ford_Crown_Victoria_/bodymap.tga"; normalMap[2] = "vehicles/Ford_Crown_Victoria_/bodymap.tga"; diffuseMap[1] = "vehicles/Ford_Crown_Victoria_/bodymap.tga"; specularMap[1] = "vehicles/Ford_Crown_Victoria_/bodymap.tga"; normalMap[1] = "vehicles/Ford_Crown_Victoria_/bodymap.tga"; diffuseMap[0] = "vehicles/common/null.dds"; specularMap[0] = "vehicles/common/null.dds"; normalMap[0] = "vehicles/Ford_Crown_Victoria_/bodymap.tga";