Hi I had model packs for FPS Creator like weapons, themes, vehicles and things like that and I want to use them in Unity 3D is that possible?
They don’t provide a format that is compatible with Unity. You can convert them to animated .fbx files with Ultimate Unwrap (among others, but that’s the one I’ve used in the past) quite easily, but its not a free program.
If they are in a proper file-format that Unity recognizes then the answer is yes.