When you build your rfmod, edit the default.rfm and change this line to SafetyCar = SLSSafetyCar01.veh and save the Default.rfm, then save it as SLSSafetyCAR.rfm inside the same folder. You can tweak the other settings in the rfm such as the safety car speed and the other items. When you save it as SLSSafetyCAR.rfm then next time you go to make an rfmod, you don't have to do all this work over again. You will now have deafulat.rfm and SLSSafetyCAR.rfm in the same folder. Save the default.rfm with the new settings and choose default.rfm for the rfm you will be using for your rfmod. You can't use SLSSafetyCAR.rfm as your rfm. You can only choose default.rfm and when you make a rfmod. The default.rfm will reset to its original state after you exit out of MAS2.exe
