@ Lack Thank you for the update and fixing the karbonite tanks. 3-2x1RoundFuel name = FSfuelSwitch Line 71 is missing ";Karbonite" Can you have a look at the 4x2NucENG it not loading I know why. I did find that line 33 -- model Squad/Parts/FuelTank/radialRCSTank/model The new file path from Squad -- Squad\Parts\FuelTank\RCSTankRadial