I could get the first step right where I could see the mesh. After proceeding with the tutorial further and doing the visible mesh part, I now see nothing. I have checked the names and renamed everything to "tug_body" but it still doesn't show up in the game. Please help. The mapping name is right. Thanks for your time. Edit: It give me the ability to spawn it but after spawn it is blank. UPDATE: Mistake was inside .dae file where it was named CUBE by default. Replacing all words did not fix the problem except the invisible vehicle now spawns high above the ground.