I'm making in Race Track Builder a flat track, like Castle Combe (or better, I get the Castle Combe map zone, and I flatted all the track layout, and I modified the layout), but I'm new modding for AC (I modded before with BTB for rFactor), and I need help. It comes with various layouts. I need help to: -Make concrete barrier xPack (with or without fence). -Make the physics for the track (the physics mesh I think is called).ç -Test the track and share the feedback (contact me via PM). Here a few snapshots of the track: (Note: the trees showed are only for environment test purposes. I need to find a good xpack that works with RTB with more and shorter trees.