How do you create arrows for road signs using the Gmax BAT? there is no tutorial that I have seen, the only tutorial about batting the images are no longer available.
BAT beginners tutorial with working images (ST) (https://community.simtropolis.com/omnibus/simcity-4/bat-lot-editor-tutorials/bat-essentials-part-1-r11/)
3D modelling is at it's core all about shapes/geometry and combining them together to create objects. Depending on what you specifically wanted to make, either you'd create the entire shape using the tools available, or you can often make a more basic sign, for example a simple circle for the sign part and a cylinder for the pole. You can then apply textures that would include any other details of the sign, rather than model them directly, which is often a more efficient method.